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Cal-look/High Performance => Pure racing => Topic started by: 181 on January 26, 2010, 00:32:09 am



Title: "Corvair" pushrod mod and piston pin pressure oiling
Post by: 181 on January 26, 2010, 00:32:09 am
Did anybody tried Corvair pushrod mod? Corvair, a flat six cylinder, has a tiny hole in each hollow pushrod at the head end, right under the pushrod tip, to promote oiling of the rockers:

(http://home.hiwaay.net/~langford/corvair/01012822.jpg)


Title: Re: "Corvair" pushrod mod
Post by: Martin on January 26, 2010, 07:58:35 am
yep


Title: Re: "Corvair" pushrod mod
Post by: BeetleBug on January 26, 2010, 08:08:09 am
Interesting!

And does it work?

Best rgs
BB


Title: Re: "Corvair" pushrod mod
Post by: 181 on January 26, 2010, 12:33:39 pm
yep

alright and how did it work? Roller or conventional rockers?

Thanks,

Jan


Title: Re: "Corvair" pushrod mod
Post by: 181 on July 21, 2011, 09:31:31 am
and another curious question:

anybody tried piston pin pressure oiling? Small hole has to be drilled or EDMed through the length of the rod and through main bearing+piston pin bushing to deliver pressurized oil directly to the piston pin. I know Mr. Pauter offer this as extra option for his rods.

Would it be advisable to perform this mod on my H-beams?

Jan


Title: Re: "Corvair" pushrod mod
Post by: Diederick/DVK on July 21, 2011, 09:34:22 am
Jan, your photo of the first post has gone. Would care to elaborate as to what these mods entail?


Title: Re: "Corvair" pushrod mod
Post by: 181 on July 21, 2011, 09:39:08 am
one picture is worth 1000 words: I found the pic in my laptop.

(https://lh3.googleusercontent.com/-tqWP7v5v3cE/TiflemDR1fI/AAAAAAAAEtA/YJlLLN6_p7c/s576/01012822.jpg)


Title: Re: "Corvair" pushrod mod and piston pin pressure oiling
Post by: paul_f on July 21, 2011, 16:55:10 pm
Does the pushrod not rotate, so that you end up with the oil spraying the wrong direction?


Title: Re: "Corvair" pushrod mod
Post by: Zach Gomulka on July 21, 2011, 18:22:42 pm
and another curious question:

anybody tried piston pin pressure oiling? Small hole has to be drilled or EDMed through the length of the rod and through main bearing+piston pin bushing to deliver pressurized oil directly to the piston pin. I know Mr. Pauter offer this as extra option for his rods.

Would it be advisable to perform this mod on my H-beams?

Jan

I was looking at a 2.0 jetta engine last weekend that came that way from the factory. If there is enough "meat" in the rod, I think it's a good idea.


Title: Re: "Corvair" pushrod mod and piston pin pressure oiling
Post by: Airspeed on July 21, 2011, 21:24:08 pm
How cool is that!

I also thought about rotation but its probably not that critical, just helping and when all 4 have it, one is bound to spray in the right direction.
Your oil pump must have the extra capacity to pump that extra.


Title: Re: "Corvair" pushrod mod and piston pin pressure oiling
Post by: Type1/DVK on July 21, 2011, 22:14:11 pm
maybe drill it directional, and it will spray more onto the casting.. nice mod though.