Corvair Engine Failure and Revival: From Disaster to a Fresh Rebuild!
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- čas přidán 6. 10. 2023
- In this video, I share the rollercoaster journey of my recently purchased Corvair, which went from excitement to despair when its fresh engine failed on a road trip due to a poor-quality rebuild. Join me as I show you what failed on this newly rebuilt engine and take you with me while I replace it with a meticulously rebuilt powerhouse. Learn about the lessons I've gained along the way, the challenges that were faced, and the satisfaction of having my Corvair back on the road with a brand-new engine. If you're a fellow Corvair enthusiast or just love a good comeback story, this video is a must-watch! Don't forget to like, subscribe, and share your thoughts in the comments below. #Corvair #EngineRebuild #automotiverestoration
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Great to see the Vair again
Thanks very much, so glad to have it back running.
One of these days im gonna have a garage almost as big as yours, With multiple car lifts ! Your shop is Awesome !
Thanks, it took a long time and a lot of hard work to be able to have it.
On the road! Well done.
thanks!!
Corvairs are just beautiful cars. And this one is really really nice. And the best part is they are such a joy to drive. My first car was a 68 Monza 4-spd. :-)
they're underrated for sure. They're not sports cars or performance cars in my opinion, but they drive fantastic and are quite usable and enjoyable. thanks for watching.
Hello Ed, I love to see those classics on the road. Well done! ✌
I'm very happy to have this one back running again. It's a great car to drive. Thanks for watching, as always.
I run mine with the valve cover off to make sure the pushrods are oiling and spinning properly because i have had those holes clog/restrict during use and a non-spinner can indicate a bent rod or bad lifter.
Good thinking.
If you value you heads than you need the bottom tin and thermostats/damper doors. The danger is running the engine at high power for an extended time, such as going up a long hill or mountain pass. Now you usually are going DOWN the other side. Your car is traveling the same speed going down as it was going up and speed is what determines the fan RPM. The fan is running the same speed going down the hill at 10% throttle as it was going up the hill at 80% throttle. You heads were likely over 320 degrees at the top of the hill and if you don't have the bottom tin, thermostats and damper doors it will be cooled by over 200 degrees in less than 5 minutes. That's thermal shock that will knock your valve seats out in record time! If you never drive down hills maybe you can do without the "bottom tin" but I don't really think that's possible. The goal is to keep you engine head temperature as stable as possible. Large and rapid changes in head temperature is the enemy.
I agree with this 100%. I didn't get into it too much in the video, because I know there are varying opinions. I always run lower shrouds and have never had any issues. That's why I mentioned the even cooling. If I'm out for a long drive in the fall and it's cool outside but my engine is warm, I want it to cool evenly and not shock. I also let Corvairs idle and stabalize for a few minutes after getting off the highway to let them cool via the fan, prior to shutting them off. I think this is common practice with most seasoned Corvair owners. Thanks for your comment, it explains it well.
Is this opinion or is there data to back it up?
I wonder how the oil from the pushrod can flow up against gravity to reach the rocker arm bushing and the valve stem.
there isn't really any up, it's a flat engine. The lifters push the oil in the push rod tube as far as I understand. The real failure was the cam gear.
Looks like a standard GM rocker. Can you get roller rockers?
@@amazoidal - Looks like a SBC roller rocker could fit.
EDIT: A roller rocker like T&D has internal oil channels that allow the oil to flow up against gravity to reach the roller bearing and the valve stem.
I was waiting for this episode! So did the cam gear fail due to debris from the rocker arm assembly passing through it? Or was there a backlash issue when assembled? Too bad whoever previously rebuilt it, did not pay attention to what they were doing. Any engine assembled with gobs of silicone, is going to contain issues... Another question. Where does your Pertronix get its power from? The positive terminal of the coil (via the resistor wire), or a dedicated 12 volt source? And what coil are you using??? Thanks.
Cam gear failed because we believe there was a slight bend in the crank shaft that caused some odd wear. It was a new cam gear that failed. My pertronix presently is getting power from the resistor wire. I run a flame thrower coil. I usually do not prefer pertronix, especially in PG cars. I prefer to use an XR700 from Crane/F.A.S.T. and I have had great success with those. I have that in my '64 and many other previous cars. However, this car had pertronix on it, is a manual trans and I have had no issues with voltage cut out like I get on PG with low idle in drive. I hope that helps.
Thanks for your reply. My '66 140 Monza PG had a variety of running problems and I installed a Pertronix 1 through part of the troubleshooting process. Later I removed it and went back to points and eventually discovered a failing fuel pump was the primary running problems. Mulling over reinstalling the Pertronix again. Did not have stalling issues when it was on before, and powered it at different times via the resistor wire or a dedicated 12 volt source without noticeable difference. Going to get a new wiring harness from Clark's so thinking about my wiring options...@@SlowCarFix
Do you have a recording how the rockerarm squeak sounds?
Does it sound similar to a bad Alternator bearing?
I did not record it, I really don't want to hear that sound again. To me it sounds different. This was a high squeak and distinctly from the bottom side.
Ed- I noticed you have a “Slow Car Fix” window sticker on the rear window of the station wagon wall art. Do you sell them? I would be interested in advertising your channel. If yes, please let me know the cost?
I have some. Send me an email slowcarfix@outlook.com