Pushrod clearance

Monday, 03-Jul-2000 16:28:10

Message:

209.156.220.190 writes:

I am running a FK8 cam, 1.4 ratio rockers, Scat chromoly pushrods, and Auto Craft adjustable pushrod tubes. During the

cam rotation it looks like the pushrods are either touching the tubes or they are coming vary close. Should I be concerned

and if so what is the cure. Should I have had the pushrods tappered or should I have used different pushrod tubes?

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Replies:

Re: Use Vanagon pushrod tubes (n/t) (max, Der Bahnstormerz) (03-Jul-2000 16:41:06)

Re: Pushrod clearance (Gary Cooper) (03-Jul-2000 22:27:15)

Re: Same thing happened to me and I junked the Autocraft tubes in favor of ERCO ones. (Jim Ratto) (04-Jul-2000 00:05:00)

Re: Pushrod clearance (Me) (04-Jul-2000 14:08:38)

Re: I think he advertizes in Hot VWs (ERCO) or call Rancho transaxels for the number. (n/t) (Mark H) (04-Jul-2000 23:42:01)

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Re: Pushrod clearance

Monday, 03-Jul-2000 22:27:15

207.172.81.121 writes:

Any rubbing of pushrod sould be a concern for something is not just right(ex:when heads were installed to help prevent

this tubes must be centered toward the rocker stand as much as possible).you might want to check alignment of your

rockers to your valve centers and make sure they are not offset to much if any (I center rockers over valves to reduce

guide wear, I mean we are running lash cap anyway,right?). Other than that the pushrods are much harder than the tubes

so a little metalic look in your oil?

Gary Cooper

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e: Same thing happened to me and I junked the Autocraft tubes in favor of ERCO ones.

Tuesday, 04-Jul-2000 00:05:00

152.163.195.198 writes:

I tried many different setups.....CB flared tubes, stock, Waterboxer, adj Waterboxer ($$$$!!!), Autocraft....

The adj Waterboxers did pretty well, I had to shim the seals up to work. The ERCO's however....they work perfectly.

And they don't get pinholes and leak like stock ones!

Jim Ratto

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Re: NO! Swivel feet are designed to be used with stock configuration rockers. Wednesday, 05-Jul-2000 13:18:12 205.188.199.145 writes: Scat 1.4s have a cup screw at the pushrod end of the rocker to accept the ball end of the pushrod. Swivel feet have a flat contact surface, designed to contact the flat stem stem end. Pushrod interference can be a problem with some high ratio rockers, especially on aftermarket heads. I tried many different tubes, and found the ERCO sprung aluminum 2-piece to work best. NO LEAKS and plenty of room. have a nice day, Jim Ratto

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