Advice needed

[WillWagner]

I'd like to know if this has happened to any one here and if so, what you did.

We pulled an M1009 off of the display line at the Museum yesterday to put seats back in it and do some GP card testing. The truck hadn't been started since 2004. The record book shows that it wasn't charging, perry and fuel stabilizer were installed.

We batteried it up, did the pre start checks, all were good, and hit the key. GP card works...light on/off and solenoid clicks even though it was 80 degrees, hit the starter and it fred like it was run 20 minuits prior...except for a ticker in the left bank. Did a manual O/P check, 20 at idle and 50 or so just off idle. Used a stethascope and found the noise around the 1/3 cylinder area. The hoiseis high, not down low and is "tinny". Like a gasser that has a collapsed lifter. We let it run a bit thinking that the lifter would pump up, but after repeated run and shut down cycles, it is the same. Anyone run into this type of issue before?

 

[Westech]

I have see lifters take a dump if the engine has sat for many years. If it will come back to life you will need to drive it and get the oil temp up so it can flow in to the lifter. If it is clogged hot oil and good RPM might pump it back up.

 

[67_C-30]

Crank it back up, and bleed the injector line on the suspect cylinder(s). If air gets trapped at the injector, they sound just like a lifter tap. I've seen them do this when they have sat for a while. It could be a collasped lifter, but it is not highly likely.

 

[m16ty]

Does the 6.2 have hyd lifters? I've never seen a diesel that did but I've never been inside a 6.2.

 

[OL AG '89]

Sounds like a weak lifter, sitting for that long with lifter compressed is not real good. Any time I have stored a vehicle for a long time, I have been instructed to crank off the rockers to relieve pressure on the lifters.
This presumes the diesel has hydraulic lifters.

 

[WillWagner]

Not a fuel issue, it is smooth, just a bad ticker topside. We let it warm and cool a bit then re start multiple times and it sounded like it actually got worse. I don't think it's a valve spring, they make a different noise all together and there would be a popping in in the intake or exhaust. Think ATF in the oil might work? It it too smoth to be a piston/cylinder issue and the smoke goes away after it warms.

Thanks for the advice everyone.

Will

 

[67_C-30]

Does the 6.2 have hyd lifters? I've never seen a diesel that did but I've never been inside a 6.2.

Yes, the 6.2/6.5 has hydraulic lifters, as do the 6.9/7.3 Internationals in Fords. Most diesels do have mechanical lifters, though.

It could be a lifter, but I'd still try to bleed the injectors near where the noise is coming from. Air in an injector is very common when these engines have been sitting, whereas collasped lifters are not. I've bought trucks with these engines that have sat many years, and have never had one with a lifter noise, but I've had a few with injector noise. I've never heard of any people having lifter problems with the Hummer take-outs. It's free and easy to bleed the injetors, and I'd at least try that first.

 

[Westech]

ATF will work, it is really a light motor oil with lots of goodies. Diesel or kerosene works also.

 

[67_C-30]

This was an injector knock. No skipping, bucking, or jumping, just tapping.

[media]http://www.youtube.com/watch?v=YCvj7S5kN1k&feature=related[/media]

 

[67_C-30]

Another. Does your noise sound similiar to this?

[media]http://www.youtube.com/watch?v=orbbourGCOQ&NR=1[/media]

 

[67_C-30]

ATF will work, it is really a light motor oil with lots of goodies. Diesel or kerosene works also.

Ditto on the kerosene or diesel, but ATF has changed in last few years. Todays ATF has so many different friction modifiers etc that isn't good for a injection pump. They've took the zinc out of our oil, the sulphur out of our diesel, flammabilty out of our WD-40 and totally ruined our gasoline, ATF, and most chemicals thatr used to work well. Good 'ol innovation. We're really moving forward now! I wanna get friendly with a tree just thinking about it...