Core plug sealant

Gordy88 · Apr 16, 2014

Hi All,

I have to replace a couple of core plugs in a TD5 engine,

Thing is, the last time I fitted core plugs was in a Chevette, in about 1986!

I cant remember what sealant to use, either red hermetite, green hermetite, or blue hylomar.

Can someone refresh my memory please

Thanks

Gordy

listerdiesel · Apr 16, 2014

Don't use Hermetite, and Hylomar is for sealing machined faces.

RAVE doesn't mention it at all, but if it were me I'd use RTV sealant.

Vauxhall used a thin brown sealant that came in tubes or tins, can't remember the name of the stuff but I did a few core plugs over the years on them and Bedfords.

Peter

Thor1950 · Apr 16, 2014

Gordy88 said:
Hi All,

I have to replace a couple of core plugs in a TD5 engine,

Thing is, the last time I fitted core plugs was in a Chevette, in about 1986!

I cant remember what sealant to use, either red hermetite, green hermetite, or blue hylomar.

Can someone refresh my memory please

Thanks

Gordy

Used to use this after wire brushing the hole in the block .Gasket Sealants

sierrafery · Apr 16, 2014

my mechanics used Loctite flange sealant , no leaks since: http://www.ebay.co.uk/itm/Loctite-574-Flange-Sealant-50ml-Pump-Bottle-/181334067340

David Pye · Apr 16, 2014

sierrafery said:
my mechanics used Loctite flange sealant

Gordy88 · Apr 17, 2014

Thanks Guys,

Appreciate the info

Gordy

jamesmartin · Apr 17, 2014

core plugs need sealing with a hard setting sealer like loctite and fit just below flush with block face

Core plug sealant

Gordy88

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listerdiesel

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Thor1950

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sierrafery

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David Pye

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Gordy88

Active Member

jamesmartin

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