- Joined
- Apr 8, 2015
- Messages
- 521
- Reaction score
- 66
- Location
- Upstate NY
- My Car
- 71 Mach 1, 351c 4v, C6 trans, grabber blue with white interior
At some point, I'd like to do a compression test on my 71 351c. The engine is running fine but just doing the test from a learning perspective since I've never done one prior.
So, from reading it seems the test is better when the engine is warmed. Remove the plugs and disconnect the I and S terminal on the starter solenoid. Also disconnect the coil wire at the coil. Connect a remote starter between the battery and S terminal.
The question I have is, can any damage be done to the engine while I'm cranking it over 5 or so times for 8 cylinder readings? Is oil circulating at that time and will an oil pressure be created? Since mechanical fuel pump is pumping is fuel being dumped into the cylinders during all this? Is that an issue?
So, from reading it seems the test is better when the engine is warmed. Remove the plugs and disconnect the I and S terminal on the starter solenoid. Also disconnect the coil wire at the coil. Connect a remote starter between the battery and S terminal.
The question I have is, can any damage be done to the engine while I'm cranking it over 5 or so times for 8 cylinder readings? Is oil circulating at that time and will an oil pressure be created? Since mechanical fuel pump is pumping is fuel being dumped into the cylinders during all this? Is that an issue?