Recess opening in flywheel diameter?

[wire2]

I'm fitting a new triangular drive coupling from an alpha gen 2 to my '84 5.7, with a 12" flywheel.
I got around the lesser diameter with 3 new bolt holes in the coupler but now I see the raised edges of the rubber bumpers sit on top of the flywheel face.
My recess opening is 5-7/8", the rubber edges appear to want 6-3/8".

Can anyone confirm that measurement? No rush, thanks

 

[Bt Doctur]

Re: Recess opening in flywheel diameter?

Why all that work, just replace with the oem type.

 

[Don S]

Re: Recess opening in flywheel diameter?

The triangular coupler is for the 14" flywheels.

 

[krisnowicki]

Re: Recess opening in flywheel diameter?

the triangular coupler "i think" is for the 14" flywheel.

 

[wire2]

Re: Recess opening in flywheel diameter?

Why all that work, just replace with the oem type.

My flywheel is 12", can't be changed.
There's no gen 2 coupler for it. (That I know of)

I've already located the coupler center on a mill and drilled the 3 bolt holes, now just need to enlarge the recess on a lathe.
If no one has one in the open to measure, I'll cut a paper template to try first.

 

[Bondo]

Re: Recess opening in flywheel diameter?

an alpha gen 2 to my '84 5.7, with a 12" flywheel. There's no gen 2 coupler for it. (That I know of)

If I'm not mistaken,.........
The original Coupler that's on an '84 Merc. 350 put's the Splines right where they belong,.......
Even with the latest Alphas..........

Why go to the flexplate style,..??.....

 

[f_inscreenname]

Re: Recess opening in flywheel diameter?

Why don't you get a universal like from here http://marineengineparts.com/shopsite_sc/store/html/page92.html then trying to drill one yourself. If you are off by a hair your screwed. With those all the work is done for you.