My rear end has a heartbeat

[moparedtn]

Logic: what has changed since last time all was well (with no "heartbeat")?
Tires and wheels off/on the car?
There's your culprit.

 

[dart6]

Logic: what has changed since last time all was well (with no "heartbeat")?
Tires and wheels off/on the car?
There's your culprit.

Car is new to me

 

[Pecos Bill]

Bent axle flange, possibly, or wheel. Tire making contact with the wheel tub?

 

[hashmaker]

You have a broken tooth in the ring gear, I have heard that sound a few times.

 

[kiwigtx]

Flat spots on the tyres from lack of use or lack of burnouts.

Pump up the tyres to max pressure and go for a blast down to McDonalds on the Waikato Expressway and back - problem will be solved.

 

[dart6]

You have a broken tooth in the ring gear, I have heard that sound a few times.

Flat spots on the tyres from lack of use or lack of burnouts.

Pump up the tyres to max pressure and go for a blast down to McDonalds on the Waikato Expressway and back - problem will be solved.

Hopefully not. I haven't had a chance to get to the car yet. I'll have a chance to get to the car during the week and go through the suggestions given. I will update what i find

 

[khryslerkid]

Hopefully not. I haven't had a chance to get to the car yet. I'll have a chance to get to the car during the week and go through the suggestions given. I will update what i find

How fast were you going in the video?

Grab the drive shaft at the rear u-joint and push up and down and in and out. You don't want any play there.

 

[Photon440]

My original 8.75 in my road runner somehow had the pinion shaft come out of place and was banging the inside of the housing.

 

[kiwigtx]

Hopefully not. I haven't had a chance to get to the car yet. I'll have a chance to get to the car during the week and go through the suggestions given. I will update what i find

Do you want me to come on over next weekend and have a listen in person? I assume you're in South Auckland.

 

[eldubb440]

Kiwi's rear end once had a heartbeat......... then he farted

 

[kiwigtx]

Kiwi's rear end once had a heartbeat......... then he farted

...and registered on the Richter Scale.

 

[33 IMP]

Do you want me to come on over next weekend and have a listen in person? I assume you're in South Auckland.

OP, I would take him up on that offer in a heartbeat!!! Best have a case of beer on hand (or whatever spirit he preferrs.)

 

[1 Wild R/T]

OP, I would take him up on that offer in a heartbeat!!! Best have a case of beer on hand (or whatever spirit he preferrs.)

And prepare yourself for a demonstration of the art of the burnout...

 

[dart6]

How fast were you going in the video?

Grab the drive shaft at the rear u-joint and push up and down and in and out. You don't want any play there.

About 30mph

 

[dart6]

Do you want me to come on over next weekend and have a listen in person? I assume you're in South Auckland.

Thanks for the offer but i think i'll be ok once i put the car on stands. The cars in Ramarama

 

[kiwigtx]

Thanks for the offer but i think i'll be ok once i put the car on stands. The cars in Ramarama

Not far from me...however putting on jack-stands will help narrow down the search. If you get an assistant to rev the car up and down gently, you should be able to trace the noise.

Just please make sure that the car is stable on the stands. I know a guy who was dragged under his Mark 3 Zephyr many years ago....on his back, and by his chin. Mind you...same guy used a set of vice-grips for a makeshift steering wheel on a gravel road.

 

[dart6]

Not far from me...however putting on jack-stands will help narrow down the search. If you get an assistant to rev the car up and down gently, you should be able to trace the noise.

Just please make sure that the car is stable on the stands. I know a guy who was dragged under his Mark 3 Zephyr many years ago....on his back, and by his chin. Mind you...same guy used a set of vice-grips for a makeshift steering wheel on a gravel road.

Yes that was what i had in mind

 

[khryslerkid]

By the sound of it you probably won't even need to start the car. Jack up the rear and turn one of the wheels back and forth. Also see if there is any play in the pinion shaft at the yoke. A bad bearing or something broken or something loose will be noticeable.

 

[dart6]

Today we put the car on stands but couldn't duplicate the sound. Driveshaft and wheel bearings had no play. Three wheels had wheel nuts with 3/4 hex with one of rears wearing 13/16 hex all 4 wheels 60 degrees

 

[khryslerkid]

Could be a tire with separated cords. Sometimes you'll see a wavy tread pattern when it happens.