iso question

Are these #22 definitely the same part? front and back? ...because I got my 2nd iso assembly today, and the #22 adjuster will not screw on this one either. I'm getting frustrated.

Can you measure the threads on both the iso and the adjuster?

I have no way to measure a thread that wide

Where'd you get the parts from? I'm wondering if there is more than one manufacturer of the MKIII isos and they have different threads. I only say that because I've seen different adjustment specs from vendors. There's also a possibility that threads have changed over the years and new adjusters are not compatible with old shafts. That happened with the camshaft threaded hole for example - it was 26 tpi in the old days and new cams are 28 tpi (the factory oil seal guide tool no longer fits!).

Rear Iso






I can go measure the front too.



These are all off a MkIII, not aftermarket.

Let me know if this helps.

thanks, the threads are the wrong size. Gonna try assembly 3 on wed or thurs

pelican said:

thanks, the threads are the wrong size. Gonna try assembly 3 on wed or thurs

Click to expand...

And you got these from Old Britts? I would have asked them to measure the threads before shipping the second set.

Yeah, I explained how the adj wouldn't fit, and apparently their whole stock was like that. 3rd times a charm! They sent out a corrected replacement today.


Also I had emailed AN and they said it's best to fit the new assemblies dry...without any type of grease