head gasket confusion

tahu · Post by **tahu** » Sun Jan 24, 2016 12:30 pm

ok so ive got a h22a closed deck block which was running a Yonaka H22a DOHC VTEC OEM-spec Head Gasket, which i also used on my open deck block.

it blew, granted i used it a few times and thats most likely why but,
i just wanted to make sure this head gasket is ok to be used on open and closed deck blocks before i buy another.

thanks in advance.

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Sun Jan 24, 2016 12:36 pm

tahu wrote:it blew, granted i used it a few times and thats most likely why

Am I reading this right... You re-used a head gasket?

tahu · Post by **tahu** » Sun Jan 24, 2016 12:53 pm

yes i know it was a risk i had to take due to monetary constraints, it did not work out lol

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Sun Jan 24, 2016 10:07 pm

Yep, never re-use a head gasket. They're a single-use item I'm afraid.

Post by **Vtecmec** » Sun Jan 24, 2016 10:11 pm

The open and closed deck engines use different head gaskets.

tahu · Post by **tahu** » Mon Jan 25, 2016 11:33 pm

ah i see where would i get one for a closed deck then? all the ones i can find just say for h22a and dont specify open or closed deck.

Post by **Merlin** » Tue Jan 26, 2016 9:08 am

You need to get one for a 4th gen 92-96. All 4th gen H22's are closed deck. Like this http://www.ebay.co.uk/itm/AJUSA-1009330 ... SwiLdWA9pZ or this http://www.ebay.co.uk/itm/Head-Gasket-1 ... SwyQtVoRPs

tahu · Post by **tahu** » Tue Jan 26, 2016 4:11 pm

whats the difference between open and closed deck gaskets? i cant see any difference

Post by **Merlin** » Tue Jan 26, 2016 4:39 pm

It could be that they are using the same pic for both. Open deck has a larger more encompassing water jacket so there will be more holes around the cylinder holes on the gasket.

tahu · Post by **tahu** » Tue Jan 26, 2016 5:52 pm

but surely the holes corresopond to the holes in the head having extra ones that go no where would be pointless?