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Someone speculated earlier today that suspension settings may have been adju=
sted when the car was in build at the factory to compensate for driver weigh=
t? Not so, I=E2=80=99m afraid. How do you compensate for a left or right wei=
ght bias when you don=E2=80=99t know in advance what that weight would be? W=
hen the cars were new and going through the water test and on the rolling ro=
ad at the end of Final Finish, it was clear for everyone to see that one sid=
e of the sat lower than the other as long as someone was in it. Over time, a=
nd especially on cars of Herald or Herald derivative suspension type, the st=
ance always adopted a marginal sag on whichever side the driver sat. That wa=
s the price you paid for such outstanding engineering:)
Jonmac
Vote for Guy Fawkes! The only man who entered Parliament with honest intenti=
ons.
> On 25 Mar 2021, at 02:22, Sujit Roy <triumphstag@gmail.com> wrote:
>=20
> Can the engine rotation cause one side to lean more. I've heard that about=
Stags
>=20
>> On Wed, Mar 24, 2021, 7:14 PM David Brady <dmb993@earthlink.net> wrote:
>> When you figure this out, please let us know. I've had the same question a=
bout my TR250. In my case the steer and drive axles on the right hand side a=
re quarter inch or so higher than the left. Correct or not, I attribute this=
to these cars being setup as RHD and Triumph tweaking the right side slight=
ly higher to attribute for pilot weight. Of course, this doesn't help things=
on this side of the pond.
>>=20
>> David Brady
>> '68 TR250
>> CD8124L
>>=20
>> -----Original Message-----
>> >From: Jim Henningsen <trguy75@gmail.com>
>> >Sent: Mar 23, 2021 8:06 PM
>> >To: triumphs@autox.team.net
>> >Subject: [TR] TR4A IRS Suspension Question
>> >
>> >Ok, just finished redoing front and rear suspension on my 67 4A IRS.
>> >Complete disassembly, clean, repaint, new urethane bushings, tie rod end=
s,
>> >trunnions, etc. New comp springs ( 1 inch lower) all corners, new stock=
>> >tubes shocks up front and new KYB gas shocks on the tube shock conversio=
n
>> >brackets for the IRS. Reinstalled all alignment shims as installed as t=
he
>> >car drove pretty straight. Urethane packings on springs.=20
>> >
>> >After completing, I noticed that all four corners have a slightly differ=
ent
>> >ride height when measured from garage floor to bottom on fender lip at
>> >center of each wheel. Left front: 26 3/4 inches, Right front: 26 1/4, L=
eft
>> >rear: 27 3/8, right rear: 27 7/8. I think the higher rear height is com=
ing
>> >from the tube shock conversion as it was lower with the levers. So ab=
out
>> >a half inch off each side. I don't recall having this issue when I red=
id
>> >my TR6, but that was a while ago. Rears also have stock trailing arm
>> >brackets (one and two notch brackets on each side - believe these are
>> >original from new given history of the car). =20
>> >
>> >Looking for help on next steps before bringing it in for an alignment. W=
ill
>> >alignment correct height difference or do I need to add 1/2 inch spacers=
on
>> >lower sides. I am going to put uprated valved levers back on rear to
>> >eliminate the extra height in rear. =20
>> >
>> >Any help appreciated. =20
>> >
>> >Thanks
>> >Jim Henningsen
>> >Ocala FL
>> >Too many TRs to maintain!
>> >61 3A
>> >62 4
>> >67 4A
>> >75 6
>> >81 8
>> >
>> >** triumphs@autox.team.net **
>> >
>> >Donate: http://www.team.net/donate.html
>> >Archive: http://www.team.net/pipermail/triumphs http://www.team.net/arc=
hive
>> >
>> >Unsubscribe/Manage: http://autox.team.net/mailman/options/triumphs/dmb99=
3@earthlink.net
>> ** triumphs@autox.team.net **
>>=20
>> Donate: http://www.team.net/donate.html
>> Archive: http://www.team.net/pipermail/triumphs http://www.team.net/arch=
ive
>>=20
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/triumphs/triump=
hstag@gmail.com
> ** triumphs@autox.team.net **
>=20
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/pipermail/triumphs http://www.team.net/archi=
ve
>=20
> Unsubscribe/Manage: http://autox.team.net/mailman/options/triumphs/john.ma=
cartney@ukpips.org.uk
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">Someone speculated earlier today that suspe=
nsion settings may have been adjusted when the car was in build at the facto=
ry to compensate for driver weight? Not so, I=E2=80=99m afraid. How do you c=
ompensate for a left or right weight bias when you don=E2=80=99t know in adv=
ance what that weight would be? When the cars were new and going through the=
water test and on the rolling road at the end of Final Finish, it was clear=
for everyone to see that one side of the sat lower than the other as long a=
s someone was in it. Over time, and especially on cars of Herald or Herald d=
erivative suspension type, the stance always adopted a marginal sag on which=
ever side the driver sat. That was the price you paid for such outstanding e=
ngineering:)<div><br></div><div>Jonmac<br><br><div id=3D"AppleMailSignature"=
dir=3D"ltr">Vote for Guy Fawkes! The only man who entered Parliament with h=
onest intentions.</div><div dir=3D"ltr"><br>On 25 Mar 2021, at 02:22, Sujit R=
oy <<a href=3D"mailto:triumphstag@gmail.com";>triumphstag@gmail.com</a>>=
; wrote:<br><br></div><blockquote type=3D"cite"><div dir=3D"ltr"><div dir=3D=
"auto">Can the engine rotation cause one side to lean more. I've heard that a=
bout Stags</div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gma=
il_attr">On Wed, Mar 24, 2021, 7:14 PM David Brady <<a href=3D"mailto:dmb=
993@earthlink.net">dmb993@earthlink.net</a>> wrote:<br></div><blockquote c=
lass=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;p=
adding-left:1ex">When you figure this out, please let us know. I've had the s=
ame question about my TR250. In my case the steer and drive axles on the rig=
ht hand side are quarter inch or so higher than the left. Correct or not, I a=
ttribute this to these cars being setup as RHD and Triumph tweaking the righ=
t side slightly higher to attribute for pilot weight. Of course, this doesn'=
t help things on this side of the pond.<br>
<br>
David Brady<br>
'68 TR250<br>
CD8124L<br>
<br>
-----Original Message-----<br>
>From: Jim Henningsen <<a href=3D"mailto:trguy75@gmail.com"; target=3D"=
_blank" rel=3D"noreferrer">trguy75@gmail.com</a>><br>
>Sent: Mar 23, 2021 8:06 PM<br>
>To: <a href=3D"mailto:triumphs@autox.team.net"; target=3D"_blank" rel=3D"=
noreferrer">triumphs@autox.team.net</a><br>
>Subject: [TR] TR4A IRS Suspension Question<br>
><br>
>Ok, just finished redoing front and rear suspension on my 67 4A IRS.<br>=
>Complete disassembly, clean, repaint, new urethane bushings, tie rod end=
s,<br>
>trunnions, etc. New comp springs ( 1 inch lower) all corners, new s=
tock<br>
>tubes shocks up front and new KYB gas shocks on the tube shock conversio=
n<br>
>brackets for the IRS. Reinstalled all alignment shims as installed=
as the<br>
>car drove pretty straight. Urethane packings on springs. <br>
><br>
>After completing, I noticed that all four corners have a slightly differ=
ent<br>
>ride height when measured from garage floor to bottom on fender lip at<b=
r>
>center of each wheel. Left front: 26 3/4 inches, Right front: 26 1=
/4, Left<br>
>rear: 27 3/8, right rear: 27 7/8. I think the higher rear height i=
s coming<br>
>from the tube shock conversion as it was lower with the levers. &n=
bsp; So about<br>
>a half inch off each side. I don't recall having this issue w=
hen I redid<br>
>my TR6, but that was a while ago. Rears also have stock trai=
ling arm<br>
>brackets (one and two notch brackets on each side - believe these are<br=
>
>original from new given history of the car). <br>
><br>
>Looking for help on next steps before bringing it in for an alignment.&n=
bsp; Will<br>
>alignment correct height difference or do I need to add 1/2 inch spacers=
on<br>
>lower sides. I am going to put uprated valved levers back on rear t=
o<br>
>eliminate the extra height in rear. <br>
><br>
>Any help appreciated. <br>
><br>
>Thanks<br>
>Jim Henningsen<br>
>Ocala FL<br>
>Too many TRs to maintain!<br>
>61 3A<br>
>62 4<br>
>67 4A<br>
>75 6<br>
>81 8<br>
><br>
>** <a href=3D"mailto:triumphs@autox.team.net"; target=3D"_blank" rel=3D"n=
oreferrer">triumphs@autox.team.net</a> **<br>
><br>
>Donate: <a href=3D"http://www.team.net/donate.html"; rel=3D"noreferrer no=
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errer noreferrer" target=3D"_blank">http://www.team.net/pipermail/triumphs</=
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</blockquote></div>
</div></blockquote><blockquote type=3D"cite"><div dir=3D"ltr"><span>** <a hr=
ef=3D"mailto:triumphs@autox.team.net";>triumphs@autox.team.net</a> **</span><=
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