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Old 06-15-2007, 07:36 AM
Hit Man X's Avatar
Join Date: Sep 2004
Posts: 9,087
Thumbs up M103 timing pointer?

Appears this lil pointer that points the the marks on my tensioner is missing. Is that small part available or will I have to scour the yards to find one?

I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

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Old 06-15-2007, 10:01 AM
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Join Date: Dec 2000
Location: AL
Posts: 1,219
Forget the pointer. Adjust it by feel like you would on most cars. I haven't used or even had a pointer for years.
2012 E350
2006 Callaway SC560
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Old 06-15-2007, 01:00 PM
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Join Date: Dec 2004
Location: Eugene, OR, USA
Posts: 121
Tensioner pointer missing

I recently had the water pump replaced in my '86 300E. The job was done at an indy shop. The owner is a 30 yr MB mechanic but he has a young guy working for him. I don't think the young guy is much of a mechanic on the older MBs. He reinstalled the tensioner pointer so that it was buried all the way to the left (facing the engine) so you could barely find it. I repositioned it back down but I don't think it is working right.

I went back to the shop and the owner simply said to test the belt tension by feel. I wasn't too happy but didn't push the issue. I guess I'll use the manual tensioning test from now on.

P.S. I also found that one of the bolts on the power steering pumps had not been tightened after that job. It was very loose. I would be reluctant to go back to that shop.

1986 300E
1993 Volvo 940 Wagon
1984 Volvo 240 (daughter's)
1976 Dodge 1/2T pickup, gas hog
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