Author Topic: Which one of these flywheels should I use on my Franken? (Read 3301 times)

subsonic · « **on:** March 11, 2008, 03:24:20 pm »

I am getting my rotating assembly balanced shortly. I currently have two flywheels on the shelf. I need to pick which one I would like to use.
I will be having it resurfaced before balancing.
I am also strongly considering having it lightened.
This will be going on the Franken that I am building.
The transmission I currently have in my car is 020 ACH. It will need a new 5th gear(oil starvation), and some other work to bring it up to standard. Costs will dictate if I end up swapping it for a different unit.
These two flywheels are different. The smaller one was given to me loose with the 2 engines I bought. The larger one was attached to one of the 1.6td blocks, but I think it had just been put on to check for fit.
One is defintely larger than the other.
The larger one also has 9 bolt holes versus 6 on the other.
The smaller one has grooved ridges around the center opening, while the larger has none.
Will either of these work? Will the larger one be better for a more powerful engine? Any timing mark issues?

subsonic · « **Reply #1 on:** March 11, 2008, 11:09:18 pm »

Someone must know. Is the big one a AAZ?

the caveman · « **Reply #2 on:** March 11, 2008, 11:17:57 pm »

i haven't seen a 6 bolt in a long time but that could be that there aren't very many Mk 1 s here anymore.
i would use the later one. Even if it's lightened it should be a lot more robust than the 6 bolt. i found that the older ones would need resurfacing more than the later ones.

Powered by Spearco · « **Reply #3 on:** March 11, 2008, 11:21:05 pm »

The smaller one is a 200mm flywheel and the larger is a 210mm flywheel.
I believe the 210 is for 1.6-2.0 gas same for the AAZ. The smaller one is
1.5-1.6 diesel :roll: . You could use either one. The 210 has more area of clamping force but the 200 has more weight.

subsonic · « **Reply #4 on:** March 11, 2008, 11:39:33 pm »

Any issues with using the AAZ flywheel on a 1.6td?

Powered by Spearco · « **Reply #5 on:** March 11, 2008, 11:44:18 pm »

None that I could imagine. More clutch options.

fatmobile · « **Reply #6 on:** March 12, 2008, 02:10:25 am »

I've heard some of the gasser flywheels have a different timing mark than the diesels.
Pics of the timing marks?
Are you planning to balance the flywheel and crank together?

subsonic · « **Reply #7 on:** March 12, 2008, 09:59:12 am »

I will be having the entire rotating assembly balanced. Crank, rods, rod bearings, pistons, flywheel, flex plate, all the various bolts, etc..

Where would the timing mark be on the flywheeel? Is this a gasser flywheel?

jimfoo · « **Reply #8 on:** March 12, 2008, 10:10:35 am »

Since you are going to have everything apart, even if the timing mark is off, what's to stop you from making your own?

subsonic · « **Reply #9 on:** March 12, 2008, 10:58:21 am »

Not one thing :lol:

Looking into the future, could this flywheel be used on a 02J ?

zukgod1 · « **Reply #10 on:** March 12, 2008, 11:53:55 am »

I just removed a AUG trans and used a flywheel and pressure plate out of a 8v gasser (210mm) still used my 200mm disk, re installed an ACN trans.
Works fine. Well almost, I have auto adjust clutch cable woes..

TedV · « **Reply #11 on:** March 12, 2008, 12:09:37 pm »

when you have the motor apart, set it to top dead center connected to a trans housing and set your own top dead center on the flywheel. gassers have the ignition timing mark, be it 6 deg BTDC or whatever, marked real nice on the flywheel, and the true TDC cast. Folks not paying attention will set the flywheel to the DTDC mark when doing a timing belt, runs like crap and can screw up a motor.

Gasser bentley man. has the dimensions from true TDC the flywheels ignition timing marks are

foxracer1 · « **Reply #12 on:** March 12, 2008, 06:07:14 pm »

I put a 210mm gasser in my 1.6na. Just looked at the diesel flywheel next to the gasser flywheel. Cause after i had installed it and i realized the mark was different while timing my engine. Just made a mark my self or used a casting mark as a ref i can't remember.