6.2 diesel injection leak?

[Pookster]

Im getting an injection leak from the number 8 cylinder (closest to drivers side rear). At first I thought it was the return line that was leaking, but it looks as if the seal between the injector and the hard line has a small leak.

is there an O-ring or something in there? Or has the injector just failed, and isnt popping, so its pushing fuel out?

 

[tRustyK5]

I had three that leaked, got them all rebuilt along with the IP. No more leaks (or smoke)

I originally thought it was bad fuel return hoses, but when I got them back from accurate diesel and chucked the return lines on it and fired it up everything was dry.

Rene

 

[Pookster]

Is it better to get them all rebuilt? Or just get a set off ebay?
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7976003111&category=33554

Seems like a reasonable price. Anything else I should be aware of?

Rene, did you notice any power increase after the injectors?

 

[tRustyK5]

That's a good price. IIRC I paid $142 for Accurate diesel to rebuild my injectors, but shipping was included. I'd do all 8, the ones that aren't leaking can't be that far from doing so IMO. Plus, the spray patterns and volume of fuel would be more closely matched with 8 new ones.

Rene

 

[Pookster]

Corse thread or thin? I seem to recall some issues with older trucks using one, and newer ones using the other. Any easy way to tell without first unthreading?

 

[tRustyK5]

IIRC it was only 82 that got the coarse thread. The short body injectors were for the Vans...

Yours should be long body fine thread.

Rene

 

[Pookster]

rene, Im a little bit curious, so maybe you can explain to me:

Accurate Diesel lists it for 148, + core.

here was something interesting:

Up for bids is a set of eight professionally rebuilt fuel injectors for a 1983 to 1988 6.2l Diesel engine. These injectors have been built to OE standards and have top of the line Bosch injector nozzles. DON'T BE FOOLED MY COMPETITORS SELLING INJECTORS WITH INFERIOR INTERSTATE MCBEE NOZZLES!!!

question I have is, does it make a difference? or is it just hype?