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Chasing an unidentified noise,. 1978 Spitfire.

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Falkon Avatar
Falkon Al Martin
Appleton, WI, USA   USA
What Dan said.

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Doug in Vegas Avatar
Doug in Vegas Douglas D
Las Vegas, NV, USA   USA
I'm wondering if it's the flapper in the air cleaner rattling.

Tonyfixit Avatar
Tonyfixit Tony M
Duncan, BC, Canada   CAN
My bet is on the axel UJ.

I have had CV joints go on the propshaft, but that is more vibration than noise.

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chipkey101 Avatar
chipkey101 Billy Knight
Parrish, FL, USA   USA
Well I have a video of the noise but can't figure how to post it. Its in my iPhotos and I must change it to a JPEG file I think.
The video is about 33 seconds long.

Any suggestions!!



Edited 2 time(s). Last edit at 2018-02-07 04:27 PM by chipkey101.

Doug in Vegas Avatar
Doug in Vegas Douglas D
Las Vegas, NV, USA   USA
Create a free account on YouTube and upload it there.

chipkey101 Avatar
chipkey101 Billy Knight
Parrish, FL, USA   USA
Hello, I fastened a camera under the car and drove it up the street. Not far, 10mph or less.
Just to repeat myself:

Inspected Differential before install.
New wheel bearings.
New universals.
New rear spring.

Whats causing this knock?

Video on Youtube:


philipheys Avatar
philipheys Phil Heys
Accrington, Lancashire, UK   GBR
UJ joints, cheap to change not that difficult to do.

Good luck

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chipkey101 Avatar
chipkey101 Billy Knight
Parrish, FL, USA   USA
Update:

This noise was caused by the failure of the passenger side axle universal joint.


Yellowhawk Valley Avatar
walla walla, WA, USA   USA
1969 Triumph Spitfire "Walla Walla"
1969 Triumph Spitfire "Portland"
1972 Triumph Spitfire MkIV "Spokane"
1975 Triumph Spitfire 1500 "Dayton"    & more
Glad you found it. Hope you changed all of them.
Dan

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Tonyfixit Avatar
Tonyfixit Tony M
Duncan, BC, Canada   CAN
What brand UJ was it? Don't tell me it did not have one ;-)

philipheys Avatar
philipheys Phil Heys
Accrington, Lancashire, UK   GBR
Great news!!

I swore that there was nothing wrong with my UJ joints until I changed them.

Spittypuss Avatar
Spittypuss Tom S
Lancashire, England, UK   GBR
1978 Triumph 1500 "Spittypuss"
Couple of years ago prior to going on holiday in the English Yorkshire Dales, for peace of mind, I decided on a last minute basis (day before departure) to change the offside clacking U joint on rear drive shaft. Got stuck in and changed the UJ in a couple of hours.

Took the spitfire on a test run and what a difference, lovely and quiet, no clacking, all going smooth. On approach to a narrow bridge, I gave way to oncoming traffic, then proceeded over the bridge.

Suddenly, and in the middle of the bridge, a big bang and the car stopped dead. Got out to see the offside wheel leaning in. Not looking good!
The UJ had snapped! The drive shaft had come adrift from the diff and rested solid on the top of the handbrake cable, which had obviously stopped the car dead.

Big do’s and little do’s, managed to get the car off the bridge with some help from waiting drivers lifting the rear of the car to release the handbrake. Phoned the wife for assistance, and fortunately had spare parts in my garage. Changed the whole drive shaft, backplate, brakes and UJ at the roadside, bled the brakes and got the car home.

Moral of the tale. Do not use cheap UJ’s. I got this one off ebay and looking at the fractured broken part, it was obvious the metal itself was cheap and nasty.

Dread to think what would have happened if the same event had taken place with foot to the floor charging over the Yorkshire Moors?



Triumph Spitfire 1500 year 1978, colour white

Doug in Vegas Avatar
Doug in Vegas Douglas D
Las Vegas, NV, USA   USA
Hardy Spicer on mine.

Put them on in 96 and they're still going strong.

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