[firemn131]

Posting everywhere to find a fix.

The pivot arm has a washer, oring, c-clip stack up, that according to the PET it shows the following stack -up.



from the stud out

O-ring

O-ring

Washer

Pivot arm

Washer

C-Clip.



The stack up makes it impossible to get the final washer and following C-clip on.

My model year is a 92. The only PET I can find is a 95.



Anyone have a fix? with results.

I could eliminate one of the o-rings, but wanted to get feedback first.



Thnx



John

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[flash]

no way they want 2 o-rings stacked up on top of each other.



likely it is:



washer

o-ring

pivot arm

o-ring

washer

clip

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[firemn131]

yea. thats what I am thinking, to seal grease in.

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[firemn131]

Tried the with washers then o-rings against assembly. still no room to install last washer and C-clip.



Somethin's gotta give.



J

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[flash]

snap me a pic of the post and the arm. i need to refresh my memory

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[JWahlsten]

Are you talking about the pivot arm for the timing belt tensioner? The o-rings slot into grooves on the shaft. One fore and one aft on the shaft.

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[flash]

that's sort of how i remember it. a washer on each side of the arm, and the o-rings in between

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[firemn131]

I will try to get pix in a bit, The stud has a decreased diameter in the center of it. That would place the orings in the middle if the assembly. It would not provide any sealing capability for the grease, Just maybe some resistance to steady the arm. On another forum it was suggested to not use the Orings. Given the frequency of belt changes, that may be the option.





Thnx

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[flash]

it would not need sealing.



try using some silicone grease. that is what is typically used on o-rings

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[JWahlsten]

Please shoot a picture of the stud you're trying to put the o-rings on. Mine has a taper in the middle, but two grooves machined in it for the o-rings themselves. So, the o-rings actually ride inside the pivoting arm, and should not keep it from sliding on all the way.

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[flash]

that's how the PET shows it too. they just put the o-rings together on the diagram, out of sequence with the back washer

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[firemn131]

here is the stud.



No individual grooves. just the center valley.

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[JWahlsten]

This is the stud I think we're discussing.



You beat me to it... Mine has o-ring grooves and yours does not. I would not use them in your case. Lube and go.



   

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[firemn131]

Thats the one! A model year upgrade. I think the next time I am in here I will change out. But, now that I am thinking about it I may just order the newer one.

Thnx so much for taking the time.



John

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[flash]

i'm pretty sure the o-rings are there to center the arm on the post, to alleviate wear on one side of the post. i think the worst thing that can happen is you wear on the post unevenly, which means you have to change it out later (likely much later).

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[firemn131]

The part number in pet list same part number for the same item number 2x. One has a -94 not and the other has a 95- note.

Price is 50.00. I think I will move on with what I have.



thnx

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[JWahlsten]

I think you'd wear it out some time in the next millennium, so good call...

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[firemn131]

Ok, don't know if anyone will chime in, I hope so.

Putting the front of engine back together after a long wait. in reference to the above post for the pivot arm. I have determined that the MY 92 does not have o-rings.

As I am installing I have

1. a shim

2. the arm assembly

3.  C clip washer.

That is it. No room to install a shim on the outer surface beneath the clip.

 

Has anyone got any feedback. It just doesn't feel right to have the clip directly against the pivot assembly.

 

I received this car in boxes UN-assembled.

 

I may just tear it back down and buy the newer stud with o-rings. But don't really want to spend more on this project. I have my 928 that is calling also.

 

All advise is appreciated.

 

Thnx.

 

John

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[Bulti]

Hi John, I believe there should be 2 shims and one circlip. I also have the old style pivot thing.

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[P38Light]

Just got mine off this morning. After the clip came off I removed one shim, then slipped the tensioner arm off, saw two O-rings, one in a groove near the outermost end of the pivot shaft and another very close to the back shoulder on the innermost end of the pivot shaft . I only had one shim, not two as shown on PET, but don't see much room for an inner shim. Also saw evidence of lube left on the post (my guess is the O-rings contain the lube on the shaft and the reduced ID section on the shaft  forms a small resivoir for lube.

 

To my knowledge this is the second timing belt replacement from new at 65k miles (I had belts done when I bought the car in 2003 with 44k mi).When I found only one shim, I assumed the mechanic in 2003 had lost one of them (a pox on his house), but after reading this forum, this may be another difference between original design and actual factory assembly (like the extra idle roller) (hold the pox until further notice). I have ordered an additional shim and two O-rings from Pelican (always to replace O-rings WYIT), but am considering reassembling current parts just to get on with it.

 

Does anyone know what lube should go on the shaft? I was cosnidering good ole bearing grease.

 

Should I go with current parts or wait a week until the new ones arrive??

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