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| Chris914n6 |
Sep 15 2026, 03:56 PM
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#21
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Jackstands are my life. ![]() ![]() ![]() ![]() Group: Members Posts: 3,556 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
PMS has an overpriced oil/water heat exchanger that mounts near the engine and pumps water to a front heat exchanger. Uses a common Bosch 'Mercedes' heater pump and 5/8" hoses. You can get heater cores in almost any size to fit however it can. Your current setup with the cooler inlets both on the bottom isn't working well. I don't like the bottom in/out I have now, but mostly because my son bounced off a curb and dragged them. What else is the issue? The top half is full of trapped air. Pressure would be inconsistent too. But looks like you have enough hose to rotate it 90* |
| NARP74 |
Sep 15 2026, 04:31 PM
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#22
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Senior Member ![]() ![]() ![]() Group: Members Posts: 1,570 Joined: 29-July 20 From: Colorado, USA, Earth Member No.: 24,549 Region Association: Rocky Mountains |
I was having some PPI work done before I bought the car, it didn't run. One cold morning my mechanic said the front cooler had a cold start high pressure blow out. Made a huge mess. That is why I have a different one from the early pics. I wonder if that is from the trapped air.
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| Chris914n6 |
Sep 15 2026, 10:03 PM
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#23
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Jackstands are my life. ![]() ![]() ![]() ![]() Group: Members Posts: 3,556 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
You should have a temp controlled oil cooler bypass in the system.
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| NARP74 |
Sep 16 2026, 11:26 AM
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#24
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Senior Member ![]() ![]() ![]() Group: Members Posts: 1,570 Joined: 29-July 20 From: Colorado, USA, Earth Member No.: 24,549 Region Association: Rocky Mountains |
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