CAT 3406B Liner Projection And Counterbore
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- Опубликовано: 1 фев 2020
- Caterpillar liner projection and counterbore on my 3406B S/N prefix 7FB.
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I’m no engineer but you are a fascinating guy to listen to. Such knowledge presented in a brilliant way. Cheers from England
Pure Matterhorn white 😊
i really enjoy your educational videos about truck mechanics.
Gotta use a liner sled gauge. And that block had decent fretting on the water passages on the block. You can get by doing what you did and hope for the best. Next time take it from a machine shop and get stainless inserts for the are passages and get the liner counter bores cut and. Shimmed with stainless. You can deck the block a bit and run a thicker spacer plate. They can ensure the block is very accurate and will last longer. When you lay your spacer gasket use locktite aviation gasket maker. On both sides this helps a lot with movement of the gasket. Lube your head bolts in copper coat and engine oil. Or mp50 molylube
Excellent job!! A chimpanzee would be able to follow along!! Thanks for going down to help Tim, I’m sure he was very grateful for your support. Thanks Kc
That is one of the best videos that I have ever watched on liner protrusion. Keep up the good work.
Nice to see @KT3406E being mentioned about in the comments. Stellar guy and pays attention to the most minute details
Great presentation. Very clear and to the point.
Just started watching your channel and so far no disappointments. Makes for easy listening when someone is as articulate as you are . We have several rgns in and out everyday hauling equipment and most if not all have chain and binder rails mounted on the gooseneck facing the rear of the trailer. If theft is your main concern I understand why you don't but it would save you a pile of energy every day instead of having to climb up on the deck of the tractor constantly although it helps to keep the joints in shape. It's simply a piece of 3/16 x 1.5 flatbar welded there. Never heard of anyone loosing anything while driving. Second suggestion would be a piece of timber under the buckets of excavators, especially under the linkage to save your trailer deck from taking a beating resulting in an undesired lumber replacement job. Lastly, I believe the main reason for taping a forward facing exhaust is to not have the turbo bearings run dry but I could be wrong. You can buy leather/vinyl sleeves made specifically for this that are held in place with a bungee. Miles faster and saves the pipe from being covered in glue when delivered to the customer. To me, seems more professional. Keep up the good work and thanks again for the quality content.
I switch trailers often. I use company trailers for the versatility of multiple types for now.
@@fsctrucking Gotcha.
Very informative, great job!
Great video. Very easy to understand.
Great video. Got a B model in my truck, and always looking for videos like this.
Great video
Wow man awesome video. Highly detailed. Impressive.
Excellent video 👍
Vary good video. Thanks!
3406e has a good video on liner protrusion. Great video!
He definitely has the best knowledge of Cats. Love his channel.
all of your videos are good keep it up
You are gutsy doing that work
On a 3408 cat everything I always saw on this engine is that they have to be done very carefully and there is a lot of ways to do it wrong and have problems down the road good luck my man I hope everything goes well for you
i appreciate you wanting to do this build properly using the manual. your intentions are admirable. that method of measuring liner protrusion is not as accurate as the specs cat is looking for. there are too many moving pieces to that dial indicator. the proper tool is a magnetic base with the dial indicator built in stationary. i know this engine is already done and running but it would be interesting to see how those measurements compare to the actual protrusion gauge measurements. i dont think that process of bolting the spacer plate and liner was accurate. i may be wrong but i thing there is an updated procedure that requires quite a bit more bolts and torque spec. regardless, it is up and running and i hope it treats you well. like you, i am not a big truck engine mechanic....i have to figure it out as i go.
I found out about updates after I did the inframe. I was using the book I ordered from Caterpillar. On the plus side the job was done by a pro but sat for years, which is why I took it apart. She simply lost the O Rings.
I have been building formula 1 wet liner engines for 20 years, after doing my apprenticeship on big diesels 30 years ago, notably Cat, Cummins, Scania and Mercedes engines. For a field repair of an engine, how he did it was more than accurate enough. Those things are tanks, not Ferrari, my friend. FSC, keep on trucking, I love your vids. And the sound of that big Cat!
Minimum liner projection is 0.0035" now. If you have to recut, shoot for 0.005" - 0.0055". Much higher will crack liner flanges.
I like the 3406B ATAAC
You made a very good video. I have a 7FB engine in my old 84 EXHD pete that needs rebuilt. I have already pulled it out of the truck and just checking out videos like your. I hope your engine is running good for you. I would like a updated video on it.
As of now she has about 7k miles on her. So far she is running great and has no issues
ruclips.net/video/ZWgjPBIz2CY/видео.html
Nice 👍👍👍❤️🔥👍
I hope you looked at the lowers (counter bores where the o-rings go) and checked them for pitting. The one upper o-ring was pretty deteriorated. They are known for that. Im sure that's why she got milky. I work for a engine machine shop in northern Illinois if you ever need some engine machining done. Dustin@Precision Automotive Diesel
Yes, looking at the lower bores should always be done. Our machine shop took a old tool for cutting for inserts, and designed it to cut the lower bores, in machine. Had to take out adjoining liners to set up tool. Also need to look at top of block for erosion and measure it, because it well effect the protrusion. The reason for the erosion is if you notice where the valves in the head come close next to the liners, when the valves open and close they heat and cold the liner in those spot, and they move causing wear to the liner! When you put in stainless steal inserts they dissipate the heat in those areas, and tends to stop the wear cycle!!! I say these after being the field machinist that went out and cut for them for 18 years of the 46 1/2 years I worked for a cat dealer!
Excellent video bro. What's the next video after this one.
Thank you for the details. And yes, you are right the devil is in the details.
💪💪💪👍👍👍
Those short bolts, and the fiber washers are only used to check the liner projection?
Excellent explanation but I have a question with the different allowable measurements on the 4 corners of the liner does that mean the top of the block is not perfectly flat?
I think it's a combination of imperfections of the block, head surface, liner, etc. It can happen to be that the imperfections in each of the pieces add up to the total being out of spec. It seems like most of the time it just works but if it doesn't then you can rotate the liner or swap them between the cylinders so the imperfections don't line up.
What is the ordering information for those bolts?
It was that damned old rusty wheel
Bro can you do a video on overhead and jake adjustment? We have literally the exactly same engine. But mine is a k100e it’s an 85
I guess I could next time I do the overhead.
What's The squarebody in the back ground
I think it's called liner protrusion
I can't imagine a Cat dealership mechanic putting in as much time to make sure all those numbers were correct.
Yes cat dealers do this religiously like every diesel engine dealer does because it is a very important step!
Im down in houston tx, i have the same motor previously painted white in an 89 fld. What was the significance of the white color? I wish i had someone like yourself to run questions by down here. Respect from HTOWNTX
It was a PACCAR thing in the late 70s early 80. They wanted to set a higher standard in trucks. So they had a deal either Caterpillar to paint truck engines for PACCAR Matterhorn White. This is a slightly different white from Caterpillar's Marine engines.
I check protrusion not projection
Only 10thous reason for this is your measuring un torqued height before head torque
Using a dial indicator with magnetic base is really not a accurate way to measure liner protrusions. There is simply too much deflection and too many movable parts. The actual liner sled gauge has the dial indicator mounted rigid to the sled gauge and you zero it on the deck surface or spacer plate and slide it onto the liner. Every time you move a indicator on a magnetic base the measurements change.
Patrusion I no it's spelled wrong
Hey Steve, this video popped up today so I watched it again. At the 16:45 mark I noticed something when you showed the liner with the damaged o-ring. I noticed some damage just above the groove caused possibly from electrolysis. That’s probably how you were losing coolant.
Did you check if the block was grounded properly? I always run extra ground cables on the front and back of my blocks to a good ground point.
Loving the videos!
Im rebuilding a 3406 B and a C right now. The C projection seems better than yours, the B is out of spec. Im in a Facebook cat group and getting lots of negative input from the steering wheel holders , i see your driving yours in many videos , they got me worried about blowing a head gasket now
10-4 colleague
dont close that engine ur block needs machining. i set my liner protrusion at 6 thousand. 4 is still low..
It's called protrusion not "projection"
I said same thing!
And yet the manual said projection....18:00.
@@jimjonrs3932 you can’t fix stupid!
They walk among us. They are hard to spot until they open their mouth. Lol!
Caterpillar G3406 TA Natural Gas engine. Rated at 255HP
Service manual pdf send Plesse Sir...
I hate to tell you. Your book is out of date and your bolt quantity was not enough, 26 needed. Bolts 7H3598, washers 8F1484 and 7X0564, torque bolts to 70 FT LBS, Liner projection on a counterbored block is .0035 to .006. Your Cat dealer should have informed you of Reuse and Salvage guideline, media number SEBF9008. Updated 12-9-2019. Replace all head bolts and use moly paste on them. Hope you don't blow a head gasket.
The bolts in this video were only for the counterbore. The head was installed using new head bolts. Including the "Jacobs" bolts. This complete job was done after consulting the service techs at Caterpillar many times.
@@fsctrucking I realize that, the proper liner projection hardware is listed above. Read SEBF9008 from Cat.
Did your Cat techs inform you of this media to look at? Been working for Cat 39.5 years now.
And yes your 7FB is a 400 HP. Most you could get out of a JWAC engine.
Glad you use new head bolts. Min liner projection is .0035 on a counterbored block.
@@johngoldsmith6629 no. They did not. Thanks for the information. She is built now so we will see.
@@fsctrucking Good luck
well id he does it wont be what he did here but cats junk liner/counterbore design
Ppl
This video stressed me.
Great content, but it would been even better without the music. Sorry, but the music is just an annoying distraction.
Excellent, excellent video. Great explanations and demonstrations! Yes, agree with others, check out "KT3406e" RUclips videos. The guy is meticulous!