Flywheel differences

[Redder]

I'm obiviously not using the right keywords in my searches.. but my block is a 94 and i've put everything from a 98 on it and am just about to bolt my ax15 up. My question is do I need a 94' Flywheel or will the 98' I got with the trans work fine????

 

[5-90]

I'm obiviously not using the right keywords in my searches.. but my block is a 94 and i've put everything from a 98 on it and am just about to bolt my ax15 up. My question is do I need a 94' Flywheel or will the 98' I got with the trans work fine????

For 1991-up, it should not matter. However, you're crossing the OBD-I/OBD-II line - unless someone else can say it did work, I'd stay with the OBD-I (1991-1995) flywheel to make sure your CKP gets an intelligible signal. I've not yet gone through the informaton I've got on late-model flywheels.

 

[Redder]

I've swapped the entire wiring/dash from the 98' into the 90' with the 94' block, but i'm wondering if theres a balancing difference or something odd like that. any help is greatly appreciated
Red

 

[89xj]

I've swapped the entire wiring/dash from the 98' into the 90' with the 94' block, but i'm wondering if theres a balancing difference or something odd like that. any help is greatly appreciated
Red

searching on napaonline online, 98 and 94 flywheel came up as 501002.

i then searched for a 90 flywheel and got 501004.

 

[5-90]

OK - I'd just make sure that the flywheel is compatible with your control electronics. I know that RENIX is different from OBD, because the sensor works on a different principle and the teeth on the flywheel are different. If you've swapped to OBD electronics, the RENIX flywheel won't work.

All of AMC sixes are internally balanced (I think all I6 engines in general are internally balanced, in fact...) so it's just making sure the flywheel screw pattern will mate up with the crankshaft. All of the 242ci flywheels will swap mechanically, so that's no trouble.

 

[Redder]

Thank you both... finally might make some progress tonight:cheers:

 

[TRAILREADYXJ]

I think all I6 engines in general are internally balanced, in fact...

I believe you're right. In fact, just the design of the straight six almost balances itself naturally. There's a reason companies like BMW perfer them.

I too know the Renix and OBD are different, found that out the hard way years ago. I do believe all the OBD engines use the same type of CPS and Flywheel.

 

[5-90]

I believe you're right. In fact, just the design of the straight six almost balances itself naturally. There's a reason companies like BMW perfer them.

I too know the Renix and OBD are different, found that out the hard way years ago. I do believe all the OBD engines use the same type of CPS and Flywheel.

Yeah - the inline six is essentially two inline three-cylinder engines that counterbalance each other.

And you're probably right on the flywheel break - I just haven't formally confirmed the fact yet. So, I qualify my statement (I hate going out on a limb if I can avoid it...)