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Lots Of Simple Questions At Once


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#151 Tonylamb

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Posted 07 May 2019 - 09:13 PM

It's a brand new crank that was fitted by someone I trust so I doubt that. But it's something I will check when I have the motor out.

#152 imack

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Posted 08 May 2019 - 04:55 AM

Is the flywheel loose on the crank? Let's hope not.
Noise may go in this case with clutch depressed.

#153 Tonylamb

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Posted 18 May 2019 - 04:00 PM

When you lift the engine can you use the two head bolts either end. Does that disturb the head seal? By undoing them and then doing them up again?

#154 Tonylamb

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Posted 19 May 2019 - 08:39 AM

So I have the engine out to investigate the clutch rattle. The release bearing which I think is new does have a tiny bit of play. But it does t make sense that it's the source of the rattle?

https://youtu.be/3w5vR3EIXNQ

#155 nicklouse

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Posted 19 May 2019 - 11:00 AM

That’s nothing. The issue is elsewhere.

#156 Tonylamb

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Posted 19 May 2019 - 12:51 PM

I agree, it chatters like a magpie at idle and if you put some revs on it. But if you dip the clutch the chatter goes away. i've been reading articles in the forum to try and find out what it might be. Answers to this thread have helped. I haven't taken the clutch or flywheel off yet as I've got to get a new puller, its ordered. I have straight cut gears in the box but helical drop gears. My engine builder told me not to get SC drop gears as they are fearfully noisy. This is set up is noisy enough. Nothing loose in the clutch housing, shame as i was hoping to find something simple early on. So its either the drop gears or something in the main box. Do the drop gears turn when in neutral? I'll take the clutch and fly wheel off. Although I'm thinking about sending the engine back to the builder to get him to take a look.

#157 imack

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Posted 19 May 2019 - 01:24 PM

In neutral and foot off the clutch the drop gears are turning. Clutch pedal pressed and drop gears are static.

#158 KTS

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Posted 19 May 2019 - 01:36 PM

with clutch engaged (..and engine running..); primary, drop gears, first motion and layshaft will be turning all the time

 

with clutch disengaged; crank tail spins within the bushes of the (..in theory..) static primary gear and therefore no drive transmitted through the drop gears


Edited by KTS, 19 May 2019 - 01:38 PM.


#159 Tonylamb

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Posted 19 May 2019 - 03:56 PM

So ina search for a rattle that goes away when the clutch is depressed. I'm looking for something g that might rattle when its engaged. Primary, drop gears, layshaft and first motion could all be the cause.




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