Cylinder head and sand paper
- Thread starter gstuart
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No, young Mark Cleave did similar years ago on his RRC
He had a build thread somewhere on here.
Very cheap and very effective in a get you out of a bind situation.
discool
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It can be used on any flat alloy or other soft mating surface so a common practice.
Sent from my iPad on a train
Sent from my iPad on a train
jamesmartin
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a bit of a bodge considering the effort needed and the cost of a professional skim and without the ideal finish
Colthebrummie
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I agree, it must be hours of laborious work. I don't know how much a head skim costs but I'd happily pay £100 to save a day of arm aching work.
Col
discool
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He’s done quite well therefore it’s not a “bodge” also it’s work in progress and he understands the need for a more suitable finish.
Obviously he has a skill and well equipped garage and can mig weld alloy... but doesn’t have a handy vacuum cleaner... he also stated would have liked a milling machine.
I suspect that he doesn’t have a “professional” in his location to do what was required, just plenty of people to sell him a new head.
Any way good luck to him.
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jamesmartin
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its still a bodge whatever the reasons,and not good practice, ive seen quite a few heads, some from firms and individuals have done similar thinking you can make a decent job of skimming a head by sanding
I've used similar to reface things like thermostat housings & on various things on British motorbikes back in my youth - usually due to being skint.
Did the faces of the tubular manifolds on my RRC a couple of years ago to remove some deep pitting.
Be careful to avoid slight rocking as you do it or you'll make matters worse - much like learning to use files properly.
Did the faces of the tubular manifolds on my RRC a couple of years ago to remove some deep pitting.
Be careful to avoid slight rocking as you do it or you'll make matters worse - much like learning to use files properly.
IMHO, This is not a bodge at all - it's a needs must solution - I remember my father doing it years ago, with progressively finer wet and dry, and light machine oil .... it worked without issue. It is also the most tedious fecking job you could ever take on - potentially worse than even the br*xit negotiations 
- and probably a similar time frame
Cost is irrelevant - if you haven't got the money, then it "makes no nevermind" - and, as above, if there is no one locally to do it, then cost is irrelevant !
- and probably a similar time frame Cost is irrelevant - if you haven't got the money, then it "makes no nevermind" - and, as above, if there is no one locally to do it, then cost is irrelevant !
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Never did an episode of Neighbours at lunch seem so interesting than when i used to sit at the kitchen table lapping valvesBet there’s a good few of us that remember having to grind valves in with the old suction cups along with using the fine and course paste
Must be one of the most boring jobs ever
jamesmartin
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remember ,i still doBet there’s a good few of us that remember having to grind valves in with the old suction cups along with using the fine and course paste
Must be one of the most boring jobs ever
jamesmartin
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tis common for such , i use a flat plate for bushes etc for gear box and other builds but a heads a different matter, you might get away for awhile but its still a bodge and it wouldnt be true on such a large area
I agree. But if the person doing the job is determined to get a flat surface, without milling it, then it is possible to use sanding on flat plate or even a scrapper and machinist blue. The latter is a very long process, but anything is possible with enough determination.
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With some trepidation, I have to admit that I have done this on a Mini head back in the early 80's
With no money and no access to a mill big enough, I spent some hours with a glass plate and emery paper flattening off the head....
It lasted as long as I owned the car
With no money and no access to a mill big enough, I spent some hours with a glass plate and emery paper flattening off the head....
It lasted as long as I owned the car
bongo1
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When i started work at a garage the first job i had was to grind the valves in on 40 heads , felt like millions of them , At least they gave me a bit of a break/excitement letting me serve fuel . if my memory is correct they were Landrover heads .Bet there’s a good few of us that remember having to grind valves in with the old suction cups along with using the fine and course paste
Must be one of the most boring jobs ever
norseman
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At least they didn't have you just making the tea, or asking the storeman for a bubble to fit the spirit level
Henry_b
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It's a matter of opinion, I've done it on the M62 engine.
Not taking any metal away It was 900grit IIRC just removed contamination from the head surface.
Not taking any metal away It was 900grit IIRC just removed contamination from the head surface.
bongo1
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They were pretty good about making brews lol , but i grew up , dragged up with trucks so was wise to the tricks , still went along with them as it gave me break fetching buckets of air etc .At least they didn't have you just making the tea, or asking the storeman for a bubble to fit the spirit level
