CALLING ENGINE GUYS/GALS
Hi Folks
Started looking at the matching 340 that came with my '71 Demon (stock bore on a stand). Seller told me that it was freshened up but never ran. For ***** and Giggles I decided to do a leak down check on it. Yikes......I was at 70% leakdown with most of the pressure escaping into the block, with a little escaping out of the intake ports.
The test was done with the respective pistons at TDC and the push rods removed.
I pulled a head expecting to see total ****, but everything looked pretty good. The pistons and cylinders were cleaned up nice(ridge removed and de-glazed with cross hatch pattern). As well, the heads looked like they were freshened as well (clean combustion chambers, decent looking seats, knurled guides, and new seals).
So I guess my question is......Are my numbers indicative of what to expect after the engine is run for a bit, or does running it seat everything together. I assume that if the seller pulled it apart, new rigs would have went in, but you know what assuming gets you........
What are your thoughts folks???
Hi Folks
Started looking at the matching 340 that came with my '71 Demon (stock bore on a stand). Seller told me that it was freshened up but never ran. For ***** and Giggles I decided to do a leak down check on it. Yikes......I was at 70% leakdown with most of the pressure escaping into the block, with a little escaping out of the intake ports.
The test was done with the respective pistons at TDC and the push rods removed.
I pulled a head expecting to see total ****, but everything looked pretty good. The pistons and cylinders were cleaned up nice(ridge removed and de-glazed with cross hatch pattern). As well, the heads looked like they were freshened as well (clean combustion chambers, decent looking seats, knurled guides, and new seals).
So I guess my question is......Are my numbers indicative of what to expect after the engine is run for a bit, or does running it seat everything together. I assume that if the seller pulled it apart, new rigs would have went in, but you know what assuming gets you........
What are your thoughts folks???