33 Harsh noise
 

My 33 has always had a very aggressive noise during heavy acceleration not unlike an exhaust rubbing on the chassis or body. I even installed new engine mounts as well as G/Box mount done by Lawrie. It just seems like the motor is bolted direct to the chassis just like my old race car was.
My question is The engine & gearbox are rubber mounted to the chassis but, the anti chatter bars are not therefore a direct contact to the chassis.
Am I missing something or could noise be transferred through the bars.
Kpar

Re: 33 Harsh noise
 

If that engine is properly balanced like I'm sure it is, and there is no "miss" in any of the cylinders, I can't imagine what vibration there would be to transmit through the anti-chatter rods. Maybe just turn the radio up a little louder? DD

Re: 33 Harsh noise
 

Check all the exhaust mounting brackets and rubber mounts between the brackets and the chassis. All should be rubber mounted with no bracket metal touching the chassis. Regards, Kevin.

Re: 33 Harsh noise
 

How about track back to the last thing you fine tuned or worked on the car.
This can often be the case if the problem has only just surfaced. I find this is a good way to start off the fault finding process.
Phil NZ

Re: 33 Harsh noise
 

Check what wrench is missing from your tool box. You might find it before the noise disappears. :D:

Sorry, peanut gallery will be silent.

Re: 33 Harsh noise
 

My wife has come up with a suggestion. "remove my hearing aids"
I'm also going to check out an exhaust shop, the muffler on the car looks like it should be on a Cat D9.
Kpar

Re: 33 Harsh noise
 

Just checked the anti-chatter bars on my 38 and they go directly to the chassis, no rubber. It is a little noisy during heavy acceration but I never thought much of it. On the other hand I don't have anything to compare it to and don't know any different. You would think they would be rubber mounted.

Is it only under heavy acceleration or does it happen any other time? Hope you get it figured and is a simple fix.

All the best,
Will

Re: 33 Harsh noise
 

The whole idea behind the rods is to SOLIDLY MOUNT to the chassis so as NOT TO ALLOW ANY fore and aft movement of the engine/trans assembly which is mounted on rubber (flexible) insulators. DD

Re: 33 Harsh noise
 

Will it's always had this noise since I purchased it. Over a few years it's had a rebuild of motor, gearbox, rear axel,& several other mechanical repairs & noise always stayed the same. If I punch it up to 55-60mph the noise (grumble) stays there until I back off a bit & cruise at 55 with no load.
I've tried to compare it to Lawrie's which is a lot quieter even with his larger engine.
Maybe I just remove my Hearing Aids
Kpar

Re: 33 Harsh noise
 

Its not detonating is it ..? and you dont have a center bearing?

Re: 33 Harsh noise
 

That symptom of the noise diminishing when you back-off a bit sounds like something that happens when a pinion bearing is fubar, and THAT ain't cool! DD

Re: 33 Harsh noise
 

Have you checked your ujoint lately?

Re: 33 Harsh noise
 

Fan noise...............
Paul in CT

Re: 33 Harsh noise
 

Thanks for the input everyone. I'll just roll with it and see what happens
Kpar

Re: 33 Harsh noise
 

Keith ,has the dist got the n11a advance,I cant remember, have a look and see if its ngot the small points cam and two peice points.
Lawrie

Re: 33 Harsh noise
 

I would wager the center bearing on the drive shaft. Just a guess but we all are guessing without hearing it in person. I'm not saying that Kpars' description isn't accurate.

Re: 33 Harsh noise
 

Thanks V8COOPMAN, good to know.

Re: 33 Harsh noise
 

I think Lawrie could be onto something with the 11A advance....try a 68 advance and see if it improves. A quick test without removing the distributor would be to retard the distributor from where it's currently set, [take note of where timing is set so you can return it to same place], and take car for a spin. See if the harsh noise improves...
No centre bearing in torquetube.

Re: 33 Harsh noise
 

Brian , I will make up ma 68 unit for Keith to try ,
Lawrie

Re: 33 Harsh noise
 

Way to go Lawrie, let the process of elimination begin....

Re: 33 Harsh noise
 

Thanks Lawrie, hopefully soon we can get together when all this virus crisis is over. I tried something today & backed off my engine mountings. Yet to be tested. Maybe I need your replacement engine you are building for your 33 ?.
Kpar

Re: 33 Harsh noise
 

Keith that’s a good idea. Lawries new motor needs to be run in!! ����

Re: 33 Harsh noise
 

Danny, when are you next down to Brisbane, I have some stuff that some one in the V8 club might be able to use, later generators ,and manifolds, I can't throw them out and I won't use them,
Lawrie

Re: 33 Harsh noise
 

Lawrie, when you built the 2 dist for me they both were the separate points type
Kpar

Re: 33 Harsh noise
 

OK that means both were 11a. that was what was in there from the start.
I will knock one up with the 68 and also you can try a 40b one from the spare 34
Lawrie

Re: 33 Harsh noise
 

Good news Brian, Lawrie made up a 40B Dist for me to try. Installed it & went for a run, Lawrie as passenger well that "Harsh Noise" is gone and also a very pleasing outcome is the engine is performance. Very responsive and a lot quieter. Lawrie is the Ford Man.
Just got to source new points ?.
Kpar

Re: 33 Harsh noise
 

Happy to hear you got it figured and all worked out :)

Re: 33 Harsh noise
 

Good one, those early motors don't like 11A advance.