piston to valve clearance check??????
#1
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piston to valve clearance check??????
Does anyone know how to do a piston to valve clearance check, if you don't have a solid lifter or lighter spring??? Any help would be appreciated.
#2
Re: piston to valve clearance check??????
all I did was put playdo (CLAY) on the piston, put the head on (no gasket) put a few bolts in, install the intake/exhaust rockers, pushrods, and hand turn the motor over twice, being very carefull. Take the heads of, and look at the clay. I have a digital micrometer, i measured the deepest indention in the clay and added .53 for the head gasket. Does this help at all?
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Re: piston to valve clearance check??????
so I take it you had no problem at all? That does help to know that it will still work? Did you do anything w/the lifters at all??? Thanks again!!!
#4
Re: piston to valve clearance check??????
Ya I had a problem, as soon as i looked at the clay, I saw a fine (HAIRLINE) scratch on the piston I had to exchange my 5.7's for SII 5.3's
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Re: piston to valve clearance check??????
What type of cam and rockers were you running? What were the heads decked at? Valve sizes? The reason that I'm asking is because I have some heads that are decked .040. W/ 2.02 and 1.6 valves, crane 1.8 rockers, and the ASA cam. W/ 525/525 lift and 226/236 duration. I've been told that I will have no problems but I want to make sure that I wont. Thanks
#6
Re: piston to valve clearance check??????
What type of cam and rockers were you running? What were the heads decked at? Valve sizes? The reason that I'm asking is because I have some heads that are decked .040. W/ 2.02 and 1.6 valves, crane 1.8 rockers, and the ASA cam. W/ 525/525 lift and 226/236 duration. I've been told that I will have no problems but I want to make sure that I wont. Thanks
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Re: piston to valve clearance check??????
Cometic sells thicker-than-stock gaskets if you like or you can flycut the pistons...
...i think thunder racing rents a seatless head with a cutter for this exact purpose...
...i think thunder racing rents a seatless head with a cutter for this exact purpose...