Classic Mini Cylinder Head Overhaul Tips And Tricks - Part 3
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- Опубликовано: 3 окт 2024
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For those reaming by hand, don’t forget that you must never turn the reamer anti clockwise. When withdrawing the reamer, keep it turning in a clockwise direction.
Thank you for such a great video series
Brilliant video. Watching it from canada
Welcome Alan Glad you enjoyed
More informative tips 👌
Brilliant explanation thanks so much for sharing your expertise and thinking.
Amazing content! Your little tips and gotchas make for a very detailed video.
Paul, don't worry too much about how often you can get a video out. Quality over quantity and all that. So long as we know something good is coming eventually, it's all good. After all, I (and I suspect, many others watching this channel) have also been following Project Binky for the last 8 years, and if we can put up with one video every 3-6 months without complaint (or at least, not too much complaint), then you've nothing to worry about. Cheers, mate. :-)
That is good to know Paul. I love making the video's and really enjoy hanging out in the shop with all you good folk so its just a case of finding time to squeeze in and produce something of value to everyone. Some youtuber's out there fall into the trap of making content for the sake of making content I don't want to waste anyones time with that lark 👍
Yeah spottted it 😬🤪
Good Job Philip glad you guys are watching, keep me on my toes 👍
Without doubt the best RUclips channel I've come across. I love the way you never trip over your words, it shows that you really know what you're talking about. Priceless knowledge, thanks so much for sharing.!
Wow, thank you Phil very kind of you to say. no problem 👍
1st lol and just sat down for the evening after sorting the garden out and covering the car over for winter!
Well make a nice cupa and enjoy another episode 😀😀
@@HREIRL Cupa???? nope. Alcholic hick beverage yes lol. On a serious note what is your current turn around time for a engine rebuild, nothing special just a nicely built boring 850?
At the moment the workshop book is closed as I have enough work on hand to see out the year. However typical standard engine rebuilds run 6-8 weeks depending on availability of parts which is quite a problem at the minuite with brexit and customs 😑
@@HREIRL This year your fully booked?? thats really good as it keeps the pennies coming in. I'm looking for next year sometime Paul.
Hi Paul, you obviously didn't hear me screaming at the screen " you've got the wrong guide", lol. Hey we all make mistakes, thanks for another great video. Cheers Pat
I think I did, Billy had only switched off the camera when I said we will have to re shoot that I put the wrong guide in Exhaust 4 but we decided exactly that we all make mistakes the trick its coping it and sorting it before it becomes a problem
Another great video, with the process explained in an easy to understand way.
Most welcome Gavin
Your attention to detail is fantastic, back in the day we never used to bother about the valve spring recess depths. We used to taper the guides though, have never reamed out a guide but did lap any tight valves in with cutting compound. By the way we only had the standard guides back then. A really excellent video, as you say quality counts over quantity. Did spot that deliberate error you made to check that we were awake!
Hi Tony, Thanks for the comment I always like to hear how you guys did things back in the day. Like you self up until about 6-7 years ago I didn't ream the guides either just a quick lap. Now however they are making these guides to such tight tolerances if you not ream them perfect they are very likely to bind up so its great piece of mind to ream them and know you are spot on size 👍 glad you are liking the content and I will continue do my best to keep up the quality
I did wonder about the valve guide but thought know best 😉
Thanks for watching Nicholas, I reckoned people would be screaming at there screen haha
Very imformative , thank you. I 've definitely learnt something. And I particularly like your well detailed explanations.
You are most welcome Richard. Thanks for the lovely comment.
Another brilliant video, I was contemplating getting a head ported for the 850 as I'm working on a spare engine in the spare time. A lot of people were saying when porting go for as smooth a finish as possible, glad I watched this. This is all depending on getting a higher camshaft out of an 850 Spider/Coupe. Thanks again Paul and Billy!
You are most welcome Dude, If you dont get sorted with a cam Give me a shout, we have a man in stock that can work magic with the originals 👍
@@HREIRL you guys are stars, many thanks!
👍
Hi Paul, congratulations on another brilliant & informative video. Really good point you make about using a drift that has a concave end profile so it does'nt damage the valve guide end near to the bore. I've read how critical valve to valve guide clearence can be with regard to the possibility of heat from the exhaust valve causing detonation (pre-ignition) The valve guide with a free running clearence transmits some of this heat away from the combustion chamber. The article suggested not fitting Stem Seals to the exhaust valves to further aid cooling. I would be interested in your views on this.
Hi Martyn, thank you and glad you like the detail. Yes valve guid to valve Clarence is really critical. On race motors I actully use a hand hone and bring them out half a thousand at a time untill my go-no go gauge fits giving me the most accurate fit. I have never fitted an exhaust valve stem seal to any cylinder head I have built in the last 10 years the only down side is that as the valve wears you can get a very slight puff of smoke on initial start up as excess oil that has dribbled down the stem while the motor has been stoped burns off. However the increased cooling and heat removal is well worth it 👍👍
Another class educational video lads, well done 👍
Great Video Paul.
What about heating the head and or cooling the guides befor driving them in?
Great Idea Francisco in the past I have cooled guides in liquid Nitrogen, however you have to be very careful as they can drop right through the head so a dept stop needs to be set for each guide. Can be done but alot more time consuming plus Liquid Ni has become bloody expensive
Thanks again for more great content and explanations. It looks like there's grunge in the thermostat housing and probably the rest of the water jacket. I assume the machine shop will be boiling/cleaning it out when there?
Well spotted Ron, yes it’s actually currently sitting in a tank full of Evapo-Rust. Hot power wash tomorrow morning and every bit of that will be gone 👍
Why do you hammer the valve guides in instead of pressing them in? i would have thought pressing them in would be better, no sharp blows if you see what i'm getting at. Oh at 19:00 you answered my question lol..................#youralwaysonestepahead 🤣
Haha i knew there would be questions on that one hahaha
@@HREIRL One of these days you'll be to quick for yourself lol
So Project Gretal is at a stand still and you have work coming out your ears..............life is good lol. P.s dropping my engine to you soon!!!! but a A series engine with a difference or not lol !!!!!!
19:55 ......................googles what a fly press is lol........................My God........used to use one of those at an engineering company i used to work at lol
Ya there a wonderful piece of kit for jobs like this
Its s good video, but quit switching the camera angles so quickly please. It makes it really hard to track what you're doing. Ta