compression test question

Post by **eliterit** » Tue Mar 23, 2004 9:52 am

i had done a compression test today, but every 10A fuse i pulled never shut off the fuel pump. I just did a sohc to dohc swap. Anyideas???i ended up doing the compression test with just the coil wire unplugged and i got 177,172,175,171... are these no good readings since there was still fuel pressure?

Post by **navysnail** » Tue Mar 23, 2004 9:52 am

i dont think fuel affects pressure, its just for safety for equipment and you.

Website · Post by **daniel240** » Tue Mar 23, 2004 9:52 am

those are good numbers

Website · Post by **TurboKA37** » Tue Mar 23, 2004 9:52 am

what tool is needed for a compression test and how much do they cost? i need to do a compression test soon before i start on my turbo set up

Post by **navysnail** » Tue Mar 23, 2004 9:52 am

you need a compression tester and a socket to fit the spark plugs to remove them. make sure the battery is fully charged, wide open throttle, and all plugs are out. lable the plug wires before removal so you dont get them mixed up.

Website · Post by **TurboKA37** » Tue Mar 23, 2004 9:52 am

cost of the tester? i imagine it cant be much more than a pressure gauge

Post by **eliterit** » Tue Mar 23, 2004 9:52 am

i got a compression tester for less than 20 bucks at harbor freight

Website · Post by **TurboKA37** » Tue Mar 23, 2004 9:52 am

thanks

compression test question

compression test question

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