Ea81 welch plugs

ajbuwalda · Post by **ajbuwalda** » Sat May 05, 2012 6:55 pm

Just wondering how i get the welch plugs in heads out? And also where else are they located

Brumby Kid · Post by **Brumby Kid** » Sat May 05, 2012 7:07 pm

3 in each head, rocker cover side, 20mm use brass. And supposedly there are 2 in each side of the block. Not sure how to get them out though.

ajbuwalda · Post by **ajbuwalda** » Sat May 05, 2012 7:11 pm

I used a punch for one and it fell inside the head, so hard to get out, gotta be a trick to it, maybe screw a screw in the use a bearing puller like thing and pull them out?

steptoe · Post by **steptoe** » Sun May 06, 2012 10:12 am

yes, was, gonna suggest that, drill hole in plug first to suit a screw. For safety use a piece of something to limit drilling depth. Can't leave plug in head...hang on.....

shoot you act fast, first asking where and how and fifteen minutes later you have one stuck inside head ?

Have done just your trick but twice before I figured to drill and screw and pull or just lotsa little holes to the side of flat of plug to help collapse it.

One plug actually fell out block side holes, the other well, felt it was a throw away but persisted and got it, wishing small slip jointed angle pliers existed! Bigger slip joint will be enough to pull with screw in firm I found with 10 and 12mm plugs

Two? in each side of the block - rumours BK or prove it

other info is correct 3 x 20mm brass

How is progress, engine out ??

Gannon · Post by **Gannon** » Sun May 06, 2012 11:03 am

The ones in the block arent welch plugs, they are screw in plugs and you need a maybe 17mm socket to remove them, but I dont know why you would.

Brumby Kid · Post by **Brumby Kid** » Sun May 06, 2012 11:22 am

I was told when I asked months ago, by someone possibly by the name of steptoe, that there where 10, 6 in the heads and 4 in the block.
Stuff happens oh well, Gannon fixed.

Cheers Cam

steptoe · Post by **steptoe** » Sun May 06, 2012 12:04 pm

Not steppy, was unsure if it was 3 or 4 in each head, had to think a moment, but deffo not in block. Some inlet manifolds like EA82 mpfi have 10mm or 12mm or both. Think some early EA81 had a water plug threaded like gudgeon pin access 14mm allen keyed.

ajbuwalda · Post by **ajbuwalda** » Sun May 06, 2012 12:45 pm

I have an old set of cracked heads i thought would try on first, engine will be completly out in half hour.
Dumped oil, well couldnt see much under the water, so im leaning toward welch plug now. Thanks for the info and advice guys

ajbuwalda · Post by **ajbuwalda** » Sun May 06, 2012 5:57 pm

Just took heads off, plugs look good, no1 and 3 cylinder were full of water, head looks good so just a gasket maybe?

Brumby Kid · Post by **Brumby Kid** » Sun May 06, 2012 6:01 pm

Have you got any pics of the heads or gasket? If the heads were not torqued right or were warped that would do it unless you can see signs of a blowout on the gasket. What we want to know us why it did it especially seeing as you did it not long ago.

ajbuwalda · Post by **ajbuwalda** » Sun May 06, 2012 6:15 pm

I think it is because the bolts keep viabrating loose, i didnt have to crack the driverside (problem side) where as the other side were alot tighter then the torqe settings, i realised it when i checked them a week after doing the gasket last time but didnt think much. I will use some lock tight, try see how that goes, fishing trip to test it.

How many km do you get from a tank? I get on avereage 5 to 6 hunder, normal?

Brumby Kid · Post by **Brumby Kid** » Sun May 06, 2012 7:07 pm

What are you getting L's per 100km?
That's easier to compare.

ajbuwalda · Post by **ajbuwalda** » Sun May 06, 2012 7:19 pm

In town driving mainly

ajbuwalda · Post by **ajbuwalda** » Sun May 06, 2012 7:24 pm

Not 100% sure, about 6 to 7

steptoe · Post by **steptoe** » Sun May 06, 2012 7:41 pm

My Brumby on its new engine gave me 609km from full to splutter, splutter empty. Surprising the reserve left when needle hits empty