Fuel leak injector #1 - Page 2 - PeachParts Mercedes-Benz Forum

boneheaddoctor · #16 01-20-2005, 09:42 PM

Quote:

Originally Posted by willrev

Hey yall.

I replaced all the return lines with new braided line. Fuel is not leaking from return lines or metal lines, but is STILL leaking from around bottom of first injector. Is there a seal or something around the bottom that could leak?? Please help.

Sounds like maybe someone had that injector out and put it back without a new heatshield.......................

wolf_walker · #17 01-20-2005, 10:23 PM

About all you can do is pull the injector, install new heatshield(cheap) and re-torque. Time to buy a torque wrench!

willrev · #18 01-20-2005, 10:25 PM

I have a torque wrench. It'a a cheap one, but it works. Wouldn't a digital one be cool?

wolf_walker · #19 01-21-2005, 12:18 AM

Quote:

Originally Posted by willrev

I have a torque wrench. It'a a cheap one, but it works. Wouldn't a digital one be cool?

Cool, yes, but I don't really trust them. Call me old fashioned..

You might try checking the torque on that injector, it could be a little loose.
That might also tie in with your wonky idle.

Course', if your going to pull one out, you may as well pull them all..
And have them rebuilt..
With nozzles NOT made in france or where the hell ever all the bad one's are from..

Don't ya love it?

willrev · #20 01-21-2005, 06:39 AM

I have never pulled an injector before. THat makes me a little nervous. How do I do it?

Does the heat shield cause leakage? My rough idle cleared up when I replaced the rack dampener bolt and adjusted.

wolf_walker · #21 01-21-2005, 07:15 AM

Quote:

Originally Posted by willrev

I have never pulled an injector before. THat makes me a little nervous. How do I do it?

Does the heat shield cause leakage? My rough idle cleared up when I replaced the rack dampener bolt and adjusted.

Injector comes out like a big bolt, unscrews. Need large half inch drive socket, someone else will remember what mm size it is..

boneheaddoctor · #22 01-21-2005, 08:39 AM

Heat shield are single use items...............try and use them twice and the WILL leak.

Lucky they are cheap......

Pete Burton · #23 01-21-2005, 08:50 AM

You need a 27mm deep socket - with 54mm or more of inside depth. I bought a great one locally for about $8. This is also the perfect socket for turning over the engine by hand with the crank pulley bolt. The heatshields have 2 different ID's, so get one of each (they are really cheap) so you have the correct one when you change it.

willrev · #24 01-21-2005, 12:54 PM

Pete, where did you find that socket?

By the way - before I do something stupid on an injector, you loosen it by turning it counter clockwise - correct?

I am supposing that I unhook the metal injector line and get it out of the way, then install the 27mm socket and turn counter clockwise until injector backs out completely? Then remove the heat sheild and then install new one and reverse process. How much is the proper torque to tighten the injector back into place?

wolf_walker · #25 01-21-2005, 06:14 PM

Quote:

Originally Posted by willrev

Pete, where did you find that socket?

By the way - before I do something stupid on an injector, you loosen it by turning it counter clockwise - correct?

I am supposing that I unhook the metal injector line and get it out of the way, then install the 27mm socket and turn counter clockwise until injector backs out completely? Then remove the heat sheild and then install new one and reverse process. How much is the proper torque to tighten the injector back into place?

You should probibly come borrow my OM617 FSM before you do this fun stuff..

BoostnBenz · #26 01-21-2005, 07:29 PM

Also you could visit the one referenced on the DIY page link in my sig.