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RedTR3
07-04-2013, 05:02 PM
Any ideas on what I am facing here?

Here's the story: Driving the TR3 today, got a sudden terrible metallic rattling noise and vibration...to me it seemed like it was coming from the clutch/transmission area but I am not sure, it could be the engine. The Car runs and was actually driveable but extremely noisy and poor acceleration. Oil pressure seemed OK. The noise gets quieter if the clutch pedal is pushed down all the way. The head was re-done about 300 miles ago and that does not seem to be where the noise is coming from anyway.

I am going to have it towed to the shop on Monday, but I would appreciate any ideas on what this might be.

Thanks,

Tim

Andrew Mace
07-04-2013, 06:44 PM
Timing chain? "Threw" a pushrod and/or broke a rocker arm possibly due to a stuck valve? Just guessing....

Geo Hahn
07-04-2013, 06:57 PM
If you dare to run the engine (and you should consider whether this is prudent) then one of these can help pinpoint the source of the sound:

Mechanic's Stethoscope (https://www.harborfreight.com/mechanics-stethoscope-41966.html)

Pretty hard to make a guess based on a description of the sound -- location is a better clue.

Again -- you do need to think about whether it is wise to start the engine again under these circumstances.

TR3driver
07-04-2013, 08:12 PM
Any chance you have the later starter installed? I had a 3A where the starter drive fell apart on a long trip, and it made a huge racket. Didn't feel like I had much choice (couldn't afford a tow home or to pay a shop to fix it); but by the time I got home, the starter drive had exited through the bellhousing.

CJD
07-04-2013, 09:02 PM
Any chance you have the later starter installed? I had a 3A where the starter drive fell apart on a long trip, and it made a huge racket. Didn't feel like I had much choice (couldn't afford a tow home or to pay a shop to fix it); but by the time I got home, the starter drive had exited through the bellhousing.

You mean...

...like this?

https://i1082.photobucket.com/albums/j377/cjdurant/null-3.jpg

RedTR3
07-04-2013, 11:27 PM
Well, I have the early starter, but I will take a look at it. thanks

TRopic6
07-05-2013, 03:55 AM
If its something rattling around in the bell housing, you might be able to see or get to it by removing the clutch inspection plate.

Jeff

TR3driver
07-05-2013, 05:53 AM
Yup, looked just about like that.

That cover plate doesn't let you see much (including the clutch); the flywheel fills the opening surprisingly well.

TRspitfirefan
07-05-2013, 03:27 PM
The noise gets quieter if the clutch pedal is pushed down all the way.



I wonder about the throwout bearing, or maybe a shattered clutch plate?

RedTR3
07-05-2013, 10:21 PM
I wonder about the throwout bearing, or maybe a shattered clutch plate?

Well, that is what I am kind of "hoping" for, a relatively easy repair...

I will post the results of the diagnosis next week.

RedTR3
07-25-2013, 10:52 PM
Well, the tranny came out and it looks like bad news. Clutch, pressure plate and flywheel all look OK...So that leads to most likely a broken crank...ugh, now the engine has to come out and off to the machine shop. This is going to get pricy. Anyway, thanks to all of you for your help, we'll see how this goes from here.

sp53
07-26-2013, 11:52 AM
So the noise matched the engine RPM before you pulled the Trans?