front cover componants 13b rew
#1
savanna
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front cover componants 13b rew
can anyone post a picture or list a link showing the order in which the componants under the front cover are installed much appreciated
#2
A Fistfull of Dollars!
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Originally Posted by savana
can anyone post a picture or list a link showing the order in which the componants under the front cover are installed much appreciated
#3
Mr. Links
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Grab a Factory Service Manual (FSM):
http://www.iluvmyrx7.com/3rd_gen_manuals.htm
It will be basically the same for any of the years in that area.
http://www.iluvmyrx7.com/3rd_gen_manuals.htm
It will be basically the same for any of the years in that area.
#6
RX-7 Bad Ass
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BTW, I'm pretty sure there's a VERY thin washer on the back of the counterweight. It usually stays stuck to the counterweight so you never really notice it .
I believe Dubulup has it spot-on, though. BTW, that's a good thing to have documented the stuff under the front cover - I remember confusion with that the first time I rebuilt a motor, and the shop manual is a bit tricky to tell orientation and stuff.
Dale
I believe Dubulup has it spot-on, though. BTW, that's a good thing to have documented the stuff under the front cover - I remember confusion with that the first time I rebuilt a motor, and the shop manual is a bit tricky to tell orientation and stuff.
Dale
#7
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hey, just a quick question about the counterweight......i know it is used to balance the whole rotating assembly but what exactly is it counteracting? I would think since there are two rotors that they would balance out, but they may not be completely out of phase with eachother. thanks.
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#8
development
Originally Posted by DaleClark
BTW, I'm pretty sure there's a VERY thin washer on the back of the counterweight. It usually stays stuck to the counterweight so you never really notice it .
I believe Dubulup has it spot-on, though. BTW, that's a good thing to have documented the stuff under the front cover - I remember confusion with that the first time I rebuilt a motor, and the shop manual is a bit tricky to tell orientation and stuff.
Dale
I believe Dubulup has it spot-on, though. BTW, that's a good thing to have documented the stuff under the front cover - I remember confusion with that the first time I rebuilt a motor, and the shop manual is a bit tricky to tell orientation and stuff.
Dale
Yeah, thought about mentioning it...but since they usually say on (I've tried to get it off and couldn't, haha), I didn't want anyone going out and looking for it, thinking they lost it.
Originally Posted by saxman47
hey, just a quick question about the counterweight......i know it is used to balance the whole rotating assembly but what exactly is it counteracting? I would think since there are two rotors that they would balance out, but they may not be completely out of phase with eachother. thanks.
I used a light weight fly, and had the rotors and front and rear weights balanced together.
#9
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Originally Posted by dubulup
The rear counter weight...built into the stock flywheel.
I used a light weight fly, and had the rotors and front and rear weights balanced together.
I used a light weight fly, and had the rotors and front and rear weights balanced together.
When you use a light weight flywheel, you generally use the counterweight off of an auto car. Since this weight was designed for the BREW, you don't have to have the entire assembly balanced (although, it definately can't hurt. Especially if you're planning on revving extremely high, or producing crazy HP numbers).
-Rob
#13
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Originally Posted by dubulup
0120 - 2nd needle bearing
0121 - counter weight and key
0122 - oil chain sprocket
0124 - OMP gear and pulley boss. (stack up)
0121 - counter weight and key
0122 - oil chain sprocket
0124 - OMP gear and pulley boss. (stack up)
#14
Rotary Freak
Originally Posted by saxyman990
Not exactly... in general: (very simplified) the front counterweight offsets the inertia of the rear rotor. The rear counterweight offsets the front rotor.
On a related topic, anyone know if the thrust washers and cover plate on the previous series interchange with the FD?
#15
development
Originally Posted by CMonakar
These pics are very helpful. Thanks.
Originally Posted by billyboy
A question, what is the difference between the front counterweights on automatic and manual cars - just drillings? Using the above reasoning, can't see why Mazda would need to produce two separate parts unless it was related to the flywheel/flexplate differences.
On a related topic, anyone know if the thrust washers and cover plate on the previous series interchange with the FD?
On a related topic, anyone know if the thrust washers and cover plate on the previous series interchange with the FD?
#16
Rotary Freak
Front counterweights
N3A7-11-D61 (MT)
N3A8-11-D61 (AT)
Always in the past when putting on an aftermarket flywheel, just used a rear counterweight from the autos with no regard to the front counterweight and haven't noticed any ill effects - but maybe I was wrong.
The engine I've got has suffered an oil pump failure and the needlle bearings have disintegrated and damaged the front counterweight. The engine I'm getting parts from is a JDM auto import but will be used with a standard manual flywheel.
Given the propensity of these things to **** themselves would prefer to leave nothing to chance.
N3A7-11-D61 (MT)
N3A8-11-D61 (AT)
Always in the past when putting on an aftermarket flywheel, just used a rear counterweight from the autos with no regard to the front counterweight and haven't noticed any ill effects - but maybe I was wrong.
The engine I've got has suffered an oil pump failure and the needlle bearings have disintegrated and damaged the front counterweight. The engine I'm getting parts from is a JDM auto import but will be used with a standard manual flywheel.
Given the propensity of these things to **** themselves would prefer to leave nothing to chance.
#17
Rotary Freak
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