View Single Post
boyt911sc boyt911sc is online now
Registered
 
Join Date: Mar 2002
Location: Philadelphia, PA
Posts: 12,680
Garage
CIS troubleshooting..........

Quote:
Originally Posted by mopydick View Post
Hi All,

I'm rebuilding a 81-83 SC WUR (warm up regulator): Bosch 0 438 140 090

Rebuild kit selection is very confusing and price differences are substantial.

And as far as I can tell, they all appear to have the same components. The metal diaphragm is the only part that maybe is different in thickness ??? but I don't have any reason to believe this. Everything else is just fasteners, O-rings, and gaskets.

Of the 5 kits shown below, only one explicitly says its for a 090 but all kits sure seem to be very similar.

Anyone else sort through the confusion and could recommend a kit?

Thanks,

Thurmond

$38 kit


$27 kit + $20 ship from Australia


$50 kit - seller confirmed via email that this will fit a 090


$50 kit


$90 kit - explicitly states that its for a 090, includes extra diaphram that is not needed


Thurmond,

Those different kits are lacking critical components needed to perform a good WUR rebuild. Using those kits will not guarantee you to fix the control pressures problem. As a matter of fact, you could be buying the wrong kit as evidence of the last kit. WUR-090 is a non-vacuum assisted WUR , so why would you have a vacuum diaphragm in the kit included?

Tony
Old 11-04-2021, 05:28 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)