Head and Cam Swap, 82 CFI


Looks like you are using a refrigerator to store chemicals. Good idea,
that should help if there is ever a fire!

Oh, nice engine pics also!!!

 
That's my friend's shop, my garage just isn't big enough to allow me to do this build and still park the other car. When the pushrods get here, we're putting the motor back in.
 
Hit a snag with the A/C. The liquid line hose was too long. No problem, they sent a fitting with it so you could shorten it and have it re crimped. So I took my hose and my fitting, marked where I needed it cut (after measuring and verifying 6 times). So I get back, and the fitting they sent is too small for the evaporator line. Great. Can hose fittings be un-crimped, or do I need a new hose assembly? I really should have checked if the spare fitting "fit". Right now it's a "not-fitting". Push rods should be in tomorrow, then we finish buttoning up the motor. I need this A/C line done, but if I have to wait a bit, then I have to wait. Sucks, though. Rant over, lol.
 
The engine is in the car. Pix to follow as soon as I have time. Ran into an issue with the Renegade, we have to elongate the bolt holes, it's not lining up. A/C hose came in today, but wasn't crimped, so I have to get it crimped Monday. Almost there...
 
Yet another issue with the Renegade. The Distributor pad is machined about 1/4" too low. Not sure what to do at this point. Is there a way to get a thicker gasket for this? Or will I need to get some cork material and make my own? Any and all ideas welcomed...
 
http://www.stockcarracing.com/techartic ... tallation/

if your distributor won,t seat on the manifold and gasket the oil pump drive shaft may need to be shortened (thats the correct route)or theres distributor shim gaskets

viewtopic.php?f=54&t=123&p=326#p326
http://www.stockcarracing.com/techartic ... tallation/
http://www.summitracing.com/parts/mor-26150
mor-26150.jpg

dispac.png


viewtopic.php?f=70&t=251&p=1366#p1366

viewtopic.php?f=54&t=123&p=326#p326
 
Great Work.
There is no race to win Saturday for You and Trophy to bring home.
Double check & Triple Check all before hitting the key to start it.

What Pistons did you use ?
They look like Kieth Black Hyperpuentics.
If so they are Great Pistons for Street use.
 
Thanks Brian :) You are right, I am in no hurry. I will take your advice and triple check everything so that I'm sure I haven't overlooked something. I used DSS forged pistons (http://www.summitracing.com/parts/dms-e350-030). The full floating pins were a breeze to install. I got the a/c finished up, once we get the cam broken in I'll put vacuum on it then charge the system and I should have cold a/c to go with my new engine.
 

There is a check list for the startup that might be useful. It's available in PDF. Also
a file for Excel if you want to make changes to fit your situation. It starts with the
day before and finishes with a few things after break in.

I went thru this a few months ago with mine, it will put a BIG SMILE on your face! :)

viewtopic.php?f=99&t=10153&p=40036&hilit=+Day+Before+Startup+#p40036

The 1st of 6 pages looks like this.....



 

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Thanks for the checklist. Already done most of it twice, but I'll be going over it again (and again) before I turn the key. Filled the block tonite, gonna let it set overnight to let the air work it's way out, then top off if necessary. Maybe starting it tomorrow, maybe waiting another day or so. I'm not happy with the looks of the passenger throttle body, it's open way too much and I need the balance of the throttle bodies to be close or the rpms will jump all over (ask me how I know...).
 


OK ..... you wanted me to ask, so how would you know ... or maybe you
have been there done that!

I guess you know we need VIDEO for something this important!!! A photo or
two won't cover it this time!
 
When I first got this 82 it ran fine, but idle was all over the map. It had a serious surge. 700-1200 and back again. I'm trying to verify timing during all this and its driving me nuts! So off to the computer I go, looking for the answer to the hunting idle and I stumble across the balance write ups. I go out and look, and the butterflys are noticeably different. So I get some clear tubing, a yardstick and some green food coloring and make myself a crude (but very effective) water manometer. I start the motor and it does it's usual hunt. I pull the cap on the balance port and hook up my manometer and watch all my water get sucked away in an instant. Laughing, I back off on the set screw and refill my manometer. 12 inches it moves (6 up on one side, 6 down on the other). It's supposed to be 6, not 12. I back off the screw slowly and watch the water come down, stopping when I get to 6. Idle is really jumping now, so the water is bouncing making it hard to read. I move to the other tb and lose my water again. So i back off on the balance screw, refill and try again. After a couple more tries I get it set to 6. Recheck the first one, recheck the second one. It's much easier because they are close. I finally get it done but my idle is steady at 900. I back off on the screw until my idle is at about 550 in Drive, reset the TPS and I'm golden. I look at the clock, 3 hours have passed and I'm down to 1/4 tank of gas. It was like I had a new motor in the car, better throttle response, better off idle performance. I rebalanced them after I rebuilt them a year later and it only took 15 minutes. Setting timing was a breeze after that, too. My timing, once I balanced the TBs was at about 3 degrees. I set it to 6 and got even better performance, but a few months later it started pinging. That's when I started talking with Brian and ended up rebuilding the engine. You saw the pics of the cam, so I did the right thing. I have the tb's close again, how the butterflys got so far off again is a mystery. I think the last time I checked balance the pass. side wasn't balanced due to the lower vacuum on that bank due to the valves not opening as far because of the wiped lobes. That's my theory anyway. I have them close enough by measuring for an initial setting (pulling a strip of paper through and adjusting until I just barely feel a drag on the paper) to get me through cam break-in, then I will set the balance after I have completed that step. There will be video of idle and such once I have her all dialed in. I also just cleaned up a spare pair of TB bases that have a better balance set screw on the passenger side TB and I'm most likely gonna swap the bases after cam break-in and use the better bases for the balance, then clean up and repair the bases I have on the car now. It never hurts to have spares. I need one replacement injector tower for my spare set, one is cracked at the base of an injector, so it's pretty much ruined. I'd like to clean the injectors, too, both sets. Not sure how to do that, though. Maybe Grumpy will know.
 

That story even made me feel good!!! It's great when one can devise his
own tool and make such a great difference in performance. Now that's a
job well done in my books.

You should really try to get some sleep, post at nearly 3 am???

 
Its best to have the Crossfire injectors professionally cleaned.
Rebuilt if necessary .
I don't like FIC. LONG STORY.
ON DIGITAL CORVETTE FORUM THERE IS A FAIRLY NEW SUPPORTING VENDOR THAT SPECIALIZES IN FUEL INJECTION SERVICE.
IN NEW YORK. READ GREAT REVIEWS MYSELF GOOGLE SEARCHING.
I DON'T RECALL THE VENDORS NAME RIGHT NOW.
BUT JUNKMAN WILL KNOW. FLAG HIM DOWN.
DON'T USE FIC. BETTER OFF COMITTING HARRY CARRY SUICIDE.

BR
 
We broke in the cam this evening. All went well, I'll have to balance the tb's and re set timing, it was off a little on the low side. Nice red hot headers! No issues during the break in of the cam, but when I shut down the motor, the return heater hose split. I have the replacement in hand, and the 3/4 supply hose will be here tomorrow, gonna change em both. I had a patch on the a/c box, it got melted off by the heat from the headers. I found one on ebay so I'll just replace the whole box, mine is shot anyway. That motor sounded great! It fired right up and ran good, considering the questionable balance on the tb's and the too retarded timing. I'll get those issues fixed and the hoses replaced very soon. Waiting for the motor to cool a little before I change the oil. Had a CEL for about 10 min but it went out during the last half of the run and never came back on. I think we're 90-95% done! I have a great big smile on my face and my neighbors probably wonder what the heck is going on in my garage! More pics and a video to follow, the video will be once I have the balance and timing straight. Just a little more to go. NO leaks tonite of any kind other than the split hose. Overall it went very well. I'm glad the hose split at home instead of on a cruise, easy fix!
 
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