[Vwdiesel] swapping a good head - DIY head prep??Will Taygan william at taygan.comMon Nov 9 12:16:54 PST 2009
'82 Westy rebuilt head shaved so much I've got a valve tap?? all the time - would like to pull it and put on the junker Jetta (assuming it's mechanical - it's not the original engine). Of course it could be a loose prechamber - either way I want it off my new rebuild :) Question is can I just swap the head, or do I really need a shop to shave/clean it up (which isn't really an option). I would then put a different rebuilt head (From the '90 Jetta) onto the '82 Westy, since that's the vehicle I need to run well. Maybe I'm doing too much. Real problem is constant valve tap on '82 Westy, I think it's shaved so much that I haven't been able to really adjust it out. Maybe I could pull the head and put in a 3 notch gasket? (have a 2 notch now) ** But it's the same issue: Can I pull a "good" head and prep it at home, or do I need to get it shaved at the shop - which won't work for this head (that's the only way they do it up here...) I didn't want to toss the Westy head, but re-use it for the '90 Jetta (needs rings and gasket, so I've got to pull that head and have it rebuilt anyway - just thought I'd keep the better (Jetta) head for the good Westy and put the tappy one in the junker Jetta). Thanks! Will. (On Mon, 2009-11-09 at 15:03 -0500, LBaird119 at aol.com wrote: > Maybe it's the flu but I'm not getting why you need to rebuild > the rebuilt head? Valves can "tap" and not bend, most of us have > had the cam timing off that far at least once and got away with it. > (or at least seen it happen). > If it's not crashed then all you really need, maybe, is a valve or two > or so. It shouldn't be warped should it? > In actuality you can surface those heads a lot more than most shops > are willing to go. I had one that hit the valves when he was surfacing > it. No charge, it was "junk" at that point. We put it on the car and > it ran great! The only thing you really have to watch is when you > grind the valves and/or seats, the valves drop into the head more > so you really need to shorten the ends of the stems or you end up > using really thin shims to get them in spec. With hydraulic valves it > all the more important to end up in range. > Loren > _______________________________________________ > Vwdiesel mailing list > Vwdiesel at vwfans.com > http://www.audifans.com/mailman/listinfo/vwdiesel >
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