caen fred Posted February 14, 2006 Share Posted February 14, 2006 I have bebuilt a L28 but it still on my engine stand! I would like to go back to the head to port it and shave 2 mm off! May I re-use the head gasket? The engine had never started and never been runing with coolant! Quote Link to comment Share on other sites More sharing options...
BlackBeaut Posted February 14, 2006 Share Posted February 14, 2006 Think VashonZ meant to post elsewhere. Anyway, I reckon you should be able to use the gasket. However I think you're a bit off the mark thinking you can mill 2mm of the head. More learned people should be along soon hopefully. Cheers, Rob Quote Link to comment Share on other sites More sharing options...
thehelix112 Posted February 14, 2006 Share Posted February 14, 2006 I believe you can. You then need 2mm shims for the cam towers, and an align bore on them to get the cam sitting as its supposed to. I don't know what sort of compression you would be looking at though. Dave Quote Link to comment Share on other sites More sharing options...
caen fred Posted February 14, 2006 Author Share Posted February 14, 2006 the 2 mm are quoted from my Z engine guru... "Dave JARMAN " in the UK My question was really is it safe to re-use the gasket ( 'cause a good one take years to find here in France!). I can have the shims machined here! Quote Link to comment Share on other sites More sharing options...
thehelix112 Posted February 14, 2006 Share Posted February 14, 2006 That depends how stuck it is to the head/block and if you can get it off without damaging it. If so, then I don't see why not. Dave Quote Link to comment Share on other sites More sharing options...
Guest norm[T12SDSUD] Posted February 14, 2006 Share Posted February 14, 2006 If it is a "dry" gasket you may get lucky. I tried that once with a stock Nissan gasket and once you bolt it down you can't reuse it. BTW you can always buy a headgasket from someone on the forum and have it shipped to you via Airmail Parcel Post. BTW you can shave 2 mm no problem as long as you are sure the head hasn't been milled in the past. Later,Norm Quote Link to comment Share on other sites More sharing options...
AK-Z Posted February 14, 2006 Share Posted February 14, 2006 If its for anything performance related then I say just try to find a new one. If is for anthing that like daily use then I would say you can reuse the old one. If you have to use a scraper to get it off, use a plastic scraper so you don't end up damaging the surface of the metal. IMO. I say get a new one. You spend all your time, money, and labor on rebuilding your engine, might as well get a new one as a precautionary measure. Quote Link to comment Share on other sites More sharing options...
caen fred Posted February 14, 2006 Author Share Posted February 14, 2006 Hmmm, I guess you are right! What are the options... Feelpro, or OEM, or ???? Quote Link to comment Share on other sites More sharing options...
AK-Z Posted February 14, 2006 Share Posted February 14, 2006 I'm not sure. With felpros I've read on here that people have had some bad results some good. I think that most people on here will suggest the OEM ones. I've heard great results with the nismo gasket, but have also read that the there are some tiny oil seepage and is normal. I think that MSA and Arizona Z are the best place to look that I know of. http://www.arizonazcar.com/gasket.html http://www.zcarparts.com/store/merchant.mvc?Screen=CTGY&Category_Code=PEM09 Some other people might post some other places. Quote Link to comment Share on other sites More sharing options...
caen fred Posted February 15, 2006 Author Share Posted February 15, 2006 Merci Quote Link to comment Share on other sites More sharing options...
zguy36 Posted February 15, 2006 Share Posted February 15, 2006 I've had some luck with a copper head gasket. If you are opening up your motor a lot, then they are worth the little extra money as they can be cleaned up and re-used. As for a stocker, don't mess with it, order up a new one. They are designed to crush when bolted down so that they fill any imperfections in the block and head. Once crushed, they don't uncrush and won't recrush when bolted back down again. Quote Link to comment Share on other sites More sharing options...
Mack Posted February 15, 2006 Share Posted February 15, 2006 I have had no problems with my Fel-pro gasket, and Im running 11.4:1 compression and it was my daily driver for about a year and a half in that configuration. only reason it is not my daily driver now is because I moved fropm phoenix (the desert) to minneapolis (a winter wonderland) and I dont want my car to be eaten alive by salt! If you are looking at going the "shave and shim" route, I would suggest tracking down a Maxima N47 head. I dont know what it was called over in europe, but the car looks liek this PIC and it is powered by an L24E. it was manufactured from 1981 to 1984 here in the states. bolting the head from this car on to an L28 with flat tops will give you 11.4:1 compression. if thats a little high for your tastes, have the machinest open up the chamber a few CCs by unshrouding the valves and taking the bump around the sparkplug down a little. It will be a whole lot easier in the end than it would be to machine cam spacers, have the cam align bored, find the larger valves, shaving your head 2MM, and all that junk. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.