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hipine Date registered: Jul 2006 Location: US, CO, Bailey Vehicle(s): 460 1980 280GE w. 617A  | Successful WUR rebuild Last week the 230GE started showing signs of running super rich and I suspected something wrong with the Warm Up Regulator (WUR). I put the fuel pressure gage on it and sure enough, the control pressure was super low and there was nothing I could do to influence it. I thought I was in for a big ticket item or taking a risk with a junkyard part. Little did I know that since the last time I looked into this, people have come on the scene making rebuild kits for the WUR. This morning Wyatt and I removed the WUR, opened it up, cleaned everything up good and replaced the o-rings and stainless steel diaphragm that came in the rebuild kit. Put it back together, re-installed it, adjusted the cold control pressure, broke out the Gunson Gastester and set the idle CO and idle speed. She's back to running like a champ! I can't say I found out specifically why the WUR was leaking-by resulting in super low control pressure (less than 0.5 bar), but whatever it was got fixed by the rebuild, and the cars running great again so I'll consider it a success and ready to go for another 35 years and 300k miles or so. Here's the only source I know of for these kits in the states. http://salvox.com $700+ part new, $200+ used flea-bay part, $55 rebuild kit. I'll try to attach the best rebuild article I know of. -Dave G. Edited by hipine 11/16/2019 10:11 PM Attachments ----------------  wurfix_1504161129688.pdf (190KB - 15 downloads) | |
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| AlanMcR Expert Date registered: Apr 2006 Location: US, CA, Los Altos Vehicle(s): G300DT E300DT 230SL Posts: 3500  | ||
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| Otiswesty Administrator Date registered: Jun 2007 Location: Portland, Oregon Vehicle(s): 463.241, 461.213 Posts: 3006 | ||
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| hipine Date registered: Jul 2006 Location: US, CO, Bailey Vehicle(s): 460 1980 280GE w. 617A | ||
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