[Vwdiesel] swapping a good head - DIY head prep??
Will Taygan
william at taygan.com
Mon 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
>
More information about the Vwdiesel
mailing list