Join Date: Aug 1998
Location: Waldorf Md. USA
I have to agree with John, except that I have seen one case of not enough pin clearance from the factory on a set of TRW forged pistons. The locked up after about 10 minutes just like yours. Did you install the pistons on the rods ?? If so how did you do it. The only correct way is to use a rod heater to heat up the end of the rods so that they will expand and the pin will slide through. What I always do before the rods cool off totally is to apply a good assembly lube (I use Melling cam lube) to the pins. The heat tends to suck it into the pin bore...sort of like sweat soldering plumbing pipe. We do this on every set of pistons we install and have never had a failure. If you had a machine shop install the pistons, they probably would have noticed it if the pins were tight in the pistons. The pins only get lubricated by splashing oil when they first start, so it is very important to lube them properly when assembling.
Hopefully all it hurt was the pistons and pins.
Hope this helps,
Advanced Automotive Machine