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I was towing the camper last Friday and the truck started shaking and was low on power. EGTs went up and the truck didn't have the power it should. I could see the shaking in the mechanical boost gauge as well. I got a P0263 code - #1 contribution.
Towed the truck back to the shop and pulled the valve cover and oil rail off figuring on an injector. The injector that is in there now was a motorcraft reman that has probably 20k on it and is 2.5 years old. When I opened it up I saw that the rocker arm was sitting lower on the valve bridge and I could see in the rocker box where the rocker arm had contacted the rocker box. Checked the pushrod and it looks straight. I am attaching a few pictures. Throughts?
I'm thinking that's my next step. Probably swap 1 and 3 injectors and see if the injector is the problem. I hate the passenger side of the motor so much. Dang heater box.
While the plastic clip holds the rocker arm in place during assembly, with the motor together the valve train stays in place due to tension from the lifter.
The bright side is its #1 cyl. so if it is just a collapsed lifter you could pull the head & swap it out for a new set with messing with the branchtube. I'd do a compression check before tear down though. This is going to come down to "how far do you want to go" scenario I think.
To check for lifter and cam height, just crank the motor by hand and measure the distance of lift, They all should be the same. I would replace the rocker assembly because of possible uneven wear and do the compression test.
To check for lifter and cam height, just crank the motor by hand and measure the distance of lift, They all should be the same. I would replace the rocker assembly because of possible uneven wear and do the compression test.
I replaced the rocker arm assembly, next up is the compression test.
Anybody have a lead on a compression test adapter?
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