Really appreciate your videos and thoroughness explaining everything. Did my turbo swap from your other video and now doing the water pump. Had a little different experience being I have a ATI super Damper so had to wait in the proper tools for reinstatement. Thank you for the videos
Mike, really appreciate you doing these videos. It's nice to have a channel that is tailored to the duramax platform. Attention to detail is great as well. Thanks again!
Thank you. Not sure my channel is solely tailored to the Duramax platform but I appreciate the comments. I hope the video was helpful and informative. Mike
Hi Mike. I loved this video so informative. I know you did this project quite a while ago but is there any chance you could link in all the part numbers in your description? It would be SO helpful as I’ve decided to try this project. Don’t have a fancy angle Torque wrench but I’m going to try and use a 360 protractor and mark it at zero and 105 degrees then torque to 74 lbs feet and mark where the zero is on the engine then torque till the 105 degree mark lines up with the mark on the engine. Can’t justify the 1900 wrench for one project . Thanks so much for your awesome videos.
Thank you Mike great video I am in the middle of doing a project on my 08 Duramax w/375k On original water pump I had a heat fluctuation while towing & I wasn’t comfortable (Tran-215&motor-220) it was only 70*outside ,so I pulled radiated power washed decided to go the Root with water pump, thermostat, etc. first time doing a project on original water pump I had a mild heating problem I towing so I pulled radiator power washed decided to go for Root with water pump, thermostat, etc. first time doing a project, my question is, do you need to change the bolt on the harmonic balancer?thanks again
Glad the video was helpful. Yes, the crankshaft harmonic balancer bolt is a torque to yield bolt and therefore a one time use. It should be replaced after each removal and should not be reused. Thanks for taking the time to watch. Mike
Nothing that can't be done with basic hand tools. The few specialty tools I used just made the job go a little quicker is all . Glad the video was helpful thank you for taking the time to watch. Mike
Hey great video thank you! I have been wrenching for 45yrs usually 7 days a week. I was blessed with somewhat of a gift like you and also like you I try to share it with good folks. So again thank you! I have a question.... I have never really worked with diesel... I have a freind w a 2005 c4500 w 6.6l duramax. He's been living w a tiny coolant leak he was told was a headmaster at the rear. Last 2 days he's had a progressively stronger coolant leak which I believe I've traced to the wp lower side I assume a weep hole. But I took ac compressor , bracket , ps pump , steering shaft all out of the way so I could find the small coolant leak as well. And it appears to be lf corner TOP of cylinder head under the 3rd layer of valve cover and gasket assy. He also appears to have the front injection above that area to be leaking full externally. Is greasy wet. I've never worked with this design. Does this sound possible about the coolant under the vc leaking a tiny trail ? I do have pics if needed. Please help.
Being a 2005, that's going to be the LLY Duramax and they wouldn't have a coolant source under the rocker cover. Had it been an LB7 maybe, as they have an injector cup that can leak. It is possible it's a head gasket but generally on the Duramax's, unless they're running a crazy tune or something they don't have a habit of leaking headgaskets. I'd look very closely at and around the water pump. Thank you for taking the time to watch and for the comments. Mike
Thanks for the Video Mike, Question - if harmonic balancer is installed backward and only torqued to 74 ft/lb then removed and installed correctly, is there anything that could have been messed up? (Key/pin etc.) Thanks!
Not that I can think of. Inspect the pin carefully to make sure it is ok but if you didn't torque the fastener to it's final specification I wouldn't think it stretched it at all. Thank you for taking the time to watch. Mike
Awesome video! It was probably your partiality stuck thermostat that kept that pump from weeping earlier and with the new thermostats your system pressure was back to spec. 👌🏼
Thanks Anders. That was exactly my thoughts as well. With the cooling system being able to get to full operating temperature, and therefore pressure, that is when it decided to start leaking. I appreciate your taking the time to watch. Mike
Mike, first of all thank you for doing these videos! They are extremely helpful. My question is what digital torque wrench are you using for the harmonic balancer? I’ve been searching on the net and can’t seem to find one that’s over 250 ft lbs with the exception of the one I found from Snap-On. Thank you for your time.
Thank you for continuing to watch and follow my channel. The torque spec for the crank bolt on the Duramax is a torque/angle specification and not a direct torque. You need a way of measuring angle after the initial torque value. The specification is 74 ft/lbs. then another 105-degrees. In the past I used an angle attachment for my torque wrenches, however for the past decade or so with most manufacturers going to the torque/angle method, I purchased and use the Snap-on TechAngle torque wrenches. I have one in 3/8" and one in 1/2" variety that I use for these torque/angle fasteners. I hope that is helpful. Mike
Thanks for the video. Helped me a lot. What is the tool that you are using to sqeeze the tube of gasket sealant? Looks like it would save a lot of waste.
Thank you for taking the time to watch. The sealant applicator is made by Valco. I've had mine for 20+ years but they are still available. Here is a link to one. Valco Cincinnati 71416 Tube-Grip 2" Dispensing Plier with Sealant Dispensing Tool a.co/d/5W7HJNu
Do you use any loctite on the fasteners? 18 ft lbs is pretty low to trust that they wouldn’t vibrate loose. Also wondering the thought process behind testing the system by pulling a vacuum vs. pressurizing? Figured testing the system under the conditions that it operates would be preferable.
No Loctite on the fasteners that hold the water pump to the front cover. The torque of 18 ft/lbs. is factory spec and no need to worry about them coming loose. It puts the fasteners in enough tension that it retains the fastener as well as maintains the proper seal with the gasket (O-ring), even through many heat cycles. As for testing, I prefer pulling a vacuum for two reasons. First is the leak test, as I have had systems hold coolant under pressure where they wouldn't hold in a vacuum. Therefore, if the system holds in a vacuum I can verify without doubt it will not leak. Secondly, by pulling a vacuum, valving it off and verifying it holds I can then suck coolant back into the system knowing for certain I do not have any air pockets (trapped air) in the system when it is put back into service. Many newer vehicles have cooling systems where the engine is at a higher elevation than the radiator or surge tank making it nearly impossible to fill without trapping air unless a vacuum fill is used. This performs all the checks and duties in one process and provides a quicker return to service as well as removes any doubt that the system is properly filled with coolant. Hope that explains it and helps. Mike
Mike the torque on the balancer bolt from all installs I’ve watched is 260 ft pounds. Do you think this is true with 74+105 degrees? That it would come out to 260?
Hey brother just finished the water pump , truck started of great but started to shake right after… harmonic balancer bolts got loose. Any tips on how to fix ?
Need to lock the flywheel and then torque the banner bolt to spec. That balancer bolt is a torque to yield bolt and should be replaced after each use. Torque is 74 ft/lbs + 105 degrees. Thanks for taking the time to watch. Mike
Don’t feel bad - I likely would not have replaced my ‘07 LBZ water pump at 120K miles either. My LB7 went 220K on original. My current LBZ has 170K on original. Only an original equipment one will be used when I do replace - they tend to last. Great videos and I love your shop (I’ve seen your shop tours)!
FSM states 25.4 quarts but that is a completely dry system. I generally get around 4+ gallons out of them when draining for repairs or soft coolant exchanges.
gracias a dios llego bien mi compa solo una pequeña recomendacion piedras negras es la mejor opcion yo viajo mucho solo paguen sus impuestos y todo estara bien dios les bendiga
Yeah, I've got a buck or two invested in tools and equipment.😜 Thank you for taking the time to watch and for the comments. It's really not that bad of a job though so don't be discouraged. Mike
@@zmotorsports62 really wish I was close to you. I’m not sure local mechanics will take the care and attention to detail you’d take. And yes your tools and cabinets are AMAZING!
Thank you for the kind words. I'm sure there are other good mechanics out there but unfortunately the ones who take the time to do a thorough job and take pride in their work are getting fewer and father between. Mike
Thank you very much, the interview and write-up was very much an unexpected surprise. Glad the video was helpful, the water pump replacement is pretty straightforward. Thanks again for watching and for the comments. Mike
Thanks Mike! Great video and excellent step by step procedure. Going to eat my Wheaties before attempting the 74 ft.lbs + 105 degrees
Really appreciate your videos and thoroughness explaining everything. Did my turbo swap from your other video and now doing the water pump. Had a little different experience being I have a ATI super Damper so had to wait in the proper tools for reinstatement. Thank you for the videos
Thank you for the comments. Glad the videos have been helpful. Thank you for watching.
Mike
Mike, really appreciate you doing these videos. It's nice to have a channel that is tailored to the duramax platform. Attention to detail is great as well.
Thanks again!
Thank you. Not sure my channel is solely tailored to the Duramax platform but I appreciate the comments. I hope the video was helpful and informative.
Mike
@zmotorsports either way, appreciate the duramax videos when you do them.
Thank you.
Hi Mike.
I loved this video so informative. I know you did this project quite a while ago but is there any chance you could link in all the part numbers in your description?
It would be SO helpful as I’ve decided to try this project. Don’t have a fancy angle Torque wrench but I’m going to try and use a 360 protractor and mark it at zero and 105 degrees then torque to 74 lbs feet and mark where the zero is on the engine then torque till the 105 degree mark lines up with the mark on the engine. Can’t justify the 1900 wrench for one project .
Thanks so much for your awesome videos.
Part #'s added to description.
@ you’re awesome!!!!!
Congratulations on the Banks interview they got the right Man for the job. Another great video.
Thank you David. Much appreciated my friend.
Hope you and Kim are doing well.
Thank you Mike great video I am in the middle of doing a project on my 08 Duramax w/375k On original water pump I had a heat fluctuation while towing & I wasn’t comfortable (Tran-215&motor-220) it was only 70*outside ,so I pulled radiated power washed decided to go the Root with water pump, thermostat, etc. first time doing a project on original water pump I had a mild heating problem I towing so I pulled radiator power washed decided to go for Root with water pump, thermostat, etc. first time doing a project, my question is, do you need to change the bolt on the harmonic balancer?thanks again
Sorry got redundant should’ve read it first
Glad the video was helpful.
Yes, the crankshaft harmonic balancer bolt is a torque to yield bolt and therefore a one time use. It should be replaced after each removal and should not be reused.
Thanks for taking the time to watch.
Mike
Thanks for the detailed video. Are there any substitutions for tools you used? Removal of fan?
Nothing that can't be done with basic hand tools. The few specialty tools I used just made the job go a little quicker is all .
Glad the video was helpful thank you for taking the time to watch.
Mike
Hey great video thank you! I have been wrenching for 45yrs usually 7 days a week. I was blessed with somewhat of a gift like you and also like you I try to share it with good folks. So again thank you!
I have a question.... I have never really worked with diesel... I have a freind w a 2005 c4500 w 6.6l duramax. He's been living w a tiny coolant leak he was told was a headmaster at the rear. Last 2 days he's had a progressively stronger coolant leak which I believe I've traced to the wp lower side I assume a weep hole. But I took ac compressor , bracket , ps pump , steering shaft all out of the way so I could find the small coolant leak as well. And it appears to be lf corner TOP of cylinder head under the 3rd layer of valve cover and gasket assy. He also appears to have the front injection above that area to be leaking full externally. Is greasy wet. I've never worked with this design. Does this sound possible about the coolant under the vc leaking a tiny trail ? I do have pics if needed. Please help.
Being a 2005, that's going to be the LLY Duramax and they wouldn't have a coolant source under the rocker cover. Had it been an LB7 maybe, as they have an injector cup that can leak. It is possible it's a head gasket but generally on the Duramax's, unless they're running a crazy tune or something they don't have a habit of leaking headgaskets.
I'd look very closely at and around the water pump.
Thank you for taking the time to watch and for the comments.
Mike
Thanks for the Video Mike, Question - if harmonic balancer is installed backward and only torqued to 74 ft/lb then removed and installed correctly, is there anything that could have been messed up? (Key/pin etc.) Thanks!
Not that I can think of. Inspect the pin carefully to make sure it is ok but if you didn't torque the fastener to it's final specification I wouldn't think it stretched it at all.
Thank you for taking the time to watch.
Mike
Awesome video! It was probably your partiality stuck thermostat that kept that pump from weeping earlier and with the new thermostats your system pressure was back to spec. 👌🏼
Thanks Anders. That was exactly my thoughts as well. With the cooling system being able to get to full operating temperature, and therefore pressure, that is when it decided to start leaking.
I appreciate your taking the time to watch.
Mike
Mike, first of all thank you for doing these videos! They are extremely helpful. My question is what digital torque wrench are you using for the harmonic balancer? I’ve been searching on the net and can’t seem to find one that’s over 250 ft lbs with the exception of the one I found from Snap-On. Thank you for your time.
Thank you for continuing to watch and follow my channel.
The torque spec for the crank bolt on the Duramax is a torque/angle specification and not a direct torque. You need a way of measuring angle after the initial torque value. The specification is 74 ft/lbs. then another 105-degrees. In the past I used an angle attachment for my torque wrenches, however for the past decade or so with most manufacturers going to the torque/angle method, I purchased and use the Snap-on TechAngle torque wrenches. I have one in 3/8" and one in 1/2" variety that I use for these torque/angle fasteners.
I hope that is helpful.
Mike
Thanks for the video. Helped me a lot. What is the tool that you are using to sqeeze the tube of gasket sealant? Looks like it would save a lot of waste.
Thank you for taking the time to watch.
The sealant applicator is made by Valco. I've had mine for 20+ years but they are still available.
Here is a link to one.
Valco Cincinnati 71416 Tube-Grip 2" Dispensing Plier with Sealant Dispensing Tool a.co/d/5W7HJNu
Thanks. ordered it from Amazon
Glad to help.
Mike
Nice job, and very nice shop.
Thank you. I appreciate you taking the time to watch and comment.
Mike
Do you use any loctite on the fasteners? 18 ft lbs is pretty low to trust that they wouldn’t vibrate loose.
Also wondering the thought process behind testing the system by pulling a vacuum vs. pressurizing? Figured testing the system under the conditions that it operates would be preferable.
No Loctite on the fasteners that hold the water pump to the front cover. The torque of 18 ft/lbs. is factory spec and no need to worry about them coming loose. It puts the fasteners in enough tension that it retains the fastener as well as maintains the proper seal with the gasket (O-ring), even through many heat cycles.
As for testing, I prefer pulling a vacuum for two reasons. First is the leak test, as I have had systems hold coolant under pressure where they wouldn't hold in a vacuum. Therefore, if the system holds in a vacuum I can verify without doubt it will not leak. Secondly, by pulling a vacuum, valving it off and verifying it holds I can then suck coolant back into the system knowing for certain I do not have any air pockets (trapped air) in the system when it is put back into service.
Many newer vehicles have cooling systems where the engine is at a higher elevation than the radiator or surge tank making it nearly impossible to fill without trapping air unless a vacuum fill is used. This performs all the checks and duties in one process and provides a quicker return to service as well as removes any doubt that the system is properly filled with coolant.
Hope that explains it and helps.
Mike
@@zmotorsports62 makes sense! Thanks for the through and fast reply!
Happy to help and thanks for watching.
Mike
Mike the torque on the balancer bolt from all installs I’ve watched is 260 ft pounds. Do you think this is true with 74+105 degrees? That it would come out to 260?
It's might be close but I choose to use the torque/angle method as spec'd out in the factory service manual. That is 74 ft/lbs. plus 105-degrees.
Mike
Great video! Doing this later on my truck and helps!
Glad it's helpful. Thanks for watching.
Mike
Hey brother just finished the water pump , truck started of great but started to shake right after… harmonic balancer bolts got loose. Any tips on how to fix ?
Need to lock the flywheel and then torque the banner bolt to spec. That balancer bolt is a torque to yield bolt and should be replaced after each use. Torque is 74 ft/lbs + 105 degrees.
Thanks for taking the time to watch.
Mike
Another Great video Mike!
Thank you Scott.
Don’t feel bad - I likely would not have replaced my ‘07 LBZ water pump at 120K miles either. My LB7 went 220K on original. My current LBZ has 170K on original. Only an original equipment one will be used when I do replace - they tend to last. Great videos and I love your shop (I’ve seen your shop tours)!
Thank you. I appreciate you following along and for the comments.
Mike
Getting varying quantities of dexcool capacity. What is the total needed for the job?
FSM states 25.4 quarts but that is a completely dry system. I generally get around 4+ gallons out of them when draining for repairs or soft coolant exchanges.
gracias a dios llego bien mi compa solo una pequeña recomendacion piedras negras es la mejor opcion yo viajo mucho solo paguen sus impuestos y todo estara bien dios les bendiga
Looks like you’ve got a couple of bucks in tools and cabinets. Nice job. Enjoyed watching although I think a little more than I want to tackle.
Yeah, I've got a buck or two invested in tools and equipment.😜
Thank you for taking the time to watch and for the comments. It's really not that bad of a job though so don't be discouraged.
Mike
@@zmotorsports62 really wish I was close to you. I’m not sure local mechanics will take the care and attention to detail you’d take. And yes your tools and cabinets are AMAZING!
Thank you for the kind words. I'm sure there are other good mechanics out there but unfortunately the ones who take the time to do a thorough job and take pride in their work are getting fewer and father between.
Mike
CONGRADULATIONS on the accolades from BANKS, vert cool, i think i can do this thanks pump change.
Thank you very much, the interview and write-up was very much an unexpected surprise.
Glad the video was helpful, the water pump replacement is pretty straightforward.
Thanks again for watching and for the comments.
Mike
Great Job ,
Thank you and thanks for taking the time to watch.
Mike
Very helpful 11:29
I'm glad the video was helpful. Thank you for taking the time to watch and comment.
Mike
Nothing worse than doing part of the job twice, I think everyone who has worked on a car has experienced this once or twice.
Agreed. Been there more than once and I kick myself in the but when I know better. 🤣
Thanks for taking the time to watch.
Mike