[Vwdiesel] Misc '79 Rabbit questions
Tony and Lillie
tonyandlillie1 at earthlink.net
Fri Nov 10 13:00:16 EST 2006
Subject: Re: [Vwdiesel] Misc '79 Rabbit questions
> Haven't ever seen a int. shaft break a thrust such that I
> can't even think of what the thrust looks like on one and
> I've seen many! I'd put in a good, used shaft. SHOULD
> be able to use one from any 1.6 or even some of the early
> gassers. Shouldn't be hard to find one though. DEFINITELY
> do the int. shaft bearings though!!!!!!!!!! They flake with age
> and you'll have oil pressure problems at the least.
I"ve thrown out more gassers than I car to think about, DOH!!! I'll see if
Ican dig up a good one somewhere, though.
> file smooth and that's it. No cracks between the valves
> almost qualifies as rare! :-)
This I know!!
> Difference in head gaskets is something like .006"
> (without looking). Best thing is to measure the piston
> projection on each piston, figure about what the upper
> average is (they're rarely even) and if you don't have a
> Bentley, post it here and someone will look up which
> gasket you need.
How do I measure the piston protrusion? I don't have a machine shop, just
the tools to do nearly everything else.
> Tranny fluid needs to be GL-4. Dig up a FF five speed
> and put in there while you're at it. :-) As a friend put it,
> it eliminates that feeling that you're "ready for take-off"
> while driving down the highway!
Wish I had one laying around. Once again, threw out a few a couple of years
ago "cleaning up"
> From what I recall, you just put on the vented rotors
> and matching pads (thinner). Never found a problem
> with the solid ones though. Kinda like putting disks
> on the back, nice but does it REALLY make a difference?
Well, on the Jetta, they were smoking and fading badly after a long descent
down a steep grade. I drive mine like most poeple don't :) I've put about
5000 miles on my Jetta in 2 months. I also autocross, and will be using the
Jetta when it's ready. But, that's another story.
> Doing all this and only CONTEMPLATING doing the
> injectors??? If they're over 75 to 125K old you'll NOTICE
> the difference. Most are. Shop around, I just came across
> injectors for $33 something. :-) My WHOLESALE supplier
> wants $62 my cost!!! A friend got me one for about $35 from
> a former supplier of mine. :-)
> With all you're doing there's only one issue. Pistons. You
> really should check your bore and if it's worn beyond spec,
> you're putting a lot of money into a worn engine and .0024"
> is the amount of wear that's "allowed." Pistons are no longer
> available for a 1.5 :-( There are a few sets floating around out
> there but generally not from suppliers. I like the 1.5 better
> myself but for that reason a 1.6 to rebuild should at least be
If I were contemplating, I'd do a 1.6 at the least. As I am not set up for
engine work (This is why I like the Audi's I work on) I do not intend to
tear into the bottom end. I am doing the guide seals, though. I'd love to
have the head rebuilt, but my income has gone from $2100 (when I bought the
parts) to $650 (now, different priorities), so I'm a bit unable to do
everything. I can deal with blowby, etc a bit. I can't deal with a blown
headgasket or hose on a 2000 mile trip somewhere!!!
> If you disassemble the head you'll probably find worn guides,
> exhaust valve stems, seats and valve seat faces. New stem
> seals are a good idea too. I usually find I spend as much on
> the head as the rest of the engine and I do about all of the
> work on both myself.
> Is it a yellow dot pump? (068-130-107 A,
> I think that's right, the last 4 is what counts anyway) The 1.5s
> REALLY run nice with them but don't forget they time at 1.15mm
> and not .88mm or 1.0mm.
The car will go on a trailer to the local (old school) VW tech, so he can do
all the timing and valve adjustment for me. Unless one of you wants to make
a bit extra money. ;-) On that subject, is there a good place to get the
valve adj tool and shims for reasonable? How often do most of you do yours?
Thanks again, Loren and Nick,
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