Posted in the 3rd gen parts section...WTB: Stock Flywheel
1 - This statement is true.

2 - An 86-88 N/A flywheel will work on an FD?

3 - To run a light weight flywheel, JUST the rear counter weight has to be changed.

4 - An Automatic FD rear counter weight will work with a 9.5lb flywheel.

5 - The front counter weight on a 5sp (FD) will work with an automatic (FD) rear counter weight and a 9.5lb flywheel.

Please answer true or false...if false please explain your answer.

 

2 - False

3,4,5 - True


guess I forgot to explain-

false b/c the rotor weight. The rear counter weights are built into the flywheel. Since the counter weight is used for heavier rotors that would be too much for a lighter FD or even series 5 rotors.

 

the teacher said, "explain answer.

 

# 1 needs an answer as well. True or False?

I should have been more clear I guess.

should read (and probably # 5 instead of #2)

2 - An 86-88 N/A flywheel will work on an FD as long as you use an automatic rear counter weight.

 

You plan on using a light weight FC flywheel on a FD?

Is that the pettit 9lb thingy? What type is it (what is it made out of). Must be made out of gold for that price.

I have no idea about pettit stuff. Need more info



The front and rear counter weights must be the same.

The counter weights must match the rotor weights.

The rotor weights only change between series.

rear counter weights are built into the flywheel except automatics.


2 - False

see above

 

1 - False - the 86 flywheel (NA or turbo) is heavy
2 - False - stock flywheels have the imbalance built into them to match the rotors and front counterweight. The FD rotors are lighter than the 86-88 rotors, so the balance would be off if you used an 86-88 flywheel/
3 - Neither true nor false - you don't have a separate rear counterwight with a stock flywheel. To run a light flywheel, you replace the stock flywheel with 2 parts - a light flywheel and a rear counterweight from an automatic of the same model (FD auto counterweight, so the balance will be correct).
4 - True
5 - True

-Max

 

In my first statement I assumed he meant rear counter weight from an AT due to the fact they are built in and also same series.

I think that was a trick question

More info was needed!

 

Thanks Max. I saw the quote I posted above and it really confused me...so I figured I'd get some feedback.

 

No I'm not doing this...just asking what in the world 'widebody' was thinking...

Thanks Sesshoumaru, you get an A for participation!

 

kewl

just remember those 4 things i said and your set.

doesn't really apply much to FD but FC's it more important since more swaps/combos are made.

 

Ok, I have a Question then. I have an auto FD. I am putting in a manul engine in my automatic. Is the front counter weight the same for both manual and automatic engines and is the difference just the rear counter weight on the automatic. Meaning I will just need to move the rear auto counter weight to the new manual engine?

 

is this a reman engine? A lot of these have been broken down and the front counter weights have been blank...meaning, the engine was never balanced.

Are you using a light weight flywheel? if you are using a stock flywheel, the counter weight is built in. (I have one I'll sell cheap, if you are not using a reman)

If you are using a light weight flywheel, you can use the auto rear counterweight. But as I stated, if you are using a reman the front "could" be blank and won't be balanced to your auto rear.

I've probably said too much to do any good, but hope I answered your question.

When I built my motor I used a light weight fly and had front and rear counter weights and rotors balanced <-- to anyone with an engine apart, I'd highly recommend this. Nice thing about the rotary engine is the smooth delivery of power, so with everything singing the same song...well, you get the picture.

 

If your going to using a stock flywheel bolt it on

if your using aftermarket an after market flywheel use the AT counter weight with it.


There seems to be alot of shady things remans do -like the rotor weight/letter problem.

 

I have the pettit 9 lber...after I bought it I heard or saw written somewhere that it is the flywheel from an '86...looks like that wasn't true. I'm kind of glad since it means I didn't throw my money away...but I'm sorry for posting false info. I would honestly stay away from a flywheel this light if I were to do it again. Its very difficult to launch and the rpms drop very quickly between shifts.

 

No, the engine is not a reman, I am putting in an original manual engine from another car. In other words the auto counter weight is going on the manual engine then back in my automatic car. Any differance? in front counter weights on manual and auto? I understand the whole rear counter weight deal.

 

bump

 

Use the Counterweight from the Auto motor -
Counterweights are matched to the ROTOR weight - all fd's (13b-rew) Auto & Manual use the same weight rotors so all should use the same front counterweight. On MANUAL trans cars the rear counterweight is built into the flywheel, however AUTO equipped cars don't have a FLYWHEEL but rather, a FLEXPLATE, and therefore have a separate rear Counterweight.

 

So if I understand you, same (front) counter weight auto or manual engines. The difference is just the rear counter weight is used for automatics and flywheels for manuals.

Thanks for the INFO!!