• Hi Guest!
    You can help ensure that British Car Forum (BCF) continues to provide a great place to engage in the British car hobby! If you find BCF a beneficial community, please consider supporting our efforts with a subscription.
    There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Subscribers don't see this gawd-aweful banner
Tips
Tips

T-Series Clultch Problems ?

Share this page

L

Les

Senior Member
Offline
Hopefully someone can help.

My 72 B is making a rubbing sound ? Imagine if you had a warped brake rotor that was hitting the caliper every half turn, take that sound and that is what my car sounds like when running. It dosn't matter if the clutch is in or out, car in gear or not. The engine runs extremely well and is not under load with the clutch in or out. The B runs and drives great, but this sound is getting worse...

Suggestions ?

Thanks,
Les
 
Les,

Pardon my density,

It's not exactly clear to me when the noise occurs. Why did you mention clutch in the subject.

Does it do "it" only when the engine is running, & car stopped.

With the engine running & car in neutral.

With the car running down the road.

Is the frequency of the noise related to engine speed only or to car speed only or both.
D

<blockquote><font size="1" face="Verdana, Arial">quote:</font><hr>Originally posted by Les:
Hopefully someone can help.

My 72 B is making a rubbing sound ? Imagine if you had a warped brake rotor that was hitting the caliper every half turn, take that sound and that is what my car sounds like when running. It dosn't matter if the clutch is in or out, car in gear or not. The engine runs extremely well and is not under load with the clutch in or out. The B runs and drives great, but this sound is getting worse...

Suggestions ?

Thanks,
Les<hr></blockquote>

[ 07-04-2003: Message edited by: Dave Russell ]</p>
 
Dave,

When sitting still, with the car in neutral, or the clutch in and the car in gear it makes the same sound, with no load on the engine either way.

I'm not sure if the sound is there during driving as the exhaust may hide the sound.

The mentioning of the clutch was just a thought, but since it dosn't make a difference when the clutch is in or out, I'm lost.

Thanks,
Les
 
Les,
Thanks.

I don't know what to think. The noise is not car-chassis-running gear related since it happens when the car is not moving.

It doesn't matter whether the clutch is depressed or not. Or if the car is in gear or not.

The noise is not related to engine speed.

Pretty strange - I haven't a clue, maybe someone else will respond.

The only time that I have experienced a situation like this was when something had gotton into the heating/ventilation blower fan. There are not many things to make noise that aren't related to engine rpm. Do you have an electric engine fan by any chance?
D
 
Yes, that IS a strange one. The '72B didn't come with an electric fan unless there has been one added. I would walk around the car and listen everywhere. Under the hood, under the car, and inside and see if I could tell where it is coming from.
If you hear it louder inside the car, perhaps the heater blower is going and scraping on something that got inside.
Sometimes alternator bearings going bad can sound fairly constant when you rev the motor.
If it sounds like it is coming from under the hood, you can take a stick or long screw driver and place one end of it on different places on the engine and place the other end against you ear lobe closeing your ear with it and hear sounds the you couldn't normaly hear. You can actually tell which part is making the noise because it will really be loud when you get to the defective part.
I would think anything to do with the clutch such as the throw-out bearing would be louder when you push the clutch. Or at least change.
 
Hmmm, interesting problem. I would agree that this does not seem clutch-related, and I too would lean towards the blower motor. Is the blower on? Does the noise speed up if it is turned higher?

There is nothing else that I can think of under the bonnet that would keep turning at the same rpm, regardless of engine speed.

The suggestion of listening using a long piece of wood is a wise one, and well worth the time involved. This may not turn out to be as expensive as you feared.
grin.gif
 
Just be careful not to accidently put the listening stick on any moving parts. It can be a splintering experience.
D
 
<blockquote><font size="1" face="Verdana, Arial">quote:</font><hr>Originally posted by Dave Russell:
Just be careful not to accidently put the listening stick on any moving parts. It can be a splintering experience.
D<hr></blockquote>
LOL, thats funny. Picture a guy with long splinters sticking out one side of his head. I guess it would be profitable if you wanted to mass produce toothpicks. Not the boreing ones that are all one size either. But seriously, that is the best way to isolate a problem down to the offending part.

By the way, the 72B has only one speed on it's blower motor, at least mine does.

grin.gif
thumbsup.gif


[ 07-05-2003: Message edited by: mrbassman ]</p>
 
<blockquote><font size="1" face="Verdana, Arial">quote:</font><hr>Originally posted by Les:
Hopefully someone can help.

Imagine if you had a warped brake rotor that was hitting the caliper every half turn, take that sound and that is what my car sounds like when running.


Thanks,
Les<hr></blockquote>


just curious as to the speed of the noise...slow or quick? from above i take it to mean it isa a metal grinding noise?
 
Thanks for all the replies..

It's alittle hard to truly explain the sound, but I'm leaning toward the water pump.

I'm considering taking the fan belt of and starting the engine, but I want to confirm this is a good idea and that it will actually tell me something. As far as I can tell (not being much of a mechanic), if the fan belt is off the water pump will no rotate therefore the sound should go away if that is the problem.

Of course if its the alternator it would go away also ?

Anyway, can anyone confirm that this course of action should work ?

Thanks
 
Anyway, can anyone confirm that this course of action should work ?

------------------------------
Yes, It will work, give it a try.
 
Yup, could very well be an alternator or water pump bearing. Don't run the engine too long with these items disconnected, though. You may want to make a visual check and see if a pulley isn't rubbing against something-that should be obvious, you'd see a big scrape in line with the pulley.
-William
 
You know, I don't think I have ever had a water pump bearing make noise. I have had only one go bad and that was on a Dodge 383. The fan got play in it and was wobbling but didn't make any noise.
All the rest of the water pumps I have replaced (2 on the MG) were leaking out the little hole in the bottom.
 
Back
Top