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flywheel / crankshaft question.

Posted: Sat Jul 30, 2011 6:23 pm
by Bobbybedtime
Hi,
Hoping you can help, gone and confused myself with too many crankshafts in the garage and can't remember how to put back together ... even got three v8 manuals and still not absolutely sure.

Anyway, here goes ... its a manual gearbox goning on a 3.9 engine, changed from a 3.5. Does the fly wheel bolt straight on to the cranks shaft with out any spacers?

In a box which I used to keep associated stuff together is a spacer or adapter with six bolt holes which line up with those on the crank shaft, it also has four (from memory) other threaded holes. Also in the box is a thin plate, think its called a reinforcing plate. The bits in the box, are they for an auto box?

Thanks,
BBT.

Posted: Sun Jul 31, 2011 4:47 pm
by davemgb
Is the reinforcing plate the same size as the spacer?
Is the spacer about 25mm thick?
Both for an automatic from memory.

Non of my manual flywheels needed any spacer on the end of the crank and all have offset bolt holes so they only fit in one position.

Dave

Posted: Mon Aug 01, 2011 9:37 am
by mgbv8
sOUNDS A BIT LIKE A DISMANTLED FLEX PLATE ???

dAMN THIS STICKY CAP LOCK KEY....

Posted: Mon Aug 01, 2011 12:11 pm
by DEVONMAN
As others have said, you don't need any spacers when you bolt a manual flywheel onto a rover crank. The bits you describe are for an auto flexplate.

If the 3.9 engine was originally an automatic then it will need a new spigot bush to match the front shaft of the manual gearbox.

Cheers Denis

Posted: Tue Aug 02, 2011 8:30 pm
by Bobbybedtime
Thanks for the replies, makes things eaiser to bolt straight on.
Good call Dennis, I had purchased a new spigot bush for a 3.9 manual and as you say it is a different size to the one in the end of the crank... if only it would come out, sure it will eventually.
Regards,
BBT.

Posted: Tue Aug 02, 2011 8:37 pm
by DEVONMAN
Have you tried packing it with grease and bashing a good fit bar into the hole. Some tape around a smaller bar usually works also.

Some people have used a small rawlplug to remove the bush.

Posted: Wed Aug 03, 2011 5:48 am
by unstable load
Wet newspaper stuffed in tight and followed by a tight fitting rod and a good belt from a buggering stick should do it.

Re: flywheel / crankshaft question.

Posted: Wed Aug 03, 2011 11:43 am
by harvey
Bobbybedtime wrote:In a box which I used to keep associated stuff together is a spacer or adapter with six bolt holes which line up with those on the crank shaft, it also has four (from memory) other threaded holes. Also in the box is a thin plate, think its called a reinforcing plate. The bits in the box, are they for an auto box?

Thanks,
BBT.
If you're going manual you won't need the spacer/adapter you mention having, so if you want to put it to good use "koopsterman" on this very forum is in need of said item.