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Has anyone installed one of these PVC conversion kits to eliminate the road draft tube on their C1? The engine block end looks like a press fit rubber stopper with nothing to hold it on? Any issues with this? Not a judged car so just trying to simply operation.
Thanks,
Butch
Last edited by Dreaming60’s; Apr 10, 2019 at 09:00 AM.
The press in plug was used in '63. I think the original had a steel sleeve around the rubber. Don't remember for sure. I put the rubber plug in mine 10 years or so ago in my '63. Still there. No problem.
Made one up and running it on my '61. Pressed in grommet with a PCV valve installed in it. Runs to the baseplate of the rear carb. Much better than a road draft tube.
Yep, if you're not going for judging, minor updates makes the car much more fun to own and operate. I'm changing out my old school oil canister system for spin on too..........why not.
That setup will work fine - best to use a vented oil filler cap with it and you’ll want a 63 PS spark plug loom for the bellhousing to replace the one welded to the road draft tube.
Dang, I just ordered the correct, non-vented oil cap for a 327/340, along with this kit and some other items. Why do you say that Frankie? Will using the non-vented cap create issues?
Dang, I just ordered the correct, non-vented oil cap for a 327/340, along with this kit and some other items. Why do you say that Frankie? Will using the non-vented cap create issues?
BH
With the non-vented cap you will just vent pressure/vapor from the crankcase. no fresh air circulation.
With a vented cap, you will ventilate the crankcase with fresh air. You may also blow oil vapors all over the top of the engine. If your engine is tight, that won't be a problem.
Dang, I just ordered the correct, non-vented oil cap for a 327/340, along with this kit and some other items. Why do you say that Frankie? Will using the non-vented cap create issues?
BH
MikeM covered it. You want the system to scavenge blow-by and other corrosive and explosive combustible vapors out of the crankcase. A vented gas cap is good insurance to ensure this happens with fresh air exchange.
Last edited by Frankie the Fink; Apr 10, 2019 at 02:45 PM.
I understand and will exchange it for a vented cap. Why did the 250/300 HP cars come with vented caps and the 340/360 HP cars came with non-vented? I thought my last 300 HP car had the road draft tube, but I could be wrong and that car was so wrong in so many areas it certainly couldn't be used for a reference guide.
Why did the 250/300 HP cars come with vented caps and the 340/360 HP cars came with non-vented?
I've learned something valuable here.
BH
Because the solid lifter cars were in the habit of being run at a higher rpm with more blow by. If you have this problem, either slow down, buy a non-vented cap, or take in fresh air from the air cleaner.
That 61" PVC mod is in the ST-12 assembly manual,,, I found the correct parts in junked cars years ago, and used this system in my 56 with a 67' 283... I think most of the parts are available from Paragon (61-62 PVC California emission)
MikeM covered it. You want the system to scavenge blow-by and other corrosive and explosive combustible vapors out of the crankcase. A vented gas cap is good insurance to ensure this happens with fresh air exchange.
Frankie, I don't understand what good a vented GAS cap is going to do. Couldn't resist, LOL
PVC conversion kit
