TC steering

[HANS HOLTMAN]

Talked to-day to Carl Ord from Moss,Bradford,England . He told me that for improved driving and steering it was vital that no. 59, part no. 261-190, a set of 2 CASTER SHIMS, page 13, were mounted on your car. I ordered at once that set. Maybe some of you do not have it. - As you can see on the drawing they are slightly tapered. Maybe some of you TC gurus already knows about this. I did not. Hans TC 1095 PS. Phone-number to Carl ord at Moss: (44) 01274 735537. Foreign calls, do not use the 0 after 44.

[DAI]

Hans, Vital is a tad strong. Depends on whether one wants to corner/park easily or drive straight easily (easily is a relative term of course). It is not vital. Nor was it standard equipment on early TCs (like your TC1095). DAI --- HANS HOLTMAN hholtman@get2net.dk> wrote: > Talked to-day to Carl Ord from Moss,Bradford,England

> . He told me that for improved driving and steering > it was vital that no. 59, part no. 261-190, a set of > 2 CASTER SHIMS, page 13, were mounted on your car. > > > I ordered at once that set. Maybe some of you do not > have it. - As you can see on the drawing they are > slightly tapered. > > Maybe some of you TC gurus already knows about this. > I did not. > > Hans TC 1095 > > PS. Phone-number to Carl ord at Moss: (44) 01274 > 735537. Foreign calls, do not use the 0 after 44. > > > > > Your use of Yahoo! Groups is subject to > http://docs.yahoo.com/info/terms/ > >

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[Robert Grunau]

Hi All, I removed the shims from my 49 TC and found the steering and tracking much more stable on the road and no apparent improvement on the parking ease . So they stay out. Bob Hans, Vital is a tad strong. Depends on whether one wants to corner/park easily or drive straight easily (easily is a relative term of course). It is not vital. Nor was it standard equipment on early TCs (like your TC1095). DAI --- HANS HOLTMAN hholtman@get2net.dk> wrote: > Talked to-day to Carl Ord from Moss,Bradford,England

> . He told me that for improved driving and steering > it was vital that no. 59, part no. 261-190, a set of > 2 CASTER SHIMS, page 13, were mounted on your car. > > > I ordered at once that set. Maybe some of you do not > have it. - As you can see on the drawing they are > slightly tapered. > > Maybe some of you TC gurus already knows about this. > I did not. > > Hans TC 1095 >

[Chip Old]

On Wed, 30 May 2001, HANS HOLTMAN wrote to T-ABC Group:

> Talked to-day to Carl Ord from Moss,Bradford,England . He told me that > for improved driving and steering it was vital that no. 59, part no. > 261-190, a set of 2 CASTER SHIMS, page 13, were mounted on your car. > > I ordered at once that set. Maybe some of you do not have it. - As you > can see on the drawing they are slightly tapered. > > Maybe some of you TC gurus already knows about this. I did not.

The shims were introduced in late 1947 or early 1948 to reduce the steering effort at low speed, supposedly at the request of American MG dealers. Whether or not they are beneficial is a matter of preference. Adding the shims reduces front wheel caster, which decreases the steering effort at low speeds and while parking. However reduced caster also reduces directional stability at normal driving speeds, so it's a trade-off. Personally I prefer tp omit the shims. -- Chip Old 1948 M.G. TC TC6710 XPAG7430 NEMGTR #2271 Cub Hill, MD, USA 1962 Triumph TR4 CT3154LO CT3479E fold@bcpl.net

[C Sherriff]

Message text written by "HANS HOLTMAN"

>

Talked to-day to Carl Ord from Moss,Bradford,England . He told me that for improved driving and steering it was vital that no. 59, part no. 261-190, a set of 2 CASTER SHIMS, page 13, were mounted on your car. ================================================== Hans They are OK for the TC - not the TA or TB - and dont forget to mount them the right way round !! Clive

[C Sherriff]

Message text written by DAI

>Vital is a tad strong. Depends on whether one wants

to corner/park easily or drive straight easily (easily is a relative term of course). It is not vital. Nor was it standard equipment on early TCs (like your TC1095).

[Frank O_ The Mountain]

In a message dated 5/30/01 11:04:51 AM Pacific Daylight Time, 100070.740@compuserve.com writes: >>

[DAI]

Clive, I do recall the reason for their introduction, but they are not 'vital' as other members have indicated. Perhaps useful, helpful, assisting, depending on the existing geometry of each TC. DAI --- C Sherriff Clives_page@compuserve.com> wrote: > Message text written by DAI

> >Vital is a tad strong. Depends on whether one > wants > to corner/park easily or drive straight easily > (easily > is a relative term of course). > > It is not vital. Nor was it standard equipment on > early TCs (like your TC1095). =============================================== > DAI, > > It was only after complaints started coming in from > the dealers > that the wedge was introduced. > > Its interesting that the TC spring mounting makes > the TC a bit > higher - Ive a TA TB and TC lined up in the garage > and the TC > is visably higher than the other two. > > Clive

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[C Sherriff]

Message text written by INTERNET:TATERRY@aol.com

>

I disagree with you here Clive. It all depends on your axle eye angles, spring condition etc. My TA would not track worth a darn until I installed the shims and Backward to their intended purpose on the TC (which was to make it steer easier but wander even easier!!) Terry

[B Purcell]

Good evening one and all, Has any one out there who has experience of the affect of these wedges on their car's handling, either done, or had someone do, an actual measurement of their car's caster angles? It occurs to me that the difference between Terry and Clive on the impact of the wedges on TA's may be because Clive was referring to installing the wedges in TA/B's in the same orientation that they were intended to have in TC's. Installing the wedges in their TC orientation reduces caster angle - regardless of which TABC type or its previous caster angle. Omitting the wedges from any car designed to use them in the way the TC does, increases the car's caster angle. Installing the wedges 'back to front' further increases caster. Terry found a worth while improvement in his TA by installing the wedges 'back to front' (thereby increasing its positive caster) just as a considerable number of TC owners have found a marked improvement by omitting the wedges (also increasing the positive caster angle). It seems a reasonable proposition that if Terry had installed the wedges in his TA the same way they were intended for the TC, his car's handling may have been worse. It is possible that such a modification could have made his car almost undriveable by giving it a number of degrees of negative caster. Hence my query, has anyone got any factual caster angle data to put against their experience of the affect of these wedges on their car's handling? By the way Clive, I couldn't find your previous explanations of TABC steering on the TABC Yahoo site. Is it feasible for you to send it out again through this forum so it goes into those records and is available for future reference, I'm sure it would be of general interest to Listers. Many thanks Bryan -----Original Message----- From: C Sherriff 100070.740@compuserve.com> To: INTERNET:TATERRY@aol.com TATERRY@aol.com> Cc: hholtman@get2net.dk hholtman@get2net.dk>; 100070.740@compuserve.com 100070.740@compuserve.com>; MG-TABC@yahoogroups.com MG-TABC@yahoogroups.com> Date: Thursday, 31 May 2001 17:26 Subject: Re: [mg-tabc] TC steering

>Message text written by INTERNET:TATERRY@aol.com >> >I disagree with you here Clive. It all depends on your axle eye angles, >spring condition etc. My TA would not track worth a darn until I installed > >the shims and Backward to their intended purpose on the TC (which was to >make >it steer easier but wander even easier!!) >Terry >===================================================== >Hi Terry, > > >Well! your wrong Id say and your point about angles etc shows that - you >are talking about only one car. > >If the set up of a car is wrong nothing will help you = take the whole car >and set >it up properly then the wedges help - If it's been knocked out of shape >over >50 years and everythings to cock then nothing will sort the problems of >steering > >You might remember my big post of a few years ago when I went right >through the whole thing about TABC steering. It's being republished in >the Octagon CC Bulletin right now - part 2 in next issue. Read on! > >You dont fix steering problems by shoving in a wedge - you start by >checking >that the chassis is in alignment and work on from there.......... > >All best, > >Clive > > > >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > >