EA81 or EJ in Brumby

mud_king91 · Post by **mud_king91** » Sun Sep 18, 2011 2:52 pm

I think their commonly made in brass and occasionally steel

revmax · Post by **revmax** » Sun Sep 18, 2011 3:32 pm

steptoe wrote:Think revmax may find 7.7:1 ratio is EA82T , EA81's are already close to 9.0:1

yes sorry 8.7:1

Silverbullet · Post by **Silverbullet** » Sun Sep 18, 2011 4:17 pm

Can I suggest, if you go down the road of rebuilding the 81, don't skimp on ANYTHING

I mean, buy new pistons, new conrods, bearings and rings of course, get crank linished, heads faced, maybe valve job if yours are stuffed, rebuild or replace carb with a new one...Don't try and get away with the minimum of spend, I did and you only have to read my rebuild thread to see where that ended

Also the usual stuff like don't rush, be patient, if you have to wait a week for a tiny part to arrive then wait don't try and push on without it. But I'm sure you know all that

Brumby Kid · Post by **Brumby Kid** » Sun Sep 18, 2011 7:01 pm

Didn't have time to use the chemytech today (Another week). What i did learn is of course my battery was flat so i charged it. Eventually it turned over, i then disconected the charger and let it idle for 20 mins or so. I then turned it off and tried to turn it back on, NOTHING. I have filled it with distilled water and left it charging overnight. I was told if nothing tomorrow, check the alternator (which i think is ok) if not its a dead battery

mud_king91 · Post by **mud_king91** » Sun Sep 18, 2011 8:18 pm

Brumby Kid wrote:Didn't have time to use the chemytech today (Another week). What i did learn is of course my battery was flat so i charged it. Eventually it turned over, i then disconected the charger and let it idle for 20 mins or so. I then turned it off and tried to turn it back on, NOTHING. I have filled it with distilled water and left it charging overnight. I was told if nothing tomorrow, check the alternator (which i think is ok) if not its a dead battery

Try INOX battery conditioner... works everytime for me

Brumby Kid · Post by **Brumby Kid** » Sun Sep 18, 2011 8:29 pm

mud_king91 wrote:Try INOX battery conditioner... works everytime for me

What does it do? That would be another great fix to by me some time before i have to do something. Just like the chemytech.

Brumby Kid · Post by **Brumby Kid** » Sun Sep 18, 2011 9:05 pm

How much do you pay for it? I can get the small bottle posted to me for about $18 on ebay.

mud_king91 · Post by **mud_king91** » Sun Sep 18, 2011 10:13 pm

Get it

Brumby Kid · Post by **Brumby Kid** » Mon Sep 19, 2011 8:22 am

Just found it for $10 at supercheap. Hopefully it will actually be there

mud_king91 · Post by **mud_king91** » Mon Sep 19, 2011 8:47 am

Really ? I used to pay 23 at the local car parts store

steptoe · Post by **steptoe** » Mon Sep 19, 2011 9:17 am

Always been about the 8 to 10 bucks at hardware or SCA. Not sure why battery places don't sell it ?

? It cleans crap off the plates and gives battery a nw lease of life - if it is the problem. Sulphates ?

20mm brass is what you want for welch plugs

Brumby Kid · Post by **Brumby Kid** » Mon Sep 19, 2011 4:31 pm

So they are 20mm, and the best is brass. I will remember that for when i rebuild.

Brumby Kid · Post by **Brumby Kid** » Mon Sep 19, 2011 9:35 pm

How much would you say a full engine rebuild would cost. Without skimping on anything. And also how long could one expect for a full rebuild?
Thanks

Silverbullet · Post by **Silverbullet** » Mon Sep 19, 2011 11:14 pm

Depends on what you get I guess. As a rough idea, I got my bores honed, crank linished, new rings and bearings, plus an engine block gasket set (not head gaskets) for $190. Depends where you go too most likely, I went to a local engine shop. Took it all in one morning and got it back the same day. You will most likely need a re-bore though, for the new pistons.

Where's littlewhiteute when you need him, he's got all the answers

Brumby Kid · Post by **Brumby Kid** » Tue Sep 20, 2011 8:26 am

Silverbullet could you please PM me with where you went for what. And if you would recommend them to me. Thanks much apriciated Cam

Brumby Kid · Post by **Brumby Kid** » Tue Sep 20, 2011 2:01 pm

Definately going to rebuild the EA81, its just a matter of when (probably most of it will get done during the christmas holidays). Time to start collecting parts. The upgraded version rather then standard. New pistons, no idea where to get them. Im hoping most can be bought at Autobarn. All advice and tips much aprichiated. Im now off to look at Silverbullets thread and learn as much as i can. Hopefully lunch doesn't end too soon.

Cheers Cam

Silverbullet · Post by **Silverbullet** » Tue Sep 20, 2011 3:52 pm

Yeah go and have a read, just keep in mind mine failed in the first 20k's of driving

mud_king91 · Post by **mud_king91** » Tue Sep 20, 2011 8:27 pm

Improvise if you have to... I fitted celica pistons... Just be sensible to or your brumby will turn out like my rodeo

Brumby Kid · Post by **Brumby Kid** » Tue Sep 20, 2011 9:04 pm

i have only been half following your thread Sam, what happened? Was it the slugishness, and new carbys manifolds etc? What was it in the end?
Mud_King91 sorry no idea what happened to your rodeo, got a thread and or pics?
Cheers Cam

mud_king91 · Post by **mud_king91** » Tue Sep 20, 2011 9:29 pm

Haha nah twas years ago basically it made rex,s seem like datsun,s off the line

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EA81 or EJ in Brumby

Which engine should i use?