Coolant Leak Numpty Questions!

[vitesse]

Thanks for the pictures. Seems my post no.32 wasn't entirely inaccurate.

I believe that the inlet gaskets are treated paper ones. Perhaps Lovel's observations that the bolts need tightening after some weeks could explain the failure of some gaskets. I recall one occasion when I had the engine cover off and found that the bolts were not as tight as they originally were.

Clean up the surface as best you can with solvent and a fine grade of wet & dry on a flat surface, but I don't think you'll remove all the pitting. Although it's said to be unnecessary, I'd apply a thin smear of Hylomar to the pitted area and also the gasket itself.

But congratulations on the work so far, it does get easier next time ...

Regards

[phenonix]

Does this part of the manifold need to be cleaned well?
it appears to be caked coolant, do i need to pick all that gunk out?
Thanks

[vitesse]

Originally Posted by phenonix

Does this part of the manifold need to be cleaned well?
it appears to be caked coolant, do i need to pick all that gunk out?
Thanks

Yes, it's a water channel, if blocked then there's no circulation there.

Regards

[phenonix]

Originally Posted by vitesse

Yes, it's a water channel, if blocked then there's no circulation there.

Regards

Well there you go....that was all bunged up, packed with dry solid coolant, that was the cause of the gasket failure...seems as we have solved the mystery, thanks to all for your responses and comments, without you i would not have managed this.

[phenonix]

Hole now cleaned, zero coolant would have been going through previously.
The part where the rubber hose connects look as if it is corroding, it does not seem to be aluminium, not part of the casting.

i'm thinking this is what might have created the gunk to eventually block, I've been reading about galvanic corrosion, looks similar?

[vitesse]

Originally Posted by phenonix

Hole now cleaned, zero coolant would have been going through previously.
The part where the rubber hose connects look as if it is corroding, it does not seem to be aluminium, not part of the casting.

i'm thinking this is what might have created the gunk to eventually block, I've been reading about galvanic corrosion, looks similar?

Should imagine the small pipe is steel pressed into the aluminium. Not unusual to find the steel corroded, my SD1's steel coolant pipes suffered corrosion too and that was with a 30% blue anti-freeze solution.

The blockage you suffered was unusual, perhaps the result of lack of flow/overheating? Interesting to see what others think.

Regards

[SD1too]

Originally Posted by vitesse

The blockage you suffered was unusual, perhaps the result of lack of flow/overheating? Interesting to see what others think.

Agreed Mike, it's definitely unusual. Mr. Previous Owner might have put some leak-sealing gunge into the cooling system.

Simon

[phenonix]

Hi all,
I had to wait for some fuel injector seals as the one on my seemed cracked.
I recorded almost everything but not where this hose and damper on the fuel rail goes to.

Can anyone advise if this small hose clips onto that damper nipple?
Then the other end goes to where?

It the was the hose is pre shaped that is confusing me as it seems to be a hitting very close to the manifold when i connect it.
Thanks

[phenonix]

I can see it here in Artics thread, post 18, is that the path it takes?

https://the75andztclub.co.uk/forum/s....php?p=2595205

[Arctic]

Hi Joe.
Take a look at some of the other photos in the same thread.

https://rimmerbros.com/Item--i-GRID001941

https://the75andztclub.co.uk/forum/s...39&postcount=5

https://the75andztclub.co.uk/forum/s...3&postcount=14