Technical 2.8Jtd Thermostat housing fissure

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Technical 2.8Jtd Thermostat housing fissure

Dethleffs

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This is to do with a 2.8Jtd (8140.43S) engine cooling system. It’s a 2002 base vehicle (built 2002) so second generation.

The thermostat assembly body is weeping from what appears to be a fissure in the assembly body where the temperature sender for the temperature gauge screws in.

The seal on the temperature sender is good so I’m certain that there is a fissure there especially as if I tighten the sender slightly the weeping increases.

So I have two questions . .

1. Is this repairable? All suggestions welcome especially if they save me money and effort. Whatever I do needs to be a reliable fix.

2. If as I suspect it’s not, my challenge is to track down the correct replacement part. Using the ePer I come up with a part number 50031009 . However I note that there are two alternate variances (which the ePer does not recommend) and certainly some of the on-line pictures I’ve seen don’t appear to quite tally with what I have – for instance
http://www.ebay.co.uk/itm/Citroen-Relay-Peugeot-Boxer-Fiat-Ducato-2-8-Jtd-Thermostat-Housing-/222674789558?hash=item33d873a4b6:g:5ckAAOSwA2hZsv~2 claims to be compatible but is slightly different.

Any advice on verifying the correct part would be gratefully received – ie is the ePer always correct or is some additional verification needed?

Many thanks
 
Just take out out the sensor and replace it with rtv gasket maker on the threads and flange.
 
100 miles later, coolant levels constant, no sign of coolant loss - all good.

Many thanks.
 
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