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Anything and everything Spitfire.
Section : Gearbox
Clutch, gearbox, overdrive, propeller shaft.
Posted By : Andrew Douthwaite, 28-Jun-2003,
09:09am
I've had the rear spring replaced on my Spitfire 1500, and now the car judders and shudders badly when I set off in first gear. Before the work was done
the clutch and everything else seemed fine and smooth.
In the manual it suggests clutch contamination or loose/worn engine mounts. The garage suggest replacing the universal joints then maybe the gearbox mounts
and if this fails to improve it then replace the clutch (they say by taking the engine out? I thought you took the gearbox out.) The garage dont think its
the clutch, any ideas?
Maybe now the axle has changed position its highlighted worn universal joints? Is a quote of £350 including labour a lot for just replacing
the clutch (I think it is!)?
I've updated my message on 1500 head replacement if anyone interested who helped in the past. Basically I got the head off okay following advice and after
removing the studs. I forgot to put the alternator bracket back on the new head and I had to undo a water pump bolt to do this and it sheared off in the
replacement head! Unlucky. It must have been weakened as the threads in the head were a bit rusted up. I've given it back to my cousin to try and drill it
out for me...
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Posted By : Mark Astley, 01-Jul-2003,
11:27am
Hi,
Cannot help on diagnosing the juddering, but if everything was fine before the spring was done look to the back end.
350 for doing the clutch is very steep given that the parts wouldn't be more than 50. Clutch can be changed by either removing the interior and moving
the box back or by moving the engine forward. Shouldn't take more than a couple of hours either way.
I suggest you find a specialist Triumph or classic mechanic in your local area and ask them for a quote/advice before commiting to the one you use at
present. Seek out your AO as he may be able to help finding one.
More technical suggestions will no doubt follow soon.
yours
mark
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Posted By : James Carruthers, 01-Jul-2003,
04:05pm
I'd like to know the answer to this juddering also!
My car had this from when I got it... but if you're careful with your clutch foot then it doesnt do it...
I know the car has just had a new clutch... but I have a feeling it might be something to do with the rear end... my UJs are some what suspect -
they make some noises... but not at the usual times of making the noises... actually when driving normally...
James
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Posted By : Andrew Douthwaite,
29-Jul-2003, 08:14pm
James, I've had the clutch replaced by my local clutch specialist in New Cross (S.E. London) for £180 all in parts, labour and
VAT. They moved the engine forward rather than removing some interior and dropping the gearbox. Took them a couple of hours.
Juddering is completely cured!
However, before having it done I put the back of the car on axle stands and turned everything by hand which all seemed okay, then started her
up and ran it in second ticking over to check for knocks at the back end. The rear diff did jump up and down a little but I think it was cos
the rear wheels were hanging down so much and uj's at an extreme angle.
regards
Andy
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Posted By : James Carruthers,
29-Jul-2003, 09:38pm
Andy,
I know my car has a new clutch - so I reckon that perhaps its a misaligned clutch...
Although having said that the car has stopped juddering a bit since I did up all the drive shaft bolts that were loose! Still not completly
gone - perhaps they need a bit more of a tighten....
James
69 Signal Red Spit
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Posted By : William Davies, 30-Jul-2003,
10:59am
Classic causes of this problem are weak engine or gearbox mountings or a poor quality replacement clutch. I duppose equally that the diff mountings
could cause a problem if they are loose or damaged, but I've not come across such a problem yet.
I very much doubt a problem with the universal joints - are they giving any of the more usual symptoms of being worn?
£350 sounds like an awful lot for a clutch change on a Spitfire, they're not exactly difficult. It's no more than an afternoon's work to
an amateur, parts cost less than £100 - parts could be bought cheaper but won't get rid of judder :-)
Cheers,
Bill.
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Posted By : James Carruthers, 30-Jul-2003,
08:32pm
From finding the loose bolts on the driveshafts - I wouldn't be surprised if its due to loose bolts on the diff etc...
James