What size engine / displacement?
 

Hi,

I realize this may be an very "bonehead" question...but I'm not opposed to that:)

My 914 had an engine rebuild/replacement prior to my ownership. It was originally a 1.8L and I believe it is now a 2.0L bored out to 2.4L. Does this sound reasonable or likely? What is the best/easiest method to determine what size engine I have and its displacement? I do know that the heads are 2.0 ported and it had a big bore kit used? What else should i look for?


Thanks,

J

You can take it apart (pop the heads off) and measure the bore and stroke.

You can try to fnid someone who can "pump it" and measure the volume of air that goes through it for one full cycle.

Or... Hmm, what else? You may be able to get a guess at the stroke with the "chopstick" method (chopstick in the spark plug hole; only on 2.0 heads or you may break it off inside the chamber!) but I can't think of anything else you can really do without tearing things apart.

--DD

what specs for a valve adj
 

If doing a valve adjustment per the write-up on the site, would I use the specs for a 2.0L since I don't know the specifics of the build?

What displacement heads do you have?
Look at where the intake manifolds mount, are there 3 bolts (2.0l) or 4 (1.7l or 1.8l) IIRC.
Mike

If the valve stems for the exhaust valves (those are the outboard ones) are thicker than those of the intake valves, use the larger spec. If not, use the smaller spec.

Actually, documentation from the engine builder would be preferred; he would be able to say if the exhaust valves are the stock 2.0 sodium-filled ones or not.

--DD

you need to figure out what your push rods are made from

if they are stockers than 2 ltr should work, but if their manton or another brand ( material )

you will have a new spec. IE 0 lash possibly

I was able to track down the previous owner.

They took the original 1.8L and had it rebuilt as a stroker 2.5L which was designed as a super vee engine.

I believe the builder was a company named Revco in Southern California. Anyone know of them and if they are still in business. I would love to get a build sheet.

So, with all of that being said. I have some oil leaks. Not sure if I follow directions for working on a 1.8L or, if due to the build up to 2.5L, that I need to enlist the help of a shop. I'm at a loss for just the basic specs to use for valve adjustments, timing, etc?

I'm certainly going to learn a lot here...and the car is a blast to drive.

J

Perhaps "Rimco"? They're definitely still around. http://www.rimcovw.com

Hard to know the exact figures without knowing what went into the engine. I'd be tempted to use the 0.006" adjustment all the way around (or at least check against that to see if the valves are all tighter than that, or if the exhausts are all looser, or what) for the valves, and about 27 deg BTDC at 3500 RPM for the timing. But realize those are only guesses...

--DD