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Buicks being noisy


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Hi folks, My 47 has been running great last few months but  first gear is gettin very noisy and the clutch pedal is biting real high now,

I have got the chance of another gearbox which we took the lid off, everything is very clean ,oil looks fresh,

only thing is the snap ring on the first motion shaft was broken, are these special or are they freely available,

 I can get a new clutch/ reline easy enough. Are these trans prone to wear/noise, do I need to be aware of any problems.

 

many thanks Paul

 

snap ring.jpg

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Look up Northwestern Transmission Parts.  They should have what you need.  Even a completed rebuild kit(less gears)  Get the numbers off the tail and body of the manual transmission.   Yes, these transmission will wear but you should get good service out of them.   As far as noise, 1st gear is noisy.  2nd even less.  3rd gear should be quiet.  This is noted in the repair manuals. 

 

http://nwtparts.com

Edited by avgwarhawk (see edit history)
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thanks for the great info, 1st gear currently sounds like an old tractor reversing down a back lane,

and 2nd and 3rd are Ok, Where can I read about these Trans,

what type of trans are these called or designated,would a circlip of similar size be just as good

thanks Paul

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http://www.pontiacsafari.com/L1Garage/ManualTransmissions/index.htm

 

The link will take you to the best site I have found for these transmissions. You will find Buick listed. I'm not positive but your 47 should be the same as later years.   These manuals are used across many GM products.  Just different tail end configuration and I guess some different gear ratios.  The C clip similar size hardened steel should work just fine. 

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  • 2 weeks later...

Hi All,

                quick update, Got the gearbox out today, just loosened  off back axle and torque tube and pulled the axle back offa the rear bumper.

found a few things rear mount had turned to mush, main gear linkage loose, reverse linkage worn, clutch release was wound on to tight?! , ( not by me)

first motion shaft bearing worn, selector forks loose.  clutch was like polished marble and rock hard ,signs of slippage, I managed to match a clutch OK,

compared my box to replacement box   ( out of a 47 convertible  ) found a couple differences,  rear mount  differs, no provision for a front mount.

do You need a front mount at all?, reckon I could make my own mounts if necessary 

                                                                                                                                                          thanks Paul

 

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  • 2 weeks later...

Ok , had a job removing the flywheel on my car ,   the donor setup had the flywheel bolted on, six bolts and out of the bellhousing it drops ,

on mine it was six pressed in bolts with six nuts and lock washers, I removed the nuts but there was zero clearance to drop the flywheel,

had to position each bolt at about the 10 o'clock position and tap it out, got four out and two pressed back before the fly wheel could come out.

 my flywheel is much heavier and differs from the donor,   any way got the flywheel back in place  gotta try and get the bolts back in tomorrow night then hopefully

put the new clutch and better gearbox in, managed to find some suitable mounts , 

 

                                 paul

 

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This is a bit late BUT  Bobs Automobilia has a LOT of the special parts needed for that transmission and clutch.  805-434-2963.   They make the parts for the throw-out bearing sleeve, slide and the tapered bellview washer.   They also have the linkage out the outside of the trans to help put it into neutral.    Also a lot of good used tranny parts.

     Make sure the clutch release fork has both of the retaining clips on it in good shape.   Bobs has those too!

 

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3 hours ago, carterbar said:

Thanks for the info. Rear mount came today . Slight mod to the bracketry and I,m away.

Well until I noticed the fuel tank leaking DOH!!

 

 

Been a few times I repaired one item only to find another item needing attention.  Eventually any issue is ironed out and it becomes simply polishing and driving!   

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  • 2 weeks later...

Hi all,   fuel leak turned out to be where the stack pipe goes through the sender unit mount, 

re-soldered with a low melt solder stick  tested the unit while it was out seems to be working albeit notchy

so it looks like my gauge is faulty, tried earthing it but no movement, clutch has another problem

seems I have run out of adjustment on the pushrod ( could make a new one ), I now think their has been a mix and match of parts 

over the years what with different mounts and fittings etc, the plot thickens, if anybody has a spare fuel gauge to try that would be handy,

anyway Merry christmas and Happy new year to all   have a guddin ya all.

Paul

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Hi I used the pressure plate from the donor car with a new drive plate, the push rod is about 1 " short 

of taking the free play, clutch assembly /bearing all looks OK and is identical to what came out

 

                                     

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On 12/24/2019 at 9:16 AM, carterbar said:

Hi I used the pressure plate from the donor car with a new drive plate, the push rod is about 1 " short 

of taking the free play, clutch assembly /bearing all looks OK and is identical to what came out

 

                                     

 

 1 inch is quite a bit. The used pressure plate may be the issue.   Brand new pressure plate and clutch discs are available for your Buick.  

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  • 2 weeks later...

yes that,s  the noise but even louder, and I,m sure a bearing has collapsed, just got it started today ,

having to make up for all the wear in the clutch and gear linkages , BTW has anybody got the wiring diagram

for the starter motor  I just need to check the  two small connections are correct,  thanks all 

and all the best for the new year

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well managed to take up a lot of the wear in the clutch and gear linkages ( god knows how it ran and changed gear so easy the last coupla years )

the gears are selecting great now, clutch action is good , getting it offa the ramp next week and have a run about,

anybody got a starter wiring diagram , can't seem to find one online,      thanks all

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Buicks being quite quiet !!,     had  the car off the ramp and round the works yard 

and what a result ,   a hell of a difference     engine and box  very quiet, my work mate 

didn't even know I drove past him,  a few minor adjustments and then on to the next job,

heater valve is leaking at the bulkhead, might just bin it and put a underdash heater in .

having a dispute with a mate who reckons the starter is wired up wrong because I am 

getting a voltage drop to the coil when starting,( I think the battery's on the way out)

bottom left red is from ignition switch 

brown is to earth, main red to battery, bottom right red from alternator.

car is 12volt with alternator , pertronix ignitor and coil, no ballast resistor in circuit

big thanks to all the Buiticians  for the help and input

starter wiring pic.jpg

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  • 1 month later...

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