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-   -   Oooooooh ffffffffffffuuuuuuuuuu! Subframe bent on curb @#!$%$#@ (https://www.miataturbo.net/suspension-brakes-drivetrain-49/oooooooh-ffffffffffffuuuuuuuuuu-subframe-bent-curb-%40-%24%25%24-%40-41494/)

Laur3ns 11-26-2009 03:50 PM

Lower ball joint, you mean this one?
http://www.mx5centre.com.au/images/L...ll%20Joint.JPG

Somewhere it says:

(uprights should also be exchanged to retain improved NB steering geometry).
What are uprights?

Laur3ns 11-26-2009 04:00 PM

Interesting!

The steering ratios are not the same between the power and manual racks for an NB. They're both faster than the NA equivalent, though.
Turns, lock-to-lock. Rack stroke is the same.
NA manual: 3.36
NA power: 2.80
NB manual: 3.17
NB power: 2.65
And

The NA and NB control arms are the same, geometrically speaking. The only difference is the sway bar mounting point. In fact, if you buy an NA replacement control arm you'll get an NB part. The changes in caster came from the control arm mounting point on the subframe, so you'll get them if you install an NB subframe.

The steering arm on the uprights was moved up by 7mm on the NB, IIRC. The rear uprights have 5mm more track per side. The rear subframe is the same other than exhaust and brace mounting points.
Seems I don't need uprights if I just raise the steering rack with spacers?

Savington 11-26-2009 07:16 PM

Interesting, I didn't know the NB uprights moved the steering arm. The upright is what attaches the hub to the two control arms, the only upright piece in the suspension. It's all aimed at getting the tie rods to sit as level as possible to get rid of bumpsteer.

sixshooter 11-27-2009 12:20 AM

The subframe is a hell of a lot stronger than the sheet metal bodyshell it bolts to. I sure hope you didn't end up with a tweaked bodyshell. If it was strong enough to bend the subframe like that, it is unfortunately a possibility.

Good luck, brother.

Laur3ns 11-27-2009 04:44 AM


Originally Posted by sixshooter (Post 487567)
The subframe is a hell of a lot stronger than the sheet metal bodyshell it bolts to. I sure hope you didn't end up with a tweaked bodyshell. If it was strong enough to bend the subframe like that, it is unfortunately a possibility.

How do we figure that out?


Good luck, brother.
Thanks!

I am having the subframe and steering rack with inner tie-rods and an oil pan coming my way.

Laur3ns 11-27-2009 05:39 AM


Originally Posted by Oscar (Post 487144)
told you that you couldn't drive :giggle:
j/k, that sucks. Let me know if you need a hand tho

I will probably wrap it up for now and have the cages build. I already ordered some replacement parts. Would welcome a helping hand!

jedduh01 11-27-2009 07:51 AM

Ouch. Goodluck on the repiar... In AmERRIca you could blame the DOT for that, then require them to paint every curb dayglow yellow... Happened locally for me.

In the Volvo Dealership, we have replaced multiple oil pans becasue of the same thing. Could have been worse for you.

y8s 11-27-2009 10:37 AM


Originally Posted by Spookyfish (Post 487607)
How do we figure that out?

you'll know when you mate up a new subframe if they dont sit flush probably.

Laur3ns 11-29-2009 04:01 PM

Oil cooler is damaged (vanes) but intercooler only had bent mounting tabs.

chance91 11-30-2009 12:39 AM


Originally Posted by y8s (Post 487638)
you'll know when you mate up a new subframe if they dont sit flush probably.

as well, they might be able to figure some of it out when aligning the car.

A good idea hear since the car was tweaked would be to go to a good body shop for your alignment, so that you have experienced/competent people who can look at it and tell you whats what.

Laur3ns 12-04-2009 03:28 PM

1 Attachment(s)
So, starting work on replacing the subframe and steering rack.
Is this how I should fix the engine while I remove the lower parts?

Serious question.

sixshooter 12-04-2009 05:11 PM

Wow.

Oscar 12-04-2009 05:30 PM


Originally Posted by Spookyfish (Post 490953)
So, starting work on replacing the subframe and steering rack.
Is this how I should fix the engine while I remove the lower parts?

Serious question.

is it supported by the fenders?

dustinb 12-04-2009 05:38 PM


Originally Posted by Spookyfish (Post 490953)
So, starting work on replacing the subframe and steering rack.
Is this how I should fix the engine while I remove the lower parts?

Serious question.

It it's on the seam for the fenders, then no. It'll just curl.

Laur3ns 12-04-2009 05:38 PM


Originally Posted by sixshooter (Post 491020)
Wow.

Wow whut?

Yes - on the fender rails, thats how it's supposed to be used.

Oscar 12-04-2009 06:19 PM

if that's how it is supposed to be, go for it

Laur3ns 12-05-2009 05:06 AM


Originally Posted by dustinb (Post 491034)
It it's on the seam for the fenders, then no. It'll just curl.

You know so or you think so?

jedduh01 12-05-2009 09:59 AM

That engine steady is perfectly fine the way it is... we use that method all the time for Volvo repairs. (subframes , oil pans , power steering rack replace etc) Typically we have two... but that one should suffice...

The fender is bolted to the inner fender... which is the structual part of the front end.

Your good to go...

Laur3ns 12-05-2009 10:49 AM


Originally Posted by jedduh01 (Post 491210)
That engine steady is perfectly fine the way it is... we use that method all the time for Volvo repairs. (subframes , oil pans , power steering rack replace etc) Typically we have two... but that one should suffice...

The fender is bolted to the inner fender... which is the structual part of the front end.

Your good to go...

Thanks
:bowrofl:

Laur3ns 12-05-2009 04:33 PM

Engine Support — 1100-Lb. Capacity | Hoisting Accessories | Northern Tool + Equipment

Seems its available in the US too.


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