thump while accelerating

[rmsmith]

1991 honda accord lx 2dr 191k mi. Very loud thumping noise coming from front right wheel area. Noise only occurs after about 15 min of driving. First noticed at about 50-60 mph sounds kind of like a sewing machine at that time with several thumps per sec, that was about 2 months ago so i chalked it up to worn cv axle and would replace eventually. but now from a stop the thumps are very violent(shaking the dash, steering wheel)occuring about once per second and gradually increase in speed and lower in noise as speed increases. Just replaced psgr cv axle. 2 days ago, Noise was occuring before that was replaced. And driver cv axle is 3 mo old. Took to dealer and they said the rt front tire belt was shifted. Took tire to tire shop to get replaced and noise still occurs. Dealer also says cv axles look fine. I asked about wheel bearings and they said there is no play in the wheel, and also it isn't a roar, it's a thump. Like a troll under the hodd hitting my car with a 2lb sledgehammer.

[jeffcoslacker]

Need to look hard at your motor mounts and subframe (engine cradle) to body mounts. Seen bolts shear off the sub mounts and cause something like this.

Make sure the exhaust isn't contacting the floorpan too, that'll produce some alarming noises.

[rmsmith]

The motor mounts have been replaced. Noise still occurs, but now only noticeable when going straight, it is worse when turning right, and noise goes away when turning left. Is it possible for the cv axles to be doing this even while going straight?

[bjd088]

Sometimes when you buy a remanufactured cv axle it will be out of balance. That could cause the problem. And like jeffcoslacker said it could be motor mounts. could also be transmission mounts.

[rmsmith]

It was the axle. The drivers side that i just replaced in june. Luckily advance auto parts replaced it free. Thanks for your help