6.2 l9h cam swap = cam dowel pin broke
#1
Staging Lane
Thread Starter
6.2 l9h cam swap = cam dowel pin broke
I finished up my vvt cam swap and on the first crank or when I torqued the cam bolt down, the cam dowel pin broke either way and bent 8 exhaust pushrods and all 8 exhaust valves.
Specs are:
Custom Pat G Cam
Comp torrington rocker bearing upgrade
Comp Hi Tech 7.4" Pushrods
VVT limiter cam Gear
BTR Valve Springs and Retainers to match the .600 lift.
I am sad...motor is out and at the machine shop now. Looking for suggestions for "while your in there" upgrades. Silica filled Exhaust Valves - are those an thing or option? Stock style pistons that don't slap as much on initial warm up?
Specs are:
Custom Pat G Cam
Comp torrington rocker bearing upgrade
Comp Hi Tech 7.4" Pushrods
VVT limiter cam Gear
BTR Valve Springs and Retainers to match the .600 lift.
I am sad...motor is out and at the machine shop now. Looking for suggestions for "while your in there" upgrades. Silica filled Exhaust Valves - are those an thing or option? Stock style pistons that don't slap as much on initial warm up?
#3
Staging Lane
Thread Starter
Since I had my problem at such a low rpm, All I bent was the pushrods. Replaced those and lapped the valves. Drilled out the cam pin, replaced it and reinstalled. All is good again. Working on the tune now.
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swathdiver (07-09-2020)
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