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-   -   1984 300DT: could a bad fan clutch cause water pump to go bad? (http://www.peachparts.com/shopforum/diesel-discussion/397482-1984-300dt-could-bad-fan-clutch-cause-water-pump-go-bad.html)

HuskyMan 02-13-2019 08:30 PM

1984 300DT: could a bad fan clutch cause water pump to go bad?
 
Water pump blew tonight, leaking like a sieve. Obviously the car needs a new fan clutch. question: could a bad fan clutch cause the water pump to go bad?

Diseasel300 02-13-2019 09:27 PM

Only if it's loose and wobbling around. Otherwise, probably just coincidence. You'll be removing one to replace the other, time to replace both.

dogguy 02-13-2019 11:07 PM

Quote:

Originally Posted by HuskyMan (Post 3889750)
question: could a bad fan clutch cause the water pump to go bad?

Possible? Yes.
Likely or even somewhat likely? No.

I would rephrase this: "probably just coincidence" to: almost certainly coincidence.

HuskyMan 02-14-2019 02:22 PM

I have some water proof "Flex Tape" (infomercial product). I need to use the car to go get the water pump at the parts store.

Question: Could I wrap the water pump with the water proof Flex Tape to temporarily stop the pump from leaking.....at least enough for a short drive?

t walgamuth 02-14-2019 02:52 PM

I doubt the tape will stop the leak.

sixto 02-14-2019 02:53 PM

Back the pressure cap off a notch so the system doesn’t build pressure and maybe leaks less. You should be fine if you take it easy. Watch the temp gauge and check coolant level as often as you can.

Sixto
98 E320s sedan and wagon
02 C320 wagon

Mxfrank 02-14-2019 03:43 PM

Does it matter at all? You need a new clutch and a new pump. Unless you were planning to reinstall the bad clutch, the question is irrelevant.

HuskyMan 02-17-2019 05:57 PM

I have Permatex Anaerobic Gasket Maker and also Permatex RTV Silocon Gasket Maker......which would you recommend for the water pump gasket?

HuskyMan 02-17-2019 05:59 PM

What should I use to clean the surfaces? Permatex recommends cleaning both mating surfaces then spraying with Permatex Surface Prep before using the Anaerobic Gasket Maker on the water pump gasket.

okyoureabeast 02-17-2019 07:17 PM

Quote:

Originally Posted by HuskyMan (Post 3891379)
I have Permatex Anaerobic Gasket Maker and also Permatex RTV Silocon Gasket Maker......which would you recommend for the water pump gasket?

Neither, just use the paper gasket that comes with the water pump. Using gasket goop just causes it not to seal and potentially leak. Don't ask me how I know.

Clean the surface so it's butter smooth before you do this with a scotch brite pad.


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