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Triumph Torque    Cars    Herald/Vitesse  ›  Strange driveshaft? noise?
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KiwiTom
August 14, 2017, 6:03am Report to Moderator

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Hi there. I am a new guy to this site but owned hearalds for many years in my youth. It is a long story I am trying to get a 1967 1200 herald in a state where someone might want to but it. It has been shed stored for about 10 years that meant i had to replace most of the slave cylinders but at last I have got everything sorted and it is running beautifully except....there is a distressing loud vibration noise that sounds like the prop shaft (or perhaps the exhaust) that only occurs when there is no load on the engine. Under acceleration, nice and quiet. Slowing down, nice and quiet. That sweet spot when you are at the speed you want to cruise at with no loading on any of the shafts...horrible loud noise that sounds like something is in the process of falling apart.

I was just wondering if anyone had experienced this before and if you had any ideas as to where to start.
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Pete Lewis
August 15, 2017, 7:21am Report to Moderator

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Most shafts grumble rumble vibrate or knock

a loud  noise in the body seems more like exhaust or elsewhere is fouling somewhere when off load ,  also check the engine mounts for seperation.


1964 1600 Vitesse 6 Cactus and Black , now  sold
now have T2000   Mk2 saloon in French Blue/grey trim  been  restored without running since 1997
now has power steering ,poly bushed and Alfa 156 seats
location  Luton
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KiwiTom
August 15, 2017, 9:27am Report to Moderator

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Quoted from Pete Lewis
Most shafts grumble rumble vibrate or knock

a loud  noise in the body seems more like exhaust or elsewhere is fouling somewhere when off load ,  also check the engine mounts for seperation.


Thanks for that Pete I will check the engine mounts. My next plan is to put it on blocks and see if I can get it to make the noise off the road so I can better pinpoint it.

I was given this car by a friend who died of cancer so that I could sell it to assist my daughter who now has stage 4 breast cancer with her treatment, so it will be great to sort this issue out.
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Nick Jones
August 15, 2017, 8:53pm Report to Moderator

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Sounds like propshaft to me.  If it's one of those horrible strap-drive things then it's pretty much a dead certainly but a slightly slack UJ could do it, as could a worn sliding spline although, I don't think you'll find one of those on a Herald.

Engine mounts are worth checking carefully as already suggested as are the gearbox mounts.

Even cars that run sweetly on the road can make horrible noises on blocks.  I'd suggest removing the rear wheels and brake drums.  Also make sure the driveshafts are not rubbing on the chassis as they sometimes do on full droop.

Good luck!

Nick

PS. is the car in UK or NZ?  Have a son who thinks he wants a Herald..... (in UK)


Nick Jones
Somerset UK

Vitesse Mk 1.5 Convertible EFI, Survivor of RBRR 2008, HCR & 10CR 2009, HCR 2010, 10CR2011, HCR 2012, 10CR2013, 10CR2015, HCR 2016 & HCR 2017.
GT6 Mk3 Roto - project in progress
Spitfire MKIV son's project now on the road as a daily driver
2.5 PI Saloon now EFI (PIe?), Engine rebuilt and running sweet.  Diff howling...... Survivor of HCR 2013 & 2014 Gone to live in Swansea

http://www.tengaston.plus.com
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Casper
August 16, 2017, 7:42am Report to Moderator


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Quoted Text
sliding spline although, I don't think you'll find one of those on a Herald.


12/50s had them, I believe

C.


Herald Anorak
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Bitumen Boy
August 16, 2017, 1:55pm Report to Moderator
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Quoted from Casper


12/50s had them, I believe

C.


My 1200 had one when it first came to live at my expense - probably a PO's scrapyard bargain. It was knackered and I was lucky to get hold of a solid type replacement. Things get swapped around on old cars, just because something wouldn't be fitted by the factory doesn't mean you won't see it now.
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Mark Hammond
August 16, 2017, 6:03pm Report to Moderator

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Late 13/60's had 'em too..........

M.


Herald 1200 Saloon, owned (in the family) from new, Royal Blue/Black trim
[color=purple]MX-5 Z-Sport (Tweaked to 200bhp)2007,
Suzuki Vitara S Auto, Cosmic Black, 2017.
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Nick Jones
August 16, 2017, 7:32pm Report to Moderator

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Whatever.  My 1200 had a solid one when I got it (with fore/aft stay bar on the gearbox) and a succession of sliding spline ones thereafter to suit the transmission of the day.  Definitely a potential source of off-load rumble if the splines are worn and small chassis Triumphs are very fussy about propshafts in my experience.

Nick


Nick Jones
Somerset UK

Vitesse Mk 1.5 Convertible EFI, Survivor of RBRR 2008, HCR & 10CR 2009, HCR 2010, 10CR2011, HCR 2012, 10CR2013, 10CR2015, HCR 2016 & HCR 2017.
GT6 Mk3 Roto - project in progress
Spitfire MKIV son's project now on the road as a daily driver
2.5 PI Saloon now EFI (PIe?), Engine rebuilt and running sweet.  Diff howling...... Survivor of HCR 2013 & 2014 Gone to live in Swansea

http://www.tengaston.plus.com
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heraldcoupe
August 19, 2017, 8:48am Report to Moderator

Mid-life crisis pending
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Quoted from Nick Jones
a worn sliding spline although, I don't think you'll find one of those on a Herald.


They were fitted at the factory pretty much throughout Herald production, but only to occasional cars. They were supposedly substituted where vibrations couldn't be eliminated with the regular solid (or later, strap) propshaft.
I've had about 2-3 cars with them out of roughly 100 Heralds I've owned,

Cheers,
Bill.


Enthusiast and collector of early Heralds.

"The trouble with quotes over the Internet is that you never know if they are genuine." -- Abraham Lincoln
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