To Anyone Using A Shell Cam

[pa-powerstroke]

Planning on running a shell #1 cam in my bike, with the lift they are advertised at (I believe .405) Could you use standard valve stem seals or did you have to use the ones from Mikesxs that are supposed to be X amount shorter than stock?

 

[DirtyErnie]

I'm using standard seals, not seeing any problems. Pulls like hell, too.

 

[pa-powerstroke]

I'm using standard seals, not seeing any problems. Pulls like hell, too.

Sweet! Is yours stock displacement? I'm planning on a 700 and ported head. I'm hoping it screams

 

[scabber]

The cam will make all the power you need. With some good valve springs 8300 rpm is red line for the cam. If your motor can handle it. Works great with 750 cc should do the same with 700 cc.

 

[grizld1]

Right, OE valve guide seals are fine with the Shell #1. OE valve springs, however, are not fine with that cam, no matter what Joe Minton had to say to the contrary; I had to find that out the hard way by cupping an intake valve after very few miles. Rule of thumb on old magazine tech articles: Believe anything written by Gordon Jennings. Take anything written by Minton with a kilo of salt.

 

[pa-powerstroke]

Right, OE valve guide seals are fine with the Shell #1. OE valve springs, however, are not fine with that cam, no matter what Joe Minton had to say to the contrary; I had to find that out the hard way by cupping an intake valve after very few miles. Rule of thumb on old magazine tech articles: Believe anything written by Gordon Jennings. Take anything written by Minton with a kilo of salt.

I think im going with rd valve springs in this setup. I wana keep this build running for at least as long as its taking me to build it....2 years so far haha

 

[scabber]

The RD springs are a good choice. I bought the cam and springs from Hoos racing.

 

[racerdave]

The RD springs are a good choice. I bought the cam and springs from Hoos racing.

Although I gave up on my 650 tracker project, all my research told me that is the way to go.

 

[jbenedict]

Here's a link to 650 Central about replacing the seals without taking the engine out of the frame. I think this is posted somewhere here, too.

http://www.650central.com/smoking_due_to_worn_valve_seals.htm

Is there a trick for replacing the springs without taking the engine out of the frame?

 

[pa-powerstroke]

Here's a link to 650 Central about replacing the seals without taking the engine out of the frame. I think this is posted somewhere here, too.

http://www.650central.com/smoking_due_to_worn_valve_seals.htm

Is there a trick for replacing the springs without taking the engine out of the frame?

Link will be good to save for later down the road. Engines already out tho, doing the whole top end