M170 leaking oil / gas from fuel pump area
Posted: Sat Dec 02, 2006 11:09 am
I got my M170 running again after installing a take-out coil supplied by John Bizal at Midwest Military (Thanks John!).
It cranked up, but in an ugly way.
Seemed like it was firing on 1 or 2 cylinders and burning oil. Normally, it will run on all cylinders, burn oil for 5 minutes and then be OK.
Today, it ran really rough. I ran it for about 10 minutes, and when I got out, there was a puddle of fuel and oil under the engine. It all looked like it was coming from the lower 1/2 of the fuel pump. There is a buildup of grease and oil on the headpipe, too. First time I noticed this as well.
****UPDATE****
I changed the oil. There were around 8 quarts of oil in the rig!!! No wonder it was burning oil and leaking!
Did a compression test on the four cylinders and got the following reads:
#1: 120psi
#2: 110psi
#3: 110psi
#4: 90psi
Double checked all the head studs for 65# torque and they were A-OK.
Put in 4.5 quarts of fresh 10w30 and rechecked the condenser point gap. Adjusted the timing a little and the rough running stopped.
I am going to check the valves and also the head gasket to see if that can explain the drop on #4.
Still runs kind of weakly. When I hit the gas, it takes a couple of seconds for the engine to catch up.
It cranked up, but in an ugly way.
Seemed like it was firing on 1 or 2 cylinders and burning oil. Normally, it will run on all cylinders, burn oil for 5 minutes and then be OK.
Today, it ran really rough. I ran it for about 10 minutes, and when I got out, there was a puddle of fuel and oil under the engine. It all looked like it was coming from the lower 1/2 of the fuel pump. There is a buildup of grease and oil on the headpipe, too. First time I noticed this as well.
****UPDATE****
I changed the oil. There were around 8 quarts of oil in the rig!!! No wonder it was burning oil and leaking!
Did a compression test on the four cylinders and got the following reads:
#1: 120psi
#2: 110psi
#3: 110psi
#4: 90psi
Double checked all the head studs for 65# torque and they were A-OK.
Put in 4.5 quarts of fresh 10w30 and rechecked the condenser point gap. Adjusted the timing a little and the rough running stopped.
I am going to check the valves and also the head gasket to see if that can explain the drop on #4.
Still runs kind of weakly. When I hit the gas, it takes a couple of seconds for the engine to catch up.