1G Bottom to thermostat house cracked

[mitsuowner1991]

Any idea where i can find the piece where the thermostat sit in on a 91 gsx it cracked at the bottom sensor. UGHHH

 

[1990TSIAWDTALON]

Can you post up a picture?

 

[1990TSIAWDTALON]

This is the ONLY one I could find. I looked through a lot of resources.
https://www.ebay.com/sch/i.html?_fr...RS0&_nkw=dsm+4g63+thermostat+housing&_sacat=0

 

[19Eclipse90]

At least around here, old Mitsubishis are becoming more and more difficult to find at junkyards. These pieces are not available new, either, according to my last conversation with JNZTuning 2, 3, maybe 4 years ago.

I have started pulling them from the 90's Hyundai models that have the similar appearing engine to our 4G63. It's also worth pulling the water pipes (interchangeable and pretty much a non-turbo version of ours) and cam angle sensors when you find them.

I have also had one welded up along a crack where I overtightened an ECU temperature sensor. It is holding so far!

 

[mitsuowner1991]

Thats what happen. I over tightened and i heard pop. Then i added coolant n it drips out. What did you put on the threads? Teflon?

 

[1990TSIAWDTALON]

Use Ultra Grey Permatex silicone, it is a wonderful sealer and vibration resistant also.

 

[mitsuowner1991]

Im so upset this happen. I just got all new sensor and was putting them in and it cracked i wonder if jb weld would WORK

 

[rEclipserGST]

JB Weld would work. Could also take it to get it welded.

 

[mitsuowner1991]

I should have taken a pic.. its just a hairline crack but when i put the sensor in, it threads almost all the way and then a little drip happens. So i filled in the crack with jb weld while it wad spread then i took the sensor out an am letting it dry for a day or to. I still wanna get a flange tho.. I hope this works. Im almost ready to put my eclipse on the road ,,then this happens... ughhhhhhh

 

[curt-s]

Run it through few heat cycles before you trust jb weld on aluminum which expands when heated.
What about taking it to get welded locally? Or, you could try to braze it yourself. Might have to drill via a press and retap but I would trust that sooner than JB

 

[92AWDHX40]

Get it welded .

 

[AWD-Tony]

I used quick steel on my friends cracked exhaust manifold. Pretty sure it works on aluminum but double check. It held for about a year then they sold the car so not sure on longevity

 

[1990TSIAWDTALON]

You should have it welded and save it since it is a hard item to come across.

 

[bastarddsm]

Is there enough of a market for a billet aluminum one? It would probably be $250 or so, but should last forever.

 

[ThunderChild]

I think a different style thermostat housing all together could be marketable, but that entails alot of other changes to the affiliated systems.