ZR-1 Net Registry Forums - "New" Z on the way... 1991 #302

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- - "New" Z on the way... 1991 #302 (http://zr1.net/forum/showthread.php?t=11553)

Re: "New" Z on the way... 1991 #302

Quote:

Originally Posted by VetteMed (Post 87887)

Update:

Pulled plenum, injector housings, breather box, alternator, AC compressor, oil cooler, AC condenser, radiator, fans, tensioner.

I've removed the secondary butterfly assemblies, and I'm going to have Marc Haibeck burn a chip. I'm not going to reinstall all of the under-plenum vacuum plumbing, it's just too old and dried out for me to want to gamble. Everything plastic is just brittle and itching to crack. I was surprised at how relatively simple the process of removing the secondaries was.

The Fluidyne radiator is still in excellent shape, so that goes back in. Some loose paint on the oil cooler, cleaned that up, got new lines to install for that too. The AC condenser looked to be original, so that's being replaced.

I have a new AC compressor and a rebuilt alternator on the way. New water pump will be going in. Old alternator was making some noise, and the AC compressor was seeping oil everywhere.

The one thing I've found so far which concerns me a little, is some areas of rust-colored staining of the block at the areas of cyls 7 and 8. I worry that this may be a sign of headgasket seepage, but the oil and coolant both look fine, and there's no white smoke from the exhaust... so I'm going to button it all back up and hope for the best.

More to come...

Consider doing a leak down test before you put it back together just to put your mind at ease Med. Napa also sells a "sniffer" that will check for the presence of exhaust gases in your coolant. Just my $.02, but I would rather know for sure than wonder.

Re: "New" Z on the way... 1991 #302

Argh, I stripped the heads of 3 torx bolts on the passenger side cam cover. Grrr.

Re: "New" Z on the way... 1991 #302

Quote:

Originally Posted by VetteMed (Post 87988)

Argh, I stripped the heads of 3 torx bolts on the passenger side cam cover. Grrr.

I feel your pain, I did the same thing on mine, had to drill the heads off. Time for a set of SS bolts! :mrgreen:

Re: "New" Z on the way... 1991 #302

Quote:

Originally Posted by bdw18_123 (Post 87990)

I feel your pain, I did the same thing on mine, had to drill the heads off. Time for a set of SS bolts! :mrgreen:

Yep, that's the plan, I already have the SS bolts here, but 2 of the stripped heads are behind the AC/heater box... which means I think I may have to pull that out. Might go ahead and replace the AC evaporator, since I'm replacing the rest of the AC components too... lots of the dreaded "job creep" on a 188k mile car :dontknow:

Re: "New" Z on the way... 1991 #302

Quote:

Originally Posted by VetteMed (Post 87993)

if you are going to do it.. do it right..

good luck on the TORX Bolts.. I had 2 stripped on mine..

Re: "New" Z on the way... 1991 #302

Quote:

Originally Posted by bdw18_123 (Post 87990)

I feel your pain, I did the same thing on mine, had to drill the heads off. Time for a set of SS bolts! :mrgreen:

This comes under the heading of "too late now" but....:-({|=
A friend showed me how a swift crack of a hammer on a sawed off
allen wrench helps break the thread bond.
Even in the hard to reach screws you can still sit a crowbar across the
top and whack the crowbar.

Re: "New" Z on the way... 1991 #302

Got the passenger side cam cover off today, had 3 bolts that were stripped, lots of fun getting those out. Now, on to the driver's side cover.

Re: "New" Z on the way... 1991 #302

Driver side cover is off, no stripped bolts on that side :occasion1

Re: "New" Z on the way... 1991 #302

Quote:

Originally Posted by VetteMed (Post 88205)

http://i680.photobucket.com/albums/v...t/IMG_2428.jpg

http://i680.photobucket.com/albums/v...t/IMG_2427.jpg

Looks familiar as I am finishing up my plenum pull.

Re: "New" Z on the way... 1991 #302

How goes it? Did you do the leak down test?
H

Re: "New" Z on the way... 1991 #302

Buttoned it all back up, seems to run OK, but I've got a code 64 and code 55. I haven't done any troubleshooting other than that, as I'm in the middle of moving (twice in 2 weeks, first rental was in terrible condition, infested, etc). I probably won't be able to do anything on the car over the summer at all, I suspect :-x