Vibration

stevie_a · Postby **stevie_a** » 04 Aug 2011 13:22

I have now got a new job and no company van ... [:(]

so I have been using the Triumph on the good days and the BMW on the wet horrible days

the other year I put EBC brake disks and pads on the car,(Capri 2.

they now seam to be warped.. [V]

I reckon a very maximum of 4,000 miles, they still look like new

so to get this confirmed that it is definitely them as most of the vibration is from the steering wheel although definitely some on the peddle

I put it in for it's M.O.T one month early and they were going to look at the problem

Firstly the car flew threw the M.O.T no adversaries

so he looked about and two things came to light

1. slight wear on steering column bush

2. there were slight (but not bad ) warp on the disks

so putting it back in to them to get all the steering shaft bushes done parts were only Â£30ish in total

and found a machine shop that will skim the both disks for Â£40

I am annoyed that the disks have warped so fast as it is not as if i use it on track day's or anything

I have heard that skimming the disks will only help for a short time as the metal is then thinner and will just warp again

is this right or will i just get them skimmed ????

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If it's not broke don't fix it.

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nick · Postby **nick** » 04 Aug 2011 15:48

Last time I skimmed disks was on my Toyota 4runner. And as you suggest they lasted a very short time and the vibration returned. I changed them out with a heavier disk and have had no problems since. The skimming was a waste of money.

nick
'79 TR7

FI Spyder · Postby **FI Spyder** » 04 Aug 2011 17:23

Discs tend to be as thin as the companies can get away with in an effort to reduce weight. Most discs are as cheap to buy (almost) as it is to skim them so basically not done any more as skimming is a short term solution. The new dics for my Toyota were $17 each. Checked price for Dodge Caravan (vented) I was working on and they weren't much more. Exotic after market ones are priced at what ever the market will bare.

As many things can affect steering wheel vibration, do a search to find possible problems and trace each down starting with least expensive to most expensive until the problem goes away.

TR7 Spider - 1978 Spitfire - 1976 Spitfire - 1988 Tercel 4X4 - Kali on Integra - 1991 Integra - Yellow TCT

stevie_a · Postby **stevie_a** » 04 Aug 2011 17:31

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by FI Spyder

The new dics for my Toyota were $17 each. Checked price for Dodge Caravan (vented) I was working on and they weren't much more. Exotic after market ones are priced at what ever the market will <hr height="1" noshade id="quote"></blockquote id="quote">

My disks EBC Ford Capri 2.8i Â£150 a set

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If it's not broke don't fix it.

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Beans · Postby **Beans** » 04 Aug 2011 19:33

Got the same problem when I returned from the Alps.
Needless to say the brakes got quite a beating there.

On the way back home (on the German Autobahn) I had very severe brake judder.
But after a few rain showers it had gone completely.
Discs are 12 years old and have covered well over 72.000 km by now ...

<center>

1980 TR7 DHC (my first car, now restored and back on the road)
1981 TR7 FHC Sprint (better known as 't Kreng)
[url="http://www.tr7beans.blogspot.com/"]My Weblog[/url]</center>

john 215 · Postby **john 215** » 04 Aug 2011 20:46

Hi Stevie,

We use to have a brake lathe when i was at Rover dealership. this allowed the disc to remain on the car and take into account of any deviation in the hub that the disc bolt too,similar to this You Tube clip -

http://www.youtube.com/watch?v=qAOFErcUMoE

Rover actually rec. this when fitting new discs to ensure everything is true [:0] I think it was because they couldnt make flat discs or hubs [:p]

Stevie, is the carpet under your car [?] Mrs Stevie must be very understanding to let you have the car in the house [;)]

Cheers John

LIVE LIFE A QUARTER OF A MILE AT A TIME!

1976 Speke FHC Beauty

1979 3.5 FHC(STATUS PENDING!!)

1982 2.0 DHC NOW A 4.6,ON THE ROAD NOW KICKING AR5E !!!!

stevie_a · Postby **stevie_a** » 04 Aug 2011 21:14

that Lathe looks brill

by looking it up on the net looks like i may be able to get it done

my garage has two carpets down

(remember I use to work for a carpet cleaning company and I put fire retardant on it...[;)] )

at least you don't get a cold bum when working under the car 

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If it's not broke don't fix it.

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PeterTR7V8 · Postby **PeterTR7V8** » 04 Aug 2011 22:14

The more you skim the weaker the disc so the easier it will warp.

The map: http://tinyurl.com/wedgemap . The blog: http://www.forum.triumphtr7.com/topic.asp?TOPIC_ID=8548

FI Spyder · Postby **FI Spyder** » 05 Aug 2011 15:37

That video reminds me of a TV car show many years ago called Shade Tree Mechanic that had a disc cutter, much simpler that used the power of the car to rotate the wheels. Of course it was only good for front wheel drive, front discs which many of the cars where at the time. Great show but only lasted a year. The fore runner of the many car shows on TV now.

http://www.tvguide.com/tvshows/shadetree-mechanic/episodes/204325

TR7 Spider - 1978 Spitfire - 1976 Spitfire - 1988 Tercel 4X4 - Kali on Integra - 1991 Integra - Yellow TCT

Rich in Vancouver · Postby **Rich in Vancouver** » 06 Aug 2011 22:52

I replaced my front brakes a year or so ago. Recently it developed a severe vibration on braking. Scary as he**! Checking the suspension didn't reveal any problems until I worked my way up to the steering column bushing which was coming apart. Replacing the bushing with poly removed 90% of the vibration, and the remainder was traced to a slightly bent front wheel. With the bushing gone the vibration from the wheel was magnified and fed right through the steering. It had nothing to do with the brakes.

1975 TR7 ACL764U

dursleyman · Postby **dursleyman** » 06 Aug 2011 23:48

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by stevie_a

that Lathe looks brill

by looking it up on the net looks like i may be able to get it done

my garage has two carpets down

(remember I use to work for a carpet cleaning company and I put fire retardant on it...[;)] )

at least you don't get a cold bum when working under the car 

------------------------------------------------------------------------------------------------------------------------------------------------------------------------
If it's not broke don't fix it.

http://www.smallbiztranscripts.co.uk

<hr height="1" noshade id="quote"></blockquote id="quote">I use old vinyl flooring under the car, its warm to lie on and its easy to keep clean. You can also use it when the car is outside and the ground is wet as well.

Russ

1980 TR7 DHC
Dursley
UK

[http://www.flickr.com/photos/16162151@N05/5921648270/in/photostream]

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