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Author Topic:   1.6 rockers binding
dm3
Dirt Full Roller

Total posts: 40
posted March 24, 2005 11:19 AM  
A friend of mine tried to put 1.6 rockers on a hobby stock and said the pushrods bound up. I have run 1.6 rockers before and never had any such problems. He was running stock heads, stock hyd. cam and most likely stock springs. I'm trying to figure out if it was pushrods or valve springs binding. Would 1.6 rockers cause pushrods to bind? Thanks.

Istock66
unregistered Total posts: 40
posted March 24, 2005 02:18 PM           send a private message to dm3   Edit/Delete Message   Reply w/QuoteBBBBBB
the slot in the head the pushrod goes thru is a factory guide. It must be elongated for 1.6 rockers. If useing guide plates its just drilled out round.

beachracing
Dirt Forum Racer

Total posts: 94
posted March 24, 2005 03:54 PM  
You might also think of valve length. Get a pushrod gauge, at a racing parts store. Check if it has proper alignment, and in cases where 1.6 are used, check to make sure there is no coil bind.

Winland Racing
Dirt Maniac

Total posts: 122
posted March 25, 2005 07:34 PM  
When you say binding are you also referring to bending? I had bent a few pushrods when I changed to 1.6 rockers. I had to have the machine shop elongate the holes in the heads. They used a tool called a louis tool. Its about 30 dollars.
WR#66

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