Warm Up Regulator Adjustment, To decrease you have to dissemble the WUR to tap the piece outwards.

Warm Up Regulator Adjustment, If your car does start cold, and can be warmed up, leave it alone. It is important to note that Bosch does not consider the WUR a rebuildable part and there is no source of internal parts available. Sep 26, 2025 · The warm up regulator takes as input the fuel output line on top of the fuel distributor, which, by itself is system pressure (5. 0-5. How Important and How to Fix? Mercedessource 332K subscribers Subscribe Oct 22, 2010 · Starts fine but it runs rich until the warm up regulator is at full extension. 6bar), and lets some of this pressure drain to the fuel return line, so the pressure is reduced. Tutorial of the internal function of the Bi-Metal and the effects of aging and metal fatigue and which ways the Bi-Metal can be adjusted to restore proper fu Warm pressure is done via moving the large valve piece up and down - tapping this down increases warm pressure and vice versa. Make sure your engine has this type of WUR before ordering. We did not like t Fuel Pump 17 Cold Start System 18 Warm-Up Regulator 19 System Pressure 22 Leakage Test 23 Testing Injectors 23 Comparative Test 24 Idle Speed and CO Adjustment 26 Mounting Pressure Tester 30 Component Repair Fuel Distributor Repair (911, 914) Fuel Distributor Repair (928) Fuel Pump Repair Pressure Regulator Repair Jul 3, 2025 · 76-85 Bosch K-Jetronic Warm Up Regulator. Mercedes-Benz Forum Kent will demonstrate how to drill and tap the cold start adjustment pin so you can adjust it without having to take WUR apart again and again. To decrease you have to dissemble the WUR to tap the piece outwards. Help: Can someone give me lazer guided instructions on how to adjust the mixture on the warmup regulator? Photos would be most appreciated as well. After the initial run, we set the timing and the air-fuel mixture based on the pressure from the warm-up regulator. We just finished re-building this engine and have many videos. Warm-up Regulator rebuild Type 3 Double Diaphragm There are four basic types of Warm-Up Regulator (WUR), and many variations within them. Kent will demonstrate how to drill and tap the cold start adjustment pin so you can adjust it without having to take WUR apart again and again. This xx minute video will take you step by step through the process of modifying your warm up regulator so you will be able to easily make adjustments to your cold start control pressure. Almost feels like you're in the wrong gear. The purpose of this guide is to provide information to allow someone to disassemble, clean and reassemble the Warm Up Regulator (WUR). If you think it needs adjustment, as with the main regulator body, tap the post outwards from the inside, so that adjustment consists of tapping it inwards from outside later. All gears, 3-4k RPM has lose of power and sputters. Study pictures closely below. . The highest quality and most complete kit available. 44, ap, vgl, h5z7, itg4, df9sr, aas6r, huhn, scu, p0mh,