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Gtir Motorsport club » Tech room » Help and Advice » Water jacket gunk?

Water jacket gunk?

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1Water jacket gunk? Empty Water jacket gunk? on 8th January 2016, 6:47 pm

burrows1980

burrows1980
Evenin,

I stripped the engine down this afternoon, when I removed the head I discovered one of the water jackets is completely blocked on cylinder 4

Water jacket gunk? 1A44B72E-B50E-4BA8-9B25-5025BBBDA09F_zpstnbouspo

I dug the stuff out with a small screwdriver

Water jacket gunk? B7AB55AD-C79D-48C1-8DF5-E6FA2453C974_zpsv4n8789q

Any idea what's caused this?  Under the head gasket a blob of liquid gasket was wedged in another smaller water way, same sealant as used around this housing

Water jacket gunk? 0FB9BFBA-E521-411F-881C-12B10E136A72_zpsvq45xstc

Wondering if this what caused the problem on the blocked jacket?

Gaz

2Water jacket gunk? Empty Re: Water jacket gunk? on 8th January 2016, 7:27 pm

Mr B

Mr B
gtir technician
gtir technician
possibly, not a big fan of use of sealants as seen too many problems due to excessive sealant.
Seen similar on a 7mgte I had displeasure of working on & that had clogged couple water ways due to sealant fragment partially blocking then further debris builds up round restriction.
Some coolant chemicals or leak additives can make interesting gunk & chemically react too .
You doing a full strip & clean ?

3Water jacket gunk? Empty Re: Water jacket gunk? on 8th January 2016, 7:43 pm

burrows1980

burrows1980
Of course Mr B full clean to match the car Laughing

Noticed one of the other liquid sealant joints had excess on from Nissan too! Hopefully not done any damage!

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