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pockers Member
Joined: Mar 02, 2009 Posts: 46
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Posted: Mon Aug 24, 2015 7:41 am Post subject: M38a1 Gearbox Noise /Grind |
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Ok - my clutch went on way to a show in July
Whilst there I purchased a new clutch (pressure plate & disc) , and managed to take engine out, fit new parts then engine back in (all in the middle of a field!!) old disc was well worn
however now when clutch pedal is pushed in & a gear is selected i get a metal on metal squeal/grind,
it gets worse/faster when i press accelerator.
If i select neutral it disappears.
Noise doesn't happen all the time but usually on slow stop start traffic.
It didn't make this noise before I replaced clutch
any one any ideas as to what I've done to it? or what to start looking at?
I've checked the gearbox fluid level & have topped up |
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4x4M38 Member
Joined: May 30, 2014 Posts: 3447 Location: Texas Hill Country
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pockers Member
Joined: Mar 02, 2009 Posts: 46
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Posted: Mon Aug 24, 2015 5:18 pm Post subject: |
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No didn't replace the bearing - wish I had
I seem to rember it was stuck in place- is there a technique in removing it?
Not sure what the other part is
Ps I take it there's no other way to replace the bearing other than engine/motor out? |
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4x4M38 Member
Joined: May 30, 2014 Posts: 3447 Location: Texas Hill Country
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pockers Member
Joined: Mar 02, 2009 Posts: 46
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Posted: Tue Aug 25, 2015 12:53 am Post subject: |
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I'll have a search
It appeared ok but obviously wasn't
But I do remember it wouldn't come off
How did you actually get the bearing off? |
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pockers Member
Joined: Mar 02, 2009 Posts: 46
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Posted: Tue Aug 25, 2015 1:19 am Post subject: |
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Found Bretto , unfortunately he has over 1200 posts listed!
I have however pm'd him |
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Bretto Member
Joined: Nov 24, 2010 Posts: 1390 Location: Orem, UT
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Posted: Tue Aug 25, 2015 6:54 am Post subject: |
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Got your PM, I'll reply here.
It concerns me that the the noise showed up when you were done. Have you looked into the inspection hole while you are hearing this? Is the clutch being released entirely when the clutch pedal is pressed? Seems something is dragging. Does it do it only when in a gear or will it do it in neutral with the clutch released (pedal pressed)? Maybe you just need to adjust the clutch cable.
Regarding the throw out bearing, if it needs to be replaced, the tranny has to come away from engine. Be it pulling the motor, dropping the tranny or pulling the whole power train and separating them on the garage floor. No other way.
There are some parts you always inspect and or replace when you have the engine off the tranny. Clutch plate, pressure plate, fly wheel, pilot bearing, throw out bearing and carrier, clutch fork, return spring.
Brett _________________ Brett
'51 M38
PHOTO DIARY OF MY BUILD |
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4x4M38 Member
Joined: May 30, 2014 Posts: 3447 Location: Texas Hill Country
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pockers Member
Joined: Mar 02, 2009 Posts: 46
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Posted: Tue Aug 25, 2015 7:42 am Post subject: |
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If by thing you mean the throw out bearing then the answer is no as I left the original in place |
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4x4M38 Member
Joined: May 30, 2014 Posts: 3447 Location: Texas Hill Country
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4x4M38 Member
Joined: May 30, 2014 Posts: 3447 Location: Texas Hill Country
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pockers Member
Joined: Mar 02, 2009 Posts: 46
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Posted: Tue Aug 25, 2015 2:24 pm Post subject: |
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Thanks guys
Just one more thing
if it needs it - how do i get the throw out bearing off?? as im sure mine seemed stuck fast? - does it need a puller? or heat etc...
also is there a trick to putting on the new one?
ie heat etc
thanks |
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wesk Site Administrator
Joined: Apr 04, 2005 Posts: 16258 Location: Wisconsin
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Bretto Member
Joined: Nov 24, 2010 Posts: 1390 Location: Orem, UT
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Posted: Wed Aug 26, 2015 5:16 am Post subject: |
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To add to Wes post, when it says you can install the clutch disc backward, it's to say it physically can be put in either way. but there is only one way it should be installed. There is a long and short side to the splined center tube section. The long side goes to the aft end.
The throw out bearing it pressed on and off to the carrier. Sometimes packing some grease into these bearings can hush them up. _________________ Brett
'51 M38
PHOTO DIARY OF MY BUILD |
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pockers Member
Joined: Mar 02, 2009 Posts: 46
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Posted: Fri Sep 18, 2015 12:14 am Post subject: |
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Hi
ive taken the floor plates out & taken off the inspection plate to the bell housing
The noise is definitely coming from the disc
it looks like its either vibrating or is off centre
Unfortunately i replaced it in a field at a show and it was all a bit rushed
Engine coming out again soon in better conditions
Stupid question time
if it is in backwards have i ruined it? & will i need a new one
Whats the correct torque settings for the disc?
How do i replace the throwout bearing ie how to i get the old one off & the new one on?
thanks in advance |
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