flywheel again. :)
11-28-2000, 03:06 PM
#1
The missing moderator
Thread Starter
Join Date: Aug 2000
Posts: 2,019
lightened flywheel... that's supposedly balanced... there are drill marks.
The flywheel was balanced withouth the PP or the clutch disc. But that shouldn't matter b/c they do not rebalance when you get a clutch job done.
Anyways....
Now the problem: during acceleration in certain rpm ranges, I can feel
vibration from the gas peddle, steering wheel, and seat. It's not the
tires out of balanced as that's been balanced. Plus usually only vibration
is felt from the steering wheel if it's just the tires.
My next thought was an out of balance flywheel. But I thought... if it's
an out of balance flywheel, shouldn't it vibrate as well if I just held
the rev at 3000rpm for example? It doesn't do that, only under
acceleration does it vibrate. What could it be? BTW I do have solid engine mounts... poly mounts.
-Shing
The flywheel was balanced withouth the PP or the clutch disc. But that shouldn't matter b/c they do not rebalance when you get a clutch job done.
Anyways....
Now the problem: during acceleration in certain rpm ranges, I can feel
vibration from the gas peddle, steering wheel, and seat. It's not the
tires out of balanced as that's been balanced. Plus usually only vibration
is felt from the steering wheel if it's just the tires.
My next thought was an out of balance flywheel. But I thought... if it's
an out of balance flywheel, shouldn't it vibrate as well if I just held
the rev at 3000rpm for example? It doesn't do that, only under
acceleration does it vibrate. What could it be? BTW I do have solid engine mounts... poly mounts.
-Shing
11-28-2000, 03:13 PM
#2
Well consider that out of balance wheels only make vibrations at xxxx speeds so I think the same could be said for the OUB(out of balance) flywheel?? You say it makes the car vib at 3000 rpms when accelerating, does it also vib when you let off the gas though 3000 rpms??
I think the stock flywheel has enough mass not to require the PP to be balanced w/ it, but as the weight gets lighter and lighter, the balancing might become more important. The PP is a pretty heavy piece of metal in itself. What was the before and after weights of the flywheel?
Of course w/ the solid mounts, your 4-clinder might just be creating a natural resonance that happens at 3000 rpms. Does anyone else w/ the same set-up mention the same problems??
I think the stock flywheel has enough mass not to require the PP to be balanced w/ it, but as the weight gets lighter and lighter, the balancing might become more important. The PP is a pretty heavy piece of metal in itself. What was the before and after weights of the flywheel?
Of course w/ the solid mounts, your 4-clinder might just be creating a natural resonance that happens at 3000 rpms. Does anyone else w/ the same set-up mention the same problems??
Originally posted by Shingles
lightened flywheel... that's supposedly balanced... there are drill marks.
The flywheel was balanced withouth the PP or the clutch disc. But that shouldn't matter b/c they do not rebalance when you get a clutch job done.
Anyways....
Now the problem: during acceleration in certain rpm ranges, I can feel
vibration from the gas peddle, steering wheel, and seat. It's not the
tires out of balanced as that's been balanced. Plus usually only vibration
is felt from the steering wheel if it's just the tires.
My next thought was an out of balance flywheel. But I thought... if it's
an out of balance flywheel, shouldn't it vibrate as well if I just held
the rev at 3000rpm for example? It doesn't do that, only under
acceleration does it vibrate. What could it be? BTW I do have solid engine mounts... poly mounts.
-Shing
lightened flywheel... that's supposedly balanced... there are drill marks.
The flywheel was balanced withouth the PP or the clutch disc. But that shouldn't matter b/c they do not rebalance when you get a clutch job done.
Anyways....
Now the problem: during acceleration in certain rpm ranges, I can feel
vibration from the gas peddle, steering wheel, and seat. It's not the
tires out of balanced as that's been balanced. Plus usually only vibration
is felt from the steering wheel if it's just the tires.
My next thought was an out of balance flywheel. But I thought... if it's
an out of balance flywheel, shouldn't it vibrate as well if I just held
the rev at 3000rpm for example? It doesn't do that, only under
acceleration does it vibrate. What could it be? BTW I do have solid engine mounts... poly mounts.
-Shing
11-28-2000, 03:22 PM
#3
The missing moderator
Thread Starter
Join Date: Aug 2000
Posts: 2,019
well only during aceleration, not steady cruise, not decleration... that's why I am starting to think it's not the flywheel but rather the engine itself... maybe cause of the solid mounts.
I can't get anyone else on any other board to answer anything... probably too specific for those A&H boys.
Well, I say 3000rpm cause when I change gears from 2-3, I am usually starting at 3k in 3rd, that's where I usually notice it.
It wasn't lightened that much... OEM is about 18lbs, after is maybe 16lbs, 15 at the least... so it's not ultralight by any means....
-Shing
I can't get anyone else on any other board to answer anything... probably too specific for those A&H boys.
Well, I say 3000rpm cause when I change gears from 2-3, I am usually starting at 3k in 3rd, that's where I usually notice it.
It wasn't lightened that much... OEM is about 18lbs, after is maybe 16lbs, 15 at the least... so it's not ultralight by any means....
-Shing
Originally posted by Jeff92se
Well consider that out of balance wheels only make vibrations at xxxx speeds so I think the same could be said for the OUB(out of balance) flywheel?? You say it makes the car vib at 3000 rpms when accelerating, does it also vib when you let off the gas though 3000 rpms??
I think the stock flywheel has enough mass not to require the PP to be balanced w/ it, but as the weight gets lighter and lighter, the balancing might become more important. The PP is a pretty heavy piece of metal in itself. What was the before and after weights of the flywheel?
Of course w/ the solid mounts, your 4-clinder might just be creating a natural resonance that happens at 3000 rpms. Does anyone else w/ the same set-up mention the same problems??
Well consider that out of balance wheels only make vibrations at xxxx speeds so I think the same could be said for the OUB(out of balance) flywheel?? You say it makes the car vib at 3000 rpms when accelerating, does it also vib when you let off the gas though 3000 rpms??
I think the stock flywheel has enough mass not to require the PP to be balanced w/ it, but as the weight gets lighter and lighter, the balancing might become more important. The PP is a pretty heavy piece of metal in itself. What was the before and after weights of the flywheel?
Of course w/ the solid mounts, your 4-clinder might just be creating a natural resonance that happens at 3000 rpms. Does anyone else w/ the same set-up mention the same problems??
Originally posted by Shingles
lightened flywheel... that's supposedly balanced... there are drill marks.
The flywheel was balanced withouth the PP or the clutch disc. But that shouldn't matter b/c they do not rebalance when you get a clutch job done.
Anyways....
Now the problem: during acceleration in certain rpm ranges, I can feel
vibration from the gas peddle, steering wheel, and seat. It's not the
tires out of balanced as that's been balanced. Plus usually only vibration
is felt from the steering wheel if it's just the tires.
My next thought was an out of balance flywheel. But I thought... if it's
an out of balance flywheel, shouldn't it vibrate as well if I just held
the rev at 3000rpm for example? It doesn't do that, only under
acceleration does it vibrate. What could it be? BTW I do have solid engine mounts... poly mounts.
-Shing
lightened flywheel... that's supposedly balanced... there are drill marks.
The flywheel was balanced withouth the PP or the clutch disc. But that shouldn't matter b/c they do not rebalance when you get a clutch job done.
Anyways....
Now the problem: during acceleration in certain rpm ranges, I can feel
vibration from the gas peddle, steering wheel, and seat. It's not the
tires out of balanced as that's been balanced. Plus usually only vibration
is felt from the steering wheel if it's just the tires.
My next thought was an out of balance flywheel. But I thought... if it's
an out of balance flywheel, shouldn't it vibrate as well if I just held
the rev at 3000rpm for example? It doesn't do that, only under
acceleration does it vibrate. What could it be? BTW I do have solid engine mounts... poly mounts.
-Shing
11-28-2000, 03:28 PM
#4
Can you replicate the vibs just by having the car parked? ie.. open hood and push on the throttle linkage?? I agree, if the flywheel was balanced right 16lbs. is not too light. Conserative actually. You could try replacing the mounts and see if that's it. PITA though.
11-28-2000, 03:35 PM
#5
The missing moderator
Thread Starter
Join Date: Aug 2000
Posts: 2,019
well mounts are $500. =P they are custom for the swap.
argh.. this sucks.. I guess I'll change my oil tonigth and see if there are metal shavings... if it's out of balance, surely by not the bearings would have eat some...
-shing
"Please no metal flakes."
argh.. this sucks.. I guess I'll change my oil tonigth and see if there are metal shavings... if it's out of balance, surely by not the bearings would have eat some...
-shing
"Please no metal flakes."
11-28-2000, 03:44 PM
#8
You want to trade problems right about now??
Still sucks?
Still sucks?
Originally posted by Shingles
nope... counter weights and such on the crank for balancing...
This sucks.
Originally posted by Jeff92se
Do these Hondas have a balance shaft? Maybe it's somehow related to that??
Do these Hondas have a balance shaft? Maybe it's somehow related to that??
This sucks.
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