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So, another dumb question.(Fuel Thermostat)

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Old Jun 7, 2012 | 04:16 PM
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Exclamation So, another dumb question.(Fuel Thermostat)

It's about the fuel thermostat again. This time it's about bypassing the part. I've identified what I think are the two hoses to be joined, but I want to be sure.(Pic might be large, not so sure.)

Sorry for these, I have zero experience and want to get this car running.
(300SDL, 1986, 601 engine.)

Also, are there any tips for bleeding the air out of the system? (For post-op.)

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Last edited by 300sdFail; Jun 7, 2012 at 04:34 PM. Reason: Added Picture
Old Jun 7, 2012 | 06:19 PM
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Update: Mercedes mechanic tells me I have to replace the entire part and cannot bypass it. Though I've heard of others on this forum bypassing the part...
 
Old Jun 8, 2012 | 10:30 PM
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Originally Posted by ForcedInduction
Your "mechanic" just wants to take your money. The thermostat just needs a single simple o-ring to fix any leaks.

Also, the thermostat is not actually needed. It only operates up to 70*f and the engine will run the same without it. You can bypass it by simply running a new hose from the suction pipe to the lift pump.
I'm sure the procedure is simple, but I'm not sure what those bits are. I'm pretty sure I was dropped more than once as a kid. :/

Sorry. Trolling not intentional.
 
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