Water leak from around temp switch, on diesel.

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David
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Water leak from around temp switch, on diesel.

Post by David » Wed Apr 20, 2016 8:42 pm

Hi all, I am back again, with yet more irritating leaks.

The latest one to surface its head is one around the temperature switch.

I have had the housing off the engine and welded, due to it being cracked. I have had the full housing apart and cleaned it all, and reassembled it all with new gaskets, I put the switches in, at first with silicone sealant. The lower one, which is connected to the temp clock, is fine, but the higher one, which is connected to the red light, still leaks. I have pulled it back out, changed the switch for a different one, put plumbing tape around it and even put a rubber ring seal around it, but yet it still leaks. I have no idea what to try next.

It is the slightly earlier 1.9 diesel engine without the fuel filter on the said part.

Any suggestions?
1992 Citroën BX 1.9 Diesel Meteor 4x4 - The Project.

1992 Citroën BX 1.9 TXD (with GTI engine; Mulleys old car) - Parts car.

2004 Citroën Xsara Desire. (Now gone).

2011 Ford Focus Zetec - Daily Driver. (Absolute bone shaker).

rutter123
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Re: Water leak from around temp switch, on diesel.

Post by rutter123 » Wed Apr 20, 2016 8:58 pm

I suspect the housing is still cracked somewhere. i might have a housing should you need one post up a pic of yours and i'll have a look.
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themildbunch
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Re: Water leak from around temp switch, on diesel.

Post by themildbunch » Fri Apr 22, 2016 10:26 am

i've found that the outlet hose just below the switches can leak too but from the thread - plumbing tape are here helped...

I too have a spare housing if you need one


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David
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Re: Water leak from around temp switch, on diesel.

Post by David » Sun Apr 24, 2016 2:05 pm

Thanks for the replies.

Hopefully I don't need a housing; I have been messing around with it and I believe I have finally got it to seal up, It just needed more PTFE tape around it. I didn't want to crack it again by using too much, which I think is what cracked it initially, so I was just being over cautious.

I had it welded up & they rethreaded it, as the crack was down the side of the port. I have looked around it & I can't see any other cracks, so hopefully it will be fine now.

Thanks again for the offers & help.
1992 Citroën BX 1.9 Diesel Meteor 4x4 - The Project.

1992 Citroën BX 1.9 TXD (with GTI engine; Mulleys old car) - Parts car.

2004 Citroën Xsara Desire. (Now gone).

2011 Ford Focus Zetec - Daily Driver. (Absolute bone shaker).