Coolant leak

Technical advice Q&A
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mtnjag
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#1 Coolant leak

Post by mtnjag » Sun Mar 29, 2020 6:20 pm

62 S1 3.8-Have a couple of weeping leaks at the head/block joint on the intake side. Does not appear to be the intakes to head.

Weeps enough to make it to the pan and blow around a little. Noted some slight deposits over time but since a couple of coolant changes in the last year or so for a new pump and then a radiator pull it has increased, want to stop it.

I'll try a retorque of the head first and recheck the situation once running again, doing a rear pan seal right now.

I see references here and other forums to Bars Leaks for this type of leak. They have so many products does anyone have a reference for the preferred product?

Thanks
Layne
Car #876005, 62 OTS

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mgcjag
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#2 Re: Coolant leak

Post by mgcjag » Sun Mar 29, 2020 6:44 pm

Hi Layne...this is the standard old school type bars leaks iv used numerous times over the years on old classics
Steve
69 S2 2+2 (sold) ..Realm C type replica, 1960 xk150fhc

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#3 Re: Coolant leak

Post by mtnjag » Sun Mar 29, 2020 7:03 pm

OK, thanks. I'll check the auto parts stores. Amazon shows it "unavailable in my area due to high demand". Hmmm. Bottle looks different that what's avail on Bars Leaks site, maybe changed to a new bottle...I'll check with them Monday. If they're open!
Layne
Car #876005, 62 OTS

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chrisfell
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#4 Re: Coolant leak

Post by chrisfell » Sun Mar 29, 2020 9:25 pm

A word of warning against barsleaks. My experience with old Brit cars is that it can’t tell the difference between a small leak and the furred up waterways in a well used radiator. It blocks them all.

I’d steer clear and deal with the leak properly, even if that means taking the head off.
Chris '67 S1 2+2

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mtnjag
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#5 Re: Coolant leak

Post by mtnjag » Tue Mar 31, 2020 2:51 pm

Thanks. Going to borrow a pressure check tool and see just what I have going on. Try to retorque the head, and consider pulling it and using a cometic gasket which I hear good things about, I think.

Got the pan off now to fix what I hope is a rear pan seal leak and will compete that and proceed. The more I work on it the more leaks I find!
Please God, stop finding leak.
Layne
Car #876005, 62 OTS

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