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Injector Question

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TechMOGogy
Posts: 3216

Injector Question

Post#1 » Mon May 11, 2020 3:17 pm

One of my injectors seems to be leaking.
I think it is at the mid body seam.
Can I just remove, take apart and clean or would it need to be re pop-tested?
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PUCH IT: 72 Haflinger Pathfinder - 75 Pinzgauer 710M 2.7i - 96 Puch 350GDT Worker

Allen
Posts: 54
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Re: Injector Question

Post#2 » Mon May 11, 2020 3:29 pm

Hey Dan

They don't normally just spring leaks, it may be dribbling down from the return line. If that line is OK, it's perfectly OK to pull that injector apart and lap the mating surfaces on some 2000 grit with oil and torque the halves to 55ft lb iirc. New heat shield required for reinstall
Allen K - gelandelocks on IG
I fix G's, among other things.
www.artisanmotor.com
Lakemoor, IL

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vadimivanovich
Posts: 8243

Re: Injector Question

Post#3 » Mon May 11, 2020 4:02 pm

Well said. Surgical cleanliness is required.
"The way you think is the way you live"

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TechMOGogy
Posts: 3216

Re: Injector Question

Post#4 » Mon May 11, 2020 4:34 pm

Thanks Allen!
I will replace the return line first.
PUCH IT: 72 Haflinger Pathfinder - 75 Pinzgauer 710M 2.7i - 96 Puch 350GDT Worker

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TechMOGogy
Posts: 3216

Re: Injector Question

Post#5 » Mon May 11, 2020 5:48 pm

vadimivanovich wrote:Well said. Surgical cleanliness is required.

If I get to that stage, I have a mask :mrgreen:
PUCH IT: 72 Haflinger Pathfinder - 75 Pinzgauer 710M 2.7i - 96 Puch 350GDT Worker

NorwayW461 240gd
Posts: 418
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Re: Injector Question

Post#6 » Mon May 11, 2020 7:31 pm

I saw what allen just mentioned with mine, it drips down and pools on top of the little shelf when the return line leaked. the old MB mechanic I watched assess it wiped it off with a rag clean and dry to see where it was coming from. Now I did have a set of injectors rebuilt and one was not fully torqued on rebuild and did leak a little. we just re-lapped and re-torqued. I am lucky to have an old Yoda of mechanical injection down the road, he has been working on these for a long time, and seems to live with a permanent coat of diesel on his extremities.
Do things that are hard, and your life will be easy. Do things that are easy and your life will be hard.
-thad in idaho. '04 G500+'81 lwb 240gd

efg123
Posts: 110

Re: Injector Question

Post#7 » Tue May 12, 2020 4:48 am

I like to clean well then put baby powder on and run. Shows where the leak begins and it is often not where I thought.

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TechMOGogy
Posts: 3216

Re: Injector Question

Post#8 » Tue May 12, 2020 6:24 pm

efg123 wrote:I like to clean well then put baby powder on and run. Shows where the leak begins and it is often not where I thought.


Great idea!
PUCH IT: 72 Haflinger Pathfinder - 75 Pinzgauer 710M 2.7i - 96 Puch 350GDT Worker

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TechMOGogy
Posts: 3216

Re: Injector Question

Post#9 » Thu May 28, 2020 7:23 am

Lines replaced and it seems the issue is solved.
Purchased enough to do it again in a couple years.
Thanks for the help and wisdom
PUCH IT: 72 Haflinger Pathfinder - 75 Pinzgauer 710M 2.7i - 96 Puch 350GDT Worker

petrusar2000
Posts: 121

Re: Injector Question

Post#10 » Thu May 28, 2020 1:46 pm

hi where do i buy the return lines?

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