Roon1973 · Oct 19, 2018

Recently purchases a series 3 2.25 Diesel (1977) and when cleaning up the engine bay the leak from the thermostat was because one of the bolts has stripped... has any one used loctite thread repair or will i have to re thread...(have tried to rethread the same size but the bolt still pulls..don't really want to go a size up if i ccan help it

thanks

TorsionBhudda · Oct 19, 2018

You could try helicoiling the damaged thread this would give a good permanent repair. I'm not sure what size or form the thread is but you should be able to get a kit to suit your bolt. Screwfix do metric kits https://www.screwfix.com/c/screws-n...0002&brand=helicoil&page_size=20&page_start=0 But if you search google/ebay you should be able find a kit for imperial threads.

TorsionBhudda · Oct 19, 2018

TorsionBhudda · Oct 19, 2018

You could try helicoiling the damaged thread this would give a good permanent repair. I'm not sure what size or form the thread is but you should be able to get a kit to suit your bolt. Screwfix do metric kits https://www.screwfix.com/c/screws-n...0002&brand=helicoil&page_size=20&page_start=0 But if you search google/ebay you should be able find a kit for imperial threads.

Roon1973 · Oct 19, 2018

thanks i have tried re threading but did not work... i will need to go up in size and i am concerned re drilling the thermostat housing

bluehaze · Oct 19, 2018

Helicoil will do the trick

jamesmartin · Oct 19, 2018

Roon1973 said:
Recently purchases a series 3 2.25 Diesel (1977) and when cleaning up the engine bay the leak from the thermostat was because one of the bolts has stripped... has any one used loctite thread repair or will i have to re thread...(have tried to rethread the same size but the bolt still pulls..don't really want to go a size up if i ccan help it

thanks

if its which it should be an imperial thread though many have been swapped to metric heads or engines its a 1/4 unf and a recoil kit of the same is the best repair loctite will never do

jamesmartin · Oct 19, 2018

Roon1973 said:
Recently purchases a series 3 2.25 Diesel (1977) and when cleaning up the engine bay the leak from the thermostat was because one of the bolts has stripped... has any one used loctite thread repair or will i have to re thread...(have tried to rethread the same size but the bolt still pulls..don't really want to go a size up if i ccan help it

thanks

if its which it should be an imperial thread though many have been swapped to metric heads or engines its a 1/4 unf and a recoil kit of the same is the best repair

jamesmartin · Oct 19, 2018

Roon1973 said:
Recently purchases a series 3 2.25 Diesel (1977) and when cleaning up the engine bay the leak from the thermostat was because one of the bolts has stripped... has any one used loctite thread repair or will i have to re thread...(have tried to rethread the same size but the bolt still pulls..don't really want to go a size up if i ccan help it

thanks

if its which it should be an imperial thread though many have been swapped to metric heads or engines its a 1/4 unf and a recoil kit of the same is the best repair

jamesmartin · Oct 19, 2018

Roon1973 said:
Recently purchases a series 3 2.25 Diesel (1977) and when cleaning up the engine bay the leak from the thermostat was because one of the bolts has stripped... has any one used loctite thread repair or will i have to re thread...(have tried to rethread the same size but the bolt still pulls..don't really want to go a size up if i ccan help it

thanks

if its which it should be an imperial thread though many have been swapped to metric heads or engines its a 1/4 unf and a recoil kit of the same is the best repair

Bobsticle · Oct 19, 2018

Close the bonnet. Your causing an echo.

resto_d1 · Oct 19, 2018

Helicoil is the cure

Saved my axle casing on mine. If your not aware, All you do is oversize the hole then screw an insert in with the bits supplied in kit. That insert then locks in place and you can put the original sized bolt back in. It is your best bet for sure!

resto_d1 · Oct 19, 2018

Helicoil is the cure

Saved my axle casing on mine. If your not aware, All you do is oversize the hole then screw an insert in with the bits supplied in kit. That insert then locks in place and you can put the original sized bolt back in. It is your best bet for sure!

The Mad Hat Man · Oct 19, 2018

echo!

DanClarke · Oct 19, 2018

Hello! ;-)

DanClarke · Oct 19, 2018

Hello! ;-)

TorsionBhudda · Oct 19, 2018

https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=1/4+unf+helicoil+kit&_sacat=0

SteveSw · Oct 19, 2018

+1 for helicoil type repair. Tried my first one on a cylinder head last week. Totally drama free - i think I'm in love!

Roon1973 · Oct 20, 2018

jamesmartin said:
if its which it should be an imperial thread though many have been swapped to metric heads or engines its a 1/4 unf and a recoil kit of the same is the best repair

thanks James

Roon1973 · Oct 20, 2018

jamesmartin said:
if its which it should be an imperial thread though many have been swapped to metric heads or engines its a 1/4 unf and a recoil kit of the same is the best repair

than

TorsionBhudda said:
https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=1/4+unf+helicoil+kit&_sacat=0

Thanks so Much !!!!!!!!! really is appreciated
ks James

Dieselweasel0 · Nov 9, 2018

On my old disco1 I had same thing, thermostat housing bolt popped out, waited for it cool completely and used Araldite as temporary fix for 10 years with no problems.
I do miss that tdi sometimes

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