EA82 to EA81 yes thats correct

smudge1 · Post by **smudge1** » Sun Apr 23, 2006 5:56 pm

Hi there, I posted here last year and was about to swap out the motor and box EA81 with an Ea 82 + 5 speed box into an 1983 Brumby. well job done alls well of sorts ( love the 5 speed box). However I am not real happy with the EA82 as it has burst a head gasket. So having rebuilt the old EA 81 engine I am now considering dropping it back in. The reason for this is I have had to make pretty big changes to the chassi ( which still need to be passed by an engineer) and from what I can tell the EA81 is just as good once one has made simple mods. What I need to know is does the EA82 Flywheel need re drilling to swap and what is involved in swapping the dissy over. Also can anyone tell me where to get a webber carbi in the albury area plus plate. Any help is appresiated.

tim_81coupe · Post by **tim_81coupe** » Sun Apr 23, 2006 6:46 pm

The flywheel is a bolt-on. I ran my wagon with an EA81 and 5 speed for about 6 months before going to an EA82 motor, a step I regret. From memory you use the EA81 bolts with the EA82 flywheel, I seem to remember the EA82 bolts being a slightly different thread.

As for the dizzy, I don't know but it is my understanding that fellow board member BaronVonChickenPants has done this to an EA81 in the past.

smudge1 · Post by **smudge1** » Sun Apr 23, 2006 7:24 pm

Thanks very much mate seems I can do this in a day. I hope your anzac days as good, cheers.

smudge1 · Post by **smudge1** » Sun Apr 23, 2006 7:26 pm

Just out of interest why do u regret the swap from 81 to 82. for me its no space to work and 16.5litrs to the 100k's

AndrewT · Post by **AndrewT** » Sun Apr 23, 2006 8:21 pm

I think I would regret doing that too. While the EA82 is more powerful, it is still widly regarded as an utterly gutless motor. If your going to the trouble of cutting the chassis rails put something decent in there!
Or better yet, slip in an EJ which fits without modding the chassis rails at all - do I hear EJ22 ?

BaronVonChickenPants · Post by **BaronVonChickenPants** » Sun Apr 23, 2006 9:42 pm

If you have a 9" EA81 flywheel I would use that with the EA82 clutch and gearbox, that way you keep your timing marks and don't need to grind out the bell housing on the motor.

If you have an 8" EA81 flywheel then I'd go with the EA82 flywheel.

As for the dizzy all you have to do is cut off one of the "ears" and fit the EA81 drive cog to the EA82 dizzy and you're done.

Jordan.

tim_81coupe · Post by **tim_81coupe** » Sun Apr 23, 2006 10:03 pm

smudge1 wrote:Just out of interest why do u regret the swap from 81 to 82. for me its no space to work and 16.5litrs to the 100k's

For me its mainly that I had to go to so much effort to fit it for not a lot of gain. Most of the gain I noticed was from the Weber that the 82 was fitted with.

Economy is the same if not better than the old 81 and it definitely goes harder. But worrying about timing belts and having very little clearance between rocker covers and chassis rails leaves me a bit worried. I mainly feel an 81 is a better motor to depend on.

steptoe · Post by **steptoe** » Mon Apr 24, 2006 2:12 am

Yeah, someone up there is right. Watch the holes and bolts flywheel to crank. The holes in the flywheel vary between EA81 and EA82 as do the non threaded shank of the bolts to crank

I am running EA81 8 inch clutch flywheel on my EA81 with the five speed behind it. COUGH, COUGH... no I'm not I got the EA81 four speed pressure plate. The five speed is 9 " and won't bolt to my original flywheel sorry

I am using the five speeds clutch pressure plate and throw out bearing and carrier.

The friction plate is a 1.6 l petrol Gemini part number R7926W 8"

For future mods (like this turbo idea I am working on) I have a flywheel out of a late model Brumby which had EA81 but 9" clutch hanging of it.This is where I noticed the bolt and holes differences after being alerted to fact by someone in here. To use this requires no grinding or spacing coz its out of an EA81 Brumby (we hope ! )

tim_81coupe · Post by **tim_81coupe** » Mon Apr 24, 2006 2:32 am

jono wrote:To use this requires no grinding or spacing coz its out of an EA81 Brumby (we hope ! )

There is a difference between 8" and 9" EA81 bellhousings. To use the 9" flywheel in place of an 8" you'll need to grind a small amount off the bottom on both sides... you'll see when you get there.

Its not a big deal really, I had to do it on my EA81 when I went for the 5 speed swap.

steptoe · Post by **steptoe** » Mon Apr 24, 2006 11:50 pm

Uh oh - my apologies there is nothing like experience. Thanks Tim, I got the bits, not done it yet. You are the first to say there is a difference in the EA81 bellhousings between 8 and 9 inch clutches. I previously understood it that if using EA82 flywheel the grinding had to take place. Now I start to think EA81 had two differing bellhousings , Thanks Tim

subanator · Post by **subanator** » Mon Apr 24, 2006 11:55 pm

I used the EA82 flywheel and bolts. No worries about timing marks, they are the same. Cant get this wrong as the bolts are spaced to a specific way for this to line up.

Reason, EA82 flywheel suits bigger 9" clutch to the MY 8" one.
I used the Daiken clutch, new pressure plate and thrust bearing (see other posts)

Yes, I had to file/grind the bottom of the MY bell housing too.

Original My starter motor bolts up to EA82 flywheel ok.

Cheers, Roger.

kiwi_subaru · Post by **kiwi_subaru** » Thu Jun 01, 2006 7:25 pm

So this means an EA71 flywheel will fit onto a EA82, as EA71 will fit an EA81. I need a smaller flywheel to fit my VW gearbox on my off roader