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Join Date: Aug 2016
Location: Cali
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76 WUR Alternatives

I recently acquired a 76 911. Trying to sort everything out to get it running and I discovered I'm missing a WUR.

The part number is:

BOSCH FUEL WARM UP REGULATOR 0 438 140 033

Its NLA so I'm trying to track one down at a reasonable price. Has anyone used a different WUR? Looks like the Bosch WUR that's a direct replacement was used in different cars as well but all highly priced. Searched around but couldn't find an answer.

What WUR works without much modification?

Thanks.
Old 10-11-2018, 08:38 AM
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76 911S Targa
 
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Tony is the man. Try boyt911sc on this forum for information and CIS parts. He has several of everything and actually knows how they work.
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76 911S, 2.7, Bursch Thermal Reactor Replacements, Smog Pump Removed, Magnecors, Silicone Valve Cover Gaskets, 11 Blade Fan, Trombone Oil Cooler, Turbo Tie Rods.
Old 10-11-2018, 10:01 AM
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Crotchety Old Bastard
 
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I've got a rebuilt -033 on the shelf, email me if interested.
The -033 specs are similar to the -069. There are other makes that are similar as well but I would keep with the OEM part number if possible.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 10-11-2018, 10:34 AM
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Warm-up Regulator..........

Quote:
Originally Posted by LGP 951 View Post
I recently acquired a 76 911. Trying to sort everything out to get it running and I discovered I'm missing a WUR.

The part number is:

BOSCH FUEL WARM UP REGULATOR 0 438 140 033

Its NLA so I'm trying to track one down at a reasonable price. Has anyone used a different WUR? Looks like the Bosch WUR that's a direct replacement was used in different cars as well but all highly priced. Searched around but couldn't find an answer.

What WUR works without much modification?

Thanks.

LGP,

If you are into concourse restoration you should find a good working WUR-033. This particular WUR is not as consistent in performance like those used later CIS (‘78~’79 SC’s). BTW, WUR-033 is NOT similar to WUR-069.They are totally different in spec, construction, and operation. What is the WUR installed on the engine now?

I could lend you a fully rebuilt, tested, and calibrated WUR-033 or a substitute WUR that would work better than -033. You could use and test the loaner WUR in your car and no obligation to buy it. If you are NOT completely satisfied with its performance, simply return it back to me. No question asked. I have provided hundreds of these WUR’s to members of this forum and counting.

PM me if you are interested in the loaner program. Good luck.

Tony

Last edited by boyt911sc; 10-11-2018 at 04:54 PM..
Old 10-11-2018, 04:15 PM
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914-6Werkshop
 
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Tony is the man when you need CIS help. We've sent many WUR's and FD to him and 100% satisfied every time.
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Old 10-11-2018, 07:32 PM
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Crotchety Old Bastard
 
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-033 pressure specs are nearly identical to a -069. Obviously they are different units assigned to different applications or they would not have different part numbers. I don't suggest mixing and matching fuel distributors and WURs but some do. The FD also has to be considered and compatible with the WUR.
If you need a Bosch approved rebuilt unit we have them.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8

Last edited by RarlyL8; 10-13-2018 at 03:11 PM..
Old 10-13-2018, 03:08 PM
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