Any one removed lower half of thermostat housing

Madmark · 01-08-2016, 12:29

My terrano has stripped it's thread on the long bolt of the thermostat housing on a 2.7tdi. The long bolt seems to do two jobs one is hold top hat of thermostat housing and go through the lower part and bolts to lower part of the head or timing casing and doesnt look to be a very long thread in this part. I'm gonna need new gasket etc. And gonna helicoil or cut a bigger thread in this lower engine piece as looks to have been bodged a bit before. Just wondering if this is possible before I start stripping it down

rustic · 01-08-2016, 12:36

A quick note on Helicoils, when used correctly with the helicoil tap, the strength of the fixing in aluminium will be much greater than the Aluminium it'self.

Ideal for fixings in Aluminium, that are likely to be dismantled a lot too

Madmark · 01-08-2016, 13:44

I think they're awesome it's just long winded to get to it and put it back together

ste68blue · 01-08-2016, 19:49

Hi I did mine last year because the top part was cracked and leaking and when I tried to reassemble it the long bolt appeared to be stripped and didn't screw in, when I took the lower part off ready to re-tap the offending hole I actually found that it was just full of junk and silicone, so I cleaned it all out and hey presto it went in as it was meant too....
Hope that helps?

01-08-2016, 12:29	#1
Madmark Senior Member Join Date: Aug 2014 Location: Dorset Vehicle: highly modded Terrano 2 Posts: 1,088	Any one removed lower half of thermostat housing My terrano has stripped it's thread on the long bolt of the thermostat housing on a 2.7tdi. The long bolt seems to do two jobs one is hold top hat of thermostat housing and go through the lower part and bolts to lower part of the head or timing casing and doesnt look to be a very long thread in this part. I'm gonna need new gasket etc. And gonna helicoil or cut a bigger thread in this lower engine piece as looks to have been bodged a bit before. Just wondering if this is possible before I start stripping it down

01-08-2016, 12:36	#2
rustic Senior Member Join Date: Feb 2007 Location: Staffordshire Vehicle: Maverick Mk I 2.7 TD LWB Posts: 7,825	A quick note on Helicoils, when used correctly with the helicoil tap, the strength of the fixing in aluminium will be much greater than the Aluminium it'self. Ideal for fixings in Aluminium, that are likely to be dismantled a lot too __________________ Ford Maverick GLX 1995 2.7TD LWB in illusion silver, 98k miles. Owned since new, for 22 years. Best car I have ever owned. Just wish I could drive it more.

01-08-2016, 13:44	#3
Madmark Senior Member Join Date: Aug 2014 Location: Dorset Vehicle: highly modded Terrano 2 Posts: 1,088	I think they're awesome it's just long winded to get to it and put it back together

01-08-2016, 19:49	#4
ste68blue Senior Member Join Date: Jan 2011 Location: yorkshire Vehicle: Nissan Terrano 2, 2.7TDi Posts: 664	Hi I did mine last year because the top part was cracked and leaking and when I tried to reassemble it the long bolt appeared to be stripped and didn't screw in, when I took the lower part off ready to re-tap the offending hole I actually found that it was just full of junk and silicone, so I cleaned it all out and hey presto it went in as it was meant too.... Hope that helps?