Engine Clearances
Posted: Wed Apr 28, 2010 6:43 pm
I picked up the block, heads, and crank from the machine shop on Monday. They reground the valve seats and valves. They also found that there was a low spot in the middle of the heads. They took off 0.007" from the head surface. On the block side, they took off 0.010".
My question is regarding the tolerances. The FSM states grinding limits for both the heads & block are 0.004". Which is not much at all. Do any of you see any issues with removing what they did?
Those of you that have had the heads and block resurfaced, what was typically taken off?
Lastly, to check the valve to piston clearance, I'm assuming I need to have the pistons in the block and the cams back in the heads. Or is there another way to check those clearances without assembling everything?
I really would like to CC the heads. Do the Wiseco pistons have a listed/published volume for the dished area on the piston?
Thanks
My question is regarding the tolerances. The FSM states grinding limits for both the heads & block are 0.004". Which is not much at all. Do any of you see any issues with removing what they did?
Those of you that have had the heads and block resurfaced, what was typically taken off?
Lastly, to check the valve to piston clearance, I'm assuming I need to have the pistons in the block and the cams back in the heads. Or is there another way to check those clearances without assembling everything?
I really would like to CC the heads. Do the Wiseco pistons have a listed/published volume for the dished area on the piston?
Thanks