Clearancing crank/cam

Synapsis · Post by **Synapsis** » Mon Feb 03, 2003 11:33 pm

I'm practicing building a 2180cc type 1 motor before I build my 2276 turbo monster. I'm up to the point where I check the rotating assembly for clearance, and everything clears except this one point. My question is: Do I take material off the rods, or off the cam? I haven't had the assembly dynamically balanced yet.

Case: AS41 from my previous 2180 engine
Crank: GEX welded/counterweighted 82mm
Rods: Reconditioned stock VW
Cam: Engle W125

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1961 VW Bug :
2276 turbo engine build in progress

1990 Camaro Iroc-Z
5.7L, 700R4, the daily
14.15 @ 97 mph

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Tue Feb 04, 2003 10:56 am

Take material from both.

The rods will need rebalancing end to end, not just overall. The clearance issues look pretty severe.

[This message has been edited by MASSIVE TYPE IV (edited 02-04-2003).]

James2 · Post by **James2** » Tue Feb 04, 2003 8:03 pm

The cam can be clearanced on a bench grinder.

Are those stroker rods or just stock rods? anyway, they need to be clearanced. Best left to a VW shop like Rimco.

joe56vw · Post by **joe56vw** » Tue Feb 04, 2003 11:23 pm

send the cam to be stroker clearence then when you balence the rods it should clearence them it should go together atfer that

Synapsis · Post by **Synapsis** » Tue Feb 04, 2003 11:38 pm

The shop that's going to balance it is going to do the clearancing also... for a fee.

Thanks guys.

speedy57tub · Post by **speedy57tub** » Wed Feb 05, 2003 2:39 pm

Clearance the rods and cam.

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Thanks, speedy57tub
(Speedying around and about "Viva Las Vegas")

TeStBuD · Post by **TeStBuD** » Sun Aug 30, 2009 6:22 pm

You can clearance the cam on a bench grinder and not have to worrie with the rods....Stock rods also have some clearance issues--Is why I use scat I-beams to help with clearance issues....The nice thing about clearanceing the cam instead of the rods is no rebalceing.....

nvlandshark · Post by **nvlandshark** » Thu Sep 10, 2009 6:19 am

With a 74 or 78 crank is there a need to clearence the cam/crank/rods ?

Thanks

Post by **sparkmaster1** » Fri Sep 11, 2009 5:39 pm

Usually not, but it depends on the rods. CB Unitech rods will clear easily. Tim

nvlandshark · Post by **nvlandshark** » Tue Sep 15, 2009 5:41 pm

the cam also? thats my main concern.

Thanks

perrib · Post by **perrib** » Wed Sep 16, 2009 10:24 am

Leave the rods alone. Five minutes with a die grinder and the cam is clearanced. Bench grinder and lath take longer My Weber and Rimco stroker rods did not need the cam to be clearanced. I installed Rev Master I beams and it needed quite a bit. The stock rod bolts and nuts might be a weak point. At this point it would be worth the money to get a set of CB H beam rods. Once you subtract the price of the ARP 200 bolts from the price they are the same price as the Unitechs.