Offshoreonly.com - ot-truck engine diagnosis

Offshoreonly.com (https://www.offshoreonly.com/forums/)

- General Q & A (https://www.offshoreonly.com/forums/general-q-20/)

- - ot-truck engine diagnosis (https://www.offshoreonly.com/forums/general-q/78560-ot-truck-engine-diagnosis.html)

Ran a compression test this morning. Awsome numbers! No cylinder was below 130psi. The highest was close to 170psi. That's like new engine numbers. Don't forget this thing has 170,000 miles on it! :D

So I put new plugs in and started it. Still ran rough. I brought the idle up and sure enough, the miss does travel through the rpm range. I can hear it in the exhaust note, but you can't feel it. I pulled the plugs back out and #1 & 3 were fuel fouled. Black. All the other plugs were slightly dirty. One was spotless. I pulled the wire on the spotless one to make sure it was even getting fuel and was met with a nice rpm loss. I'm hoping that obnoxus is right about the fuel line. I'll tear into the motor during the week and find out.

Re: ot-truck engine diagnosis

Sadly, no. We have this loto trip coming up and it's taking all my time to get the boat ready. I havn't even had time to go to the library to look up the procedure for removing the manifold lid. Much less chase the parts down. I'm 90% sure that your guess is correct on the fuel line.