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Servicing
#1
  This topic is about my 1969 MG MGC GT
Tony1969 Tony Gammage
Mandurah, WA, Australia   AUS
Gents
I was having a greasing moment the other day and found my prop shaft has no means of greasing the sliding joint without removing and disassembling .
I checked the WS manual and in the diagram it only gives two grease points, each UJ.but further in there is a note advising to check for wear in splines.
Are all of the shafts like this or do some have grease nipples fitted to able this to be done without disassembling?
I thought of drilling and fitting one but expect it has been hardened in that area for the spline .If it’s the hard way how many miles are you doing it at ?
I pulled mine apart by removing the diff end bolts and sliding it apart insitue the front female stays on gearbox flange but the joints need to line up when refitting ,the manual shows arrows but l couldn’t find any on my shaft but l did mark it before parting.
It’s a thing which gets overlooked if there no means of doing it easy and it’s an expensive job when the sliding joint needs replacing .
What oil are you using to top up the rear Armstrong shocks if needed l get blank looks in the spares shops when asking there these days.

Tony

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kirks-auto Platinum Member Robert Kirk
Davenport, IA, USA   USA
Shocks take 20 or 30 weight motorcycle fork oil.
I'm not totally clear about your other issue other than to say the front of the drive shaft should have a boot to prevent road grime etc. PN 27H8098. I personally don't know how the very heavy duty splines could "wear" as any grease that allows free to and fro sliding movement is the only lube benefit one could reasonably expect. Unlike splined wheels hubs, which are much smaller engagements susceptible to the outside forces of rapid acceleration and hard breaking which indeed will damage splines.



Regards,
Robert Kirk

kirkbrit@yahoo.com
E-mail PLEASE for quote/questions/orders

Business phone 563 323 1017

http://kirks-auto.com/
Moss distributor/UK importer
Beat or match most retail/delivered quote



Edited 1 time(s). Last edit at 2019-02-27 10:47 AM by kirks-auto.


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JMA Avatar
JMA Silver Member John Anderson
Donvale, Victoria, Australia   AUS
I can't help you with the prop shaft sliding joint but the two 50 year old prop shafts I have still move freely.

For your rear dampers Penrite make 500ml bottles of the correct oil which should cost you around $10. Get onto Penrite's website and they list suppliers local to you, if you have no luck PM me with your phone number and I'll organise you a bottle.



Edited 1 time(s). Last edit at 2019-02-27 03:24 PM by JMA.


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PFT-000 Bruce Ibbotson
Brisbane, Australia   AUS
1968 MG MGC GT "The Truck"
1968 MG MGC GT "The Truck"
Tony,

When I fitted the Hoyle IRS to my GT I took the factory propshaft to a specialist to see if it could be shortened [770 mm required from memory] the guy checked the shaft and said this one cannot be used as there is so much wear in the splines of the sliding joint that I will not be able to balance it.

It really had a lot of lateral slop in it, the new shaft has a grease nipple so the splines can be greased.

My car has had a well used long life so this did not surprise me. Before 'Road Tax' devices (speed cameras) and low speed limits were strictly enforced I enjoyed fully driving my car. No longer possible if one needs to keep a licence in "Nanny" Australia.

It did explain why there had been vibration occasionally in the propshaft area. This all went away with the new propshaft fitted.

My car had covered 120,000 Odometer miles at the time. A new propshaft may be a good idea. These cars were never expected to still be driven for 50 years. And never to be driven quickly on our rough uneven roads. UK roads are like Billard tables compared to our country roads.

Bruce.

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m.s.macrae Murray MacRae
Wellington, Wellington, New Zealand   NZL
1968 MG MGC
1994 Subaru Impreza WRX
2000 Subaru Outback "A Bit Of A Dog"
2008 Mazda 6
I would grease it put it back and only worry if you get any vibration.
Then replace before it wears the tail shaft.
Just a thought. All depends on the bank winking smiley
regards Murray

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Tony1969 Tony Gammage
Mandurah, WA, Australia   AUS
John
Thanks for information on oil l will chase that up.
I don’t have any problem with my prop shaft all slides fine but l have seen some horror joints over the years from the lack of grease on other machines.

Tony

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Tony1969 Tony Gammage
Mandurah, WA, Australia   AUS
Robert
Thanks
From your information mine is missing the rubber boot.
The majority of my experience with these sliding joints has been in hot climates and the grease dries out quite quickly if not supplied with fresh on a regular basis spline wear is very real even to the point of the drive failing.
I don’t have any issues with the condition of my shaft but was wondering if it was standard on the C for this means of greasing to be missing ?

Tony

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Tony1969 Tony Gammage
Mandurah, WA, Australia   AUS
Bruce
Yes totally agree our conditions and roads can be very different to other parts of the world and if you want to go somewhere you have to use whatever is in front of you ,alternative routes can be few and far between when one gets out side of the city areas especially in the West not to many City’s.
My car has a similar mileage 120000 but l suspect it may not be the original shaft .

Tony

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kirks-auto Platinum Member Robert Kirk
Davenport, IA, USA   USA
I have no knowledge of what you folks suffer in the Southern Hemisphere outside of watching Mad Max and some knowledge of those intimidating road trains. I will say U joint frequent lube/inspection is important as wear will quickly put the entire shaft out of kilter. Also the coupling is matched so while there are 4 points one should mark the mating pair to insure all returns to the factory setting. Be it Penrite or another brand the key is an anti foaming formula for hydraulic dampening such as used in motorcycle forks. Penrite isn't easily available here but cycle shops abound.



Regards,
Robert Kirk

kirkbrit@yahoo.com
E-mail PLEASE for quote/questions/orders

Business phone 563 323 1017

http://kirks-auto.com/
Moss distributor/UK importer
Beat or match most retail/delivered quote


Member Services:
Parts for your classic British and Italian car. 30 years in business.
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Snowberry C Chris A
Havant, Hampshire, UK   GBR
1969 MG MGC
I'm with Bruce on the benefits of replacing the propshaft (and also his comments on the cynically revenue raising cowardly police speed entrapment).

Replaced the prop on my factory V8 a few years ago and although the movement at the splines was slight, a distinct vibration which could be felt, and seen in a slight blurring of image in the rear view mirror, vanished when I replaced the prop.

I bought a quality one from Clive Wheatley, a V8 specialist in the UK. Not the cheapest but I don't think all new propshafts are created equal, and I shall be seeking another quality replacement again (probably same source) as part of my current MGC resto.

Regards
Chris

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PFT-000 Bruce Ibbotson
Brisbane, Australia   AUS
1968 MG MGC GT "The Truck"
1968 MG MGC GT "The Truck"
Chris,

Cheap technology has at last established a government department section that can 'run at a profit' for their department. Here the Transport Dept. uses police seconded on overtime to raise revenue.

They hide in the bush using small black cameras on black tripods with the policeman sitting behind so as to be out of sight and place these cash generators right at the speed sign (typically 80 kph back to 60 kph) I got pinged last July and the photo shows the 60 sign on the right in FRONT of my car with the Lidar device showing my rear # plate.

I have not experienced this low act of pre booking motorists before. I contacted the Police and they said there was a previous 60 sign, it must have been hidden by bushes (or missing) as I never saw it and I had been warned to be especially careful around Warwick as the Police were all out to raise revenue.

On the bottom of the form I noticed I have a Customer number, I would have thought it should have been an Infringement number. All Australian States are now flat out raising revenue, cameras at the top of hills as well as the bottom, anywhere where they can get a Dollar.

Bruce.


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JMA Avatar
JMA Silver Member John Anderson
Donvale, Victoria, Australia   AUS
In Victoria the speed cameras (they have officially renamed them "safety cameras" as if speeding by less than casual walking pace is the only form of road safety) are run by a division of the Macquarie Group, that is the bank.

They have changed laws that now allow the mobile speed cameras to be placed at the bottom of hills, no matter how large or small, and allowed them to hide in any way the operator sees fit. If any member of the public approaches the cars they can be charged with any offence deemed appropriate by the Police.

If it were anyone outside officialdom they'd be charged with "Theft by Deception"

In any other country there would be serious questions asked, except here as we're such a "trusting" lot. Then again we're the only Western Democracy that doesn't have a Bill of Rights for their citizens and the Government isn't in a hurry to grant it either.



Edited 1 time(s). Last edit at 2019-02-28 06:25 PM by JMA.

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Ken Plumstead Avatar
Smithers, BC, Canada   CAN
1965 MG MGB
1968 MG MGC GT
One time I was able to bust a police speed trap without any nasty repercussions for myself.

I was on an army exercise on our east coast, cruising along at about five hundred feet in my Huey when I notice an RCMP car hiding behind a clump of trees on the main highway. Ah ha, says I, a speed trap. My turn now. I turned around and flew back up the highway, dropped down to tactical level (5 feet) and cranked up the speed to 120 knots and blasted around the corner and flew right over the cop car at five feet. I'll bet the cop thought it was the end of the world when we went over his roof.

I wasn't too concerned about getting caught. There were a bunch of us in the air at the time doing various support jobs for the grunts on the ground. That and the black tail numbers were about six inched tall on dark grey and green camouflage. The RCMP did call the squadron ops office to complain but without a tail number there was no way to determine who the culprit was. At the next squadron briefing the CO did say that there would be no more harassing the local constabulary.

Ken



MG: Transforming gasoline into Fun!!!

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PETE W Sussex Peter H
Ansty, West Sussex, UK   GBR
You could have machine gunned himgrinning smiley

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Ken Plumstead Avatar
Smithers, BC, Canada   CAN
1965 MG MGB
1968 MG MGC GT
Alas, this is Canada. No door guns.

Ken



MG: Transforming gasoline into Fun!!!

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