Author Topic: Help removing Injectors from M189.986 engine....  (Read 3065 times)

scoot

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Help removing Injectors from M189.986 engine....
« on: June 20, 2015, 16:31:16 »
I'm having a little problem removing the injectors for cleaning from my W112.015.   I have removed the center allen bolt and the retaining block.  At that point I can move the injectors around but the will only come out a little and are clearly hitting on things.  So I removed the two allen bolts on either side of the block in which the injectors are resting.  Now the block and the injectors move more freely, but I still don't have enough clearance to remove them.  My best guess is that now I should remove the valve cover, since that is where everything is hitting.   Is that correct?  Or am I doing this all wrong...

thanks
Scott
Scott Allen
'67 250 SL (early)
Altadena, California

scoot

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Re: Help removing Injectors from M189.986 engine....
« Reply #1 on: June 20, 2015, 17:18:50 »
Got one out with more wiggling.  As with the intake manifold, it's really dirty.
Scott Allen
'67 250 SL (early)
Altadena, California

Benz Dr.

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Re: Help removing Injectors from M189.986 engine....
« Reply #2 on: June 21, 2015, 01:54:43 »
I have NOS just in case you need any. They should pull out without to much effort.
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

scoot

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Re: Help removing Injectors from M189.986 engine....
« Reply #3 on: June 21, 2015, 02:05:39 »
Hi Dan !!!!

I managed to get them all out and cleaned and all of them properly "chirp".  The biggest problem I had was getting them to not leak on the test bench where the pressure line connects to the injector. 

I'm afraid to ask how much a new injector is...   I believe that MSRP is around $3000.

Thanks
Scott
ps - the bakelite parts that hold them in - two of mine are cracked and one is replaced with an aluminum block (which looks quite effective).  Thoughts?

Scott
Scott Allen
'67 250 SL (early)
Altadena, California