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62 Belvedere 318 poly granny cruiser (one day i hope)

Try PUI Interiors for catwhiskers. I just saw this suggestion on FABO.
 
Have a vibration around 50+ that keeps happening in neutral.. hoping it's just the back tires out of balance, gonna take them in tomorrow to get rebalanced.. i don't trust the place that did them the first time and et streets are supposedly horrible for balancing... front tires are new and were balanced
 
Have a vibration around 50+ that keeps happening in neutral.. hoping it's just the back tires out of balance, gonna take them in tomorrow to get rebalanced.. i don't trust the place that did them the first time and et streets are supposedly horrible for balancing... front tires are new and were balanced
Are those radials or bias plies?
 
Got the tires balanced and my god... it's like 5" of weights on both sides of the rims in the same spot.. just insane.. shoulda took a pic... Hoping that fixes it... If not.. next will be the driveshaft.. Had the shaft made at a local place that's supposed to be really good.. for $600 i hope it's not the issue.
 
Got the tires balanced and my god... it's like 5" of weights on both sides of the rims in the same spot.. just insane.. shoulda took a pic... Hoping that fixes it... If not.. next will be the driveshaft.. Had the shaft made at a local place that's supposed to be really good.. for $600 i hope it's not the issue.
That sounds better. Just think, 1 oz. out of balance exerts a force of 8# on the heavy side of the tire. Oftentimes, breaking it down and spinning it 180° and rebalancing can help. I used to spin just the wheels up to see how bad they were. Often times 2+ oz. out of balance all by themselves.
 
That sounds better. Just think, 1 oz. out of balance exerts a force of 8# on the heavy side of the tire. Oftentimes, breaking it down and spinning it 180° and rebalancing can help. I used to spin just the wheels up to see how bad they were. Often times 2+ oz. out of balance all by themselves.

yeah.. et streets are known to be bad, i have never seen this much weight on a tire.. it's like 1#... When i got the tires a friend did me a "Favor" and had a local speedshop mount them.. they put stick on weights half way around the inside of the rim... which makes no sense... and also fell off since they didn't clean the rim at all.. I prefer the press on weights.. will post a pic later..
 
If i still have the vibration i will put on the 14s i used to have on the front and see if it changes with those..
 
K.. Fuel pump changed.. no more weird engine noises, Alignment better, steering wheel is straight.. slight pull to the right but i think it's the crown in the road it's soo small..

Moved the trans a little to the passenger side which got a header tube off the torsion bar.. what a difference in comfort.. way less noise.

Tire balance seems to have helped a bit.. still a bit of vibration, going to check runout on the driveshaft when i get to it...

sooo.. a bit done tonight :)
 
K.. Fuel pump changed.. no more weird engine noises, Alignment better, steering wheel is straight.. slight pull to the right but i think it's the crown in the road it's soo small..

Moved the trans a little to the passenger side which got a header tube off the torsion bar.. what a difference in comfort.. way less noise.

Tire balance seems to have helped a bit.. still a bit of vibration, going to check runout on the driveshaft when i get to it...

sooo.. a bit done tonight :)
All going in a positive direction.
 
Drove in today.. so much nicer to drive.. but i have a bit of a miss at cruise speed, pretty sure it's carb related. Going to look for a cheap holley to replace this street demon. Can get a used 650 for about as much as a tuning kit for this thing..

Before i do any of that i'm going to throw my old points dist in just to test (since it's free) to see if that second gear stutter stops. Last time i put that dist in the car seemed to actually run smoother than with the pertronix, probably just mental though..
 
If you have that much weight on the tires you have to spin them 180 degrees to see if the tires are the problem. If they are the problem they must be replaced. You will never get the bad vib out with tires like that. Do you have another set of tires/wheels laying around just to bolt them on and try it out?
 
If you have that much weight on the tires you have to spin them 180 degrees to see if the tires are the problem. If they are the problem they must be replaced. You will never get the bad vib out with tires like that. Do you have another set of tires/wheels laying around just to bolt them on and try it out?
yeah i have some old rock hard 14s that would be good enough to test with
 
Read the entire thread this morning. Great Car/Awesome Work. For the drive shaft...jack the rear up, place securely on your best jack stands. Remove the tires...install all lug nuts to keep the drums from leaving. Run to speed and see if the vibration is still there...if yes...take off the drums (don't push on the brakes) and repeat. You could have a drum out of balance. If the vibration is gone after taking the rear tires off...that was your problem. If the vibration is still there after taking off the brake drums. I would agree, the driveshaft needs rebalanced. Just a thought.
 
Read the entire thread this morning. Great Car/Awesome Work. For the drive shaft...jack the rear up, place securely on your best jack stands. Remove the tires...install all lug nuts to keep the drums from leaving. Run to speed and see if the vibration is still there...if yes...take off the drums (don't push on the brakes) and repeat. You could have a drum out of balance. If the vibration is gone after taking the rear tires off...that was your problem. If the vibration is still there after taking off the brake drums. I would agree, the driveshaft needs rebalanced. Just a thought.
yeah.. i just need to get off my butt and do it :) The vibration isn't bad at all right now, i just know it's there. The driveshaft was made by a very good place that is known for doing great work so i doubt it's an issue.. i will get under with a dial indicator and check for any runout, or maybe a slightly bent yoke or something stupid. Car is much nicer to drive right now..

The 4.30s are already starting to wear on me.. but i hate that thought of taking off with 3.55s... meh... just not the same :)
 
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