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Hello
My question is not directly car related, but I have an issue with my air compressor. It had various issues, but mainly the compressor head not making much pressure. I have taken it all apart, sorted a few issues out, but it has a broken gasket between the piston barrel and the first of the head plates.
Now I was just going to lap the surfaces and use a spot of instant gasket, but on putting it back together I have realised that the previous head gasket was 0.6 mm thick. Without it the piston CROWN kisses the head.
What would be the best sort of gasket material to use as replacement. I have looked on Ebay and there are a number of varitions on paper and fibre gaskets of various thicknesses. Any idea what sort would be the most suitable?
Would a standard oiled paper/card gasket work? Or would I need more of a compressed fibreous type?
Ta muchly
Lewis
P.s. sorry for the simpleton question.
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Last Edit: Oct 10, 2011 19:52:12 GMT by lewist123
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Depends what make compressor it is? I had a gasket issue on my 3hp sealey unit. Spoke to Sealy direct, and they will supply every single part sepreatley. Head gasket, and a new drivebelt set me back £19  |
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Tillio Race Prep and Spares Ltd
Oval racing Rollcage fabrication from £250.....Track car builds, engine conversions etc...
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It is an old Wolf 2.5hp unit. Unfortunately it is from the time before wolf went bust, so the current incarnation of wolf do not hold spares for it.
The compressor is generally in good order, but decided to pop a number of gaskets in the compressor head.
Lewis
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smurf
Part of things
Posts: 829 
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Cant you make a thin metal plate copy and instant gssket both sides before reassembling it?
It might br slightly bigger thsn 0.6mm bit it could be worth a shot
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Laser cutting and cnc punching (up to 3mm stainless and ali, up to 6mm mild steel)
Mail me a dxf file and i'll get you a price
Metal folding and custom fabrication service also available
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g40jon
Posted a lot
Posts: 2,569
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skim the piston down a bit
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What about making a gasket out of some copper sheet ?
Paul H
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It may have been CAF originally (compressed asbestos fibre). I'd just use that again as it'll deal with the heat and pressure okay. We use it at work but not sure if we'll have 0.6mm. Probably got 1mm if you get stuck.
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1962 Datsun Bluebird Estate - 1971 Datsun 510 SSS - 1976 Datsun 710 SSS - 1981 Dodge van - 1985 Nissan Cherry Europe GTi - 1988 Nissan Prairie - 1990 Hyundai Pony Pickup - 1992 Mazda MX5
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Paul
Good shout! I have some 1mm copper sheet knocking about, as it happens, so I will give that a crack first.
If not I will try a paper gasket and see how it works out.
Thanks
Lewis
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My last lawnmower (Briggs and Stratton engine) did two seasons with a head gasket made from a cornflake packet. I was most surprised it lasted more than 5 minutes......
Your compressor might well have higher pressure to contain though.
Nick
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1967 Triumph Vitesse convertible (old friend)
1996 Audi A6 2.5 TDI Avant (still durability testing)
1972 GT6 Mk3 (Restored after loong rest & getting the hang of being a car again)
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Ratdat, thanks for the offer.
I have a sheet of 1 mm brass, so will have a go with that. If that doesn't work then I will try and get a fibreous gasket material.
Thanks
Lewis
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Oct 10, 2011 19:54:37 GMT
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Well to update, I used a bit of 1 mm brass sheet and crafted a new gasket.
All seems good now. The compressor makes good pressure and fills up about as quick as it did before.
Thanks for the suggests.
Lewis
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Oct 10, 2011 20:08:20 GMT
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Its more than likly a common pump unit, as most compressor companys buy a pump from Atlas copco or another italian company, so if you have any more problems try and find a good air house and they should be able to find a gasket that will fit.
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1987 Mini with Suzuki Swift GTI engine
2005 BMW E91 320D Touring
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Oct 10, 2011 21:16:41 GMT
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Haha, I WISH. It is a cast in one unit including the motor. It really is a cheep terrible design, but it is what I got |
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