Wrong counter weight sound
#1
Wrong counter weight sound
Has anyone run a rotary with the wrong counter weight on it? What noise does it make?
I have just gottenb everything together with my S4 13B and there was a question about the counter weight.
Well, the enginbe make a strage werring noise. Kind of like a throughout bearing noise, but different. (Yes, I did change the throughout bearing).
Thanks
I have just gottenb everything together with my S4 13B and there was a question about the counter weight.
Well, the enginbe make a strage werring noise. Kind of like a throughout bearing noise, but different. (Yes, I did change the throughout bearing).
Thanks
#4
Banned. I got OWNED!!!
does anyone have a correct counter wight and flywheel chart for 12A engines?
This is something that i am sure menbers can use.
The weights below for the fwheel were taken from the mazdatrix site.
1985 12A.
Counter weigth = weight LBS _____?
Flywheel weight lbs ____26_____?
1984 12A .
Counter weigth = weight LBS _____?
Flywheel weight lbs _____26____?
1983 12A
Counter weigth = weight LBS _____?
Flywheel weight lbs ___26______?
1982 12A .
Counter weigth = weight LBS ____?
Flywheel weight lbs ____23____?
This is something that i am sure menbers can use.
The weights below for the fwheel were taken from the mazdatrix site.
1985 12A.
Counter weigth = weight LBS _____?
Flywheel weight lbs ____26_____?
1984 12A .
Counter weigth = weight LBS _____?
Flywheel weight lbs _____26____?
1983 12A
Counter weigth = weight LBS _____?
Flywheel weight lbs ___26______?
1982 12A .
Counter weigth = weight LBS ____?
Flywheel weight lbs ____23____?
#5
Senior Member
iTrader: (4)
Join Date: Apr 2004
Location: Charleston, SC
Posts: 340
Likes: 0
Received 0 Likes
on
0 Posts
MAZDATRIX has rotor weight stuff on their website also.
Quick snapshot: 79-80 are by themselves, 81-82 have light flywheel and heavy rotors, 83 has heavy rotors and flywheel, 84-85 have heavy flywheel and light rotors. Hot ticket is 81-82 flywheel & c/wt on 84-85 rotors and e-shaft.
On the whirring sound; are you sure the front thrust bearing didn't get pinched when the counterweight was off? Easy to do, I understand. I understand a quick check is to see if the front e-shaft pulley is lined up with the water pump pulley; if it's off an appeciable amount either way then the thrust bearing is furschnorkeled.
Quick snapshot: 79-80 are by themselves, 81-82 have light flywheel and heavy rotors, 83 has heavy rotors and flywheel, 84-85 have heavy flywheel and light rotors. Hot ticket is 81-82 flywheel & c/wt on 84-85 rotors and e-shaft.
On the whirring sound; are you sure the front thrust bearing didn't get pinched when the counterweight was off? Easy to do, I understand. I understand a quick check is to see if the front e-shaft pulley is lined up with the water pump pulley; if it's off an appeciable amount either way then the thrust bearing is furschnorkeled.
Trending Topics
#9
Junior Member
Join Date: Jan 2004
Location: Merritt Island,FL
Posts: 9
Likes: 0
Received 0 Likes
on
0 Posts
I have came across the counterweight problem,
I had a 86 13b in a 82 GSL with light flywheel
and when I put it together I ended up using the
front and rear counterweights off a 84 GSLSE motor
by mistake and It had a harmonic vibration and
once in a while it would over rev by itself so after
not even 20 miles on it I bent the shaft and started
to backfire through the carb.Now I have a 12A with
the light flywheel and the rear counterweight from
mazdatrix.
Alexis
I had a 86 13b in a 82 GSL with light flywheel
and when I put it together I ended up using the
front and rear counterweights off a 84 GSLSE motor
by mistake and It had a harmonic vibration and
once in a while it would over rev by itself so after
not even 20 miles on it I bent the shaft and started
to backfire through the carb.Now I have a 12A with
the light flywheel and the rear counterweight from
mazdatrix.
Alexis
#10
Old [Sch|F]ool
Originally posted by Jeff20B
'83-'85 have lightest rotors and 27LBS flywheel. '81'82 heavy rotors and lightest flywheel. '79-'80 have heavy everything.
peejay, am I right?
'83-'85 have lightest rotors and 27LBS flywheel. '81'82 heavy rotors and lightest flywheel. '79-'80 have heavy everything.
peejay, am I right?
The difference in rotor weight isn't "an ounce or so". It's *much* different.
#12
Ok, I swaped out the trany and I still have the noise. I can't figure this one out. I have swaped out just about everything and I still have the same noise. Well, I think I will be seeing the Atkins folks next week. I will ask them what they think. I will post the results.
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM
The1Sun
1st Generation Specific (1979-1985)
7
09-18-15 07:13 PM
jakeishness
2nd Generation Specific (1986-1992)
11
09-11-15 11:33 AM
The1Sun
1st Generation Specific (1979-1985)
0
09-07-15 10:21 PM