Self wheel alignment on FB

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KiwiDave
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Joined: Sat Nov 05, 2011 8:07 pm
Location: Feltham, Southwest London

Re: Self wheel alignment on FB

Post by KiwiDave » Wed Mar 08, 2017 10:09 pm

tomsmy wrote:So just to clarify, the lettering is as per the attached picture?

Thanks guys, Tom
Diagram needs rearranging. On both sides, swap B and D

Top runs A B C D clockwise
Bottom runs A B C D anti clockwise

As per http://www.rx7fb.com/viewtopic.php?f=8&t=3781#p37409
1985 Sunrise Red S3 TWR
2003 Mercedes E320 CDI Estate AMG

daily rotor
Posts: 57
Joined: Sun Oct 25, 2015 1:16 am

Re: Self wheel alignment on FB

Post by daily rotor » Thu Apr 13, 2017 8:37 am

hey guys just a minor update on my 1st time self wheel alignment.
as of the last update i was debating on what to do with the caster
part of the alignment.
to get it close to even on both sides
i had to adjust drivers side all the way to one end of the caster rod adjustment
and the passengers side all the way to opposite end of adjustment.
not being a wheel alignment mechanic
i knew there was something instantly wrong with it being like this.
thought maybe caster/tension rods were bent
nup they were ok
scary thoughts like bent chasis entered my thoughts
still a possibility
then lying under the car hurting my brain thinking
iv looked over to the passengers side lower control arm
and it was bent and twisted
looked to the drivers side and it was even more obvious
so my self wheel alignment has come to an abrupt end.
still pissed off the wheel alignments at two different places
couldnt report back to me the struts being in different positions
the caster being not even close
but for these professionals to miss a bent and twisted LCA
i was grateful to the last place challenging me to do it myself.
so i done what any stubborn rotor owner would do
ordered some beefy adjustable LCA from techno toy tuning :D
then i thought i might as well order some of their sexy caster/torsion rods
and couldnt stop there and ordered a strut tower brace as well.
in the meantime i ordered some inner & outer tie rod ends from rockauto
as well as some strut top mount plates.
waiting on arrival from techno toy tuning parts to rip into front end.
and not being the type to be able to help himself
ordered lowered front and rear springs from pedders suspension.
as well as gas shocks.
fitted the rear springs and shocks the other day
planning to rebush the watts linkage over easter weekend,
they look pretty worn.
and rear end will be pretty much taken care off.
all the meantime car has still been a daily driver.
cant wait for final parts to arrive next week
and finish that self wheel alignment i vowed to do yay

daily rotor
Posts: 57
Joined: Sun Oct 25, 2015 1:16 am

Re: Self wheel alignment on FB

Post by daily rotor » Tue Apr 18, 2017 12:22 am

after doing some online studies (for what it is worth) on watts linkage set ups.
as i had been experiencing some binding in the suspension from rear of car.
especially 1 st thing in the morning when car had been sitting for a period.
now i should note my car is an outright street car driven enthusiastically.
3 common themes that seemed to be getting said were
1. get rid of the watts linkage for panhard/ or tri link set up
2. keep the original rubbers in watts linkage set up/avoid poly
3. binding will be worse if lowering the suspension

now i consider myself to be a car tinkerer with low basic skills,
and an even crappier tool kit, i own an el cheapo jack which barely jack my car
35cm off the ground, and own 2 jack stands.
and recently bought lowered springs for my rx7, i was dreading the thought of
installing the springs and making the binding issue worse.
anyhow after installing the pedders low springs which lowered the car 1`` at front
and 1 1/4`` at rear. binding had been reduced by a massive 95%.
and on the weekend i fitted Super Pro Poly bushes to the watts linkage
which i would like to say was probably the toughest job to date for me
many times i needed an extra set of hands. took my sorry arse about 6 hours to do,
would of been longer if i didnt have access to a friends bench vice (make do press)
once again my biggest fear was i could be making this worse going against the advice
watt a difference (excuse the pun) after 6 hours of toiling away 2 hands full of metal
splinters (no i dont use gloves working on my car) to get into the car afterwards,
was slight binding reversing turning out of driveway, im sure that was just everything
falling into place.
it has not made a binding noise since
feels like a great improvement to drive
so if ur running a street driven rx7, dont fear putting poly bushes in the watts linkage
fear doing the job urself :D

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KYPREO
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Re: Self wheel alignment on FB

Post by KYPREO » Tue Apr 18, 2017 2:07 am

Putting poly into the watts link is fine. Same with lower control arms.

The recommendation I was given was to leave the upper control arms with the factory shagged rubber bushes, which will delay the watts link binding up. The more shagged the better. It's a bit of a bandaid solution, but will work for people who don't push the car hard enough to induce binding.

In terms of inhibiting general "tailiness", I also recommend running a thicker front swaybar (suggest 25mm) and remove the rear swaybar/stabiliser bar altogether. Saves a few kg in weight too.

daily rotor
Posts: 57
Joined: Sun Oct 25, 2015 1:16 am

Re: Self wheel alignment on FB

Post by daily rotor » Tue Apr 18, 2017 2:54 pm

running a 23mm sway on front and 15mm on rear.
i did remove the diff brake line protection cover to reduce weight maybe half kilo there.
if it displays any tailiness ill remove rear sway bar, think it would be 3 - 5 kgs there.
only time ive experienced tailinesss is with 185/65r14 tyres. currently on 215/40r16 tyres
also car is running poly bushes on both upper and lower trailing arms installed by previous owner.
techno toy tuning lower control arms, tension rods and strut tower brace arrived today.
unfortunately rain forecast for tomorrow.
so will get stuck into on thursday
if anyone has any good info/opinions on for and against widening or narrowing the front track of their 1st gen rx7s please feel free to post them here
the Length adjustable from .25" below factory to 1.5" over factory.
also if they have knowledge on the 3 settings for sway bar and torsion rod positioning.
im assuming the middle setting in each would be close to stock, depending on the width or narrowness i would choose to set the control arms on at the start

daily rotor
Posts: 57
Joined: Sun Oct 25, 2015 1:16 am

Re: Self wheel alignment on FB

Post by daily rotor » Sun Apr 30, 2017 6:38 am

next update
ok never the one for things to go smoothly :)
i have installed my techno toy tuning adjustable Lower control arms,
torsion rods and new tie rod ends set up.
i had a major hiccup
the outer part of my new LCA
came into contact with my outer 5mm of my disc brake rotor on turning corners
i cried loudly but it was to no avail.
this was with the LCA on its minimum adjustment.
to be fair the whole problem was caused by my running 295mm brake discs.
anything under 280mm would clear easily.
so i have had no choice but to order some roll centre adjusters from T3.
so my LCAs can clear discs easily.
and i can adjust LCAs out closer to max track, to get that neg camber i desire.
but loving how easily adjustable everything is now.
and all the headaches involved and just taught me to know my own car better
now i can just hop under adjust camber,caster or toe so easily
even knowing what size spanner for what.
got my roll centre adjusters arriving on my next day off.
cant wait for final tweaking of wheel alignment
and then heading out to enjoy it :)

daily rotor
Posts: 57
Joined: Sun Oct 25, 2015 1:16 am

Re: Self wheel alignment on FB

Post by daily rotor » Wed Jun 28, 2017 9:31 am

bit of an update after playing around with settings
was running about 3.5 degrees of neg camber
cornered insanely well, unfortunately with that setting
every bump in the road had the car wavering around in a straight line.
recently backed it off to about 2 degrees of neg camber
which improved the straight line stability alot.
and the cornering still leaves me happy.
when time allows i might play around with 1.5 deg of neg camber
also scored some front Tokico Illumina 5 position externally adjustable shockies part number #BZ1069
so looking forward to getting the time to install them.

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Hobbawobba
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Joined: Tue Nov 01, 2011 9:44 pm
Location: Worcester - UK

Re: Self wheel alignment on FB

Post by Hobbawobba » Wed Jun 28, 2017 11:50 am

Those Techno Toy Tuning control arms looks really nice aye. Maybe one day I'll pick some up haha. Nice work on getting some new flashy dampers aye :D . Got any pictures of the updated setup at all? 0-0

daily rotor
Posts: 57
Joined: Sun Oct 25, 2015 1:16 am

Re: Self wheel alignment on FB

Post by daily rotor » Fri Jun 30, 2017 9:24 am

just so happen to have the weekend off which is a rarity.
car is in desperate need of a wash.
so will endeavour to take a few snaps of it.
when i scored them shockies, i got with it
2 rust free doors :D (omg more future projects i dont have time for)
2 spare stock control arms
brake booster
2 26 spline axles (just in case)
was surplus of some ex rx7 racer who just didnt want to look at them anymore.

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Hobbawobba
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Location: Worcester - UK

Re: Self wheel alignment on FB

Post by Hobbawobba » Fri Jun 30, 2017 11:31 am

Oh good score aye! :o

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