1989 F-350 7.3l idi NEED HELP!!!

[smokin90]

Im working on a 1989 7.3l and i went to check the blow by and when i took the oil cap off a strang noise is coming out of it. it sounds like a high piched clanging noise and you can hear it in the exhaust as like a tinging what do you all think

 

[argve]

do you hear a chuffing sound from the exhaust like air rushing past something???? If so check the valves for valve guide wear.... it's a common thing on these IDI's that the valve guides wear allowing the valves to tip and if let go - the head of the valve comes off - then it's new engine time.

 

[towtruckdave]

Totally normal sound.

 

[smokin90]

ok ill take note of that im going to try and take a video of it and put it on here

Totally normal sound.

well i went to my truck to see if it made that noise and No it doesnt so thats why im on hear asking

 

[redneckaggie]

I would say valve problem as well although a little noise out of the oil fill cap can be gear lash. but out the exhaust.....

 

[smokin90]

ok thanks and another thing about it when you rev it up or just snap the throttle and then let it come back to idle it will shut off or bog way down and i just changed the fuel filter

 

[hesutton]

ok thanks and another thing about it when you rev it up or just snap the throttle and then let it come back to idle it will shut off or bog way down and i just changed the fuel filter

The metering valve in the IP is sticking. It may get better with a healthy dose of fuel lube, it may not. Either way, it is a sign that the IP is long in the tooth and will need replacement in the not too distant future.

Heath

 

[smokin90]

what brand fuel lube would you use and where can you get another IP for it and how much

 

[hesutton]

what brand fuel lube would you use and where can you get another IP for it and how much

Howes and Power Service are available at any truck stop or autoparts store. As far as an IP, Mel (Agnem is his handle hear) can get you a quality rebuilt for a reasonable price. You can get an OK rebuilt other places, but remember, you get what you pay for. If you are going to replace the IP, I'd replace the injectors and return lines/caps/orings at the same time.

Heath

 

[icanfixall]

X2 on the above posting...

 

[smokin90]

ok what kind of injectors would you get and how do you time it when you put it on

 

[jonathan]

100000 miles is about how long they last. i would do the ip and the injectors at the same time. most of us like bb injectors

 

[smokin90]

ok thanks everyone that has helped im going to try and get this video on soon

 

[bike-maker]

Mine had the sticking metering valve issue. In my case it was because (I think) the motor sat for 1.5 years without running. It cleared up by raising the idle a little, a double dose of Diesel Kleen, and running the hell out of it. But I am aware that I am probably on borrowed time with my IP.

 

[smokin90]

ok thanks this truck has been sitting sence 2009 i think thats what hes going to do just drive it