using a rivnut to attach droplink to control arm?
Discussion
Hey, I've been changing out the bushings on the front wishbones of my mk4 golf, whilst tightening the bolt that attaches the droplink to the control arm the welded nut on the inside of the arm broke free and is now free spinning,
The inside of the arm isn't accessible, so reattaching or holding the captive bolt isn't possible and as it's made of stamped sheet metal there isn't enough meat to tap threads or use a helicoil.
Do you reckon I could get away with drilling out the hole and using a rivnut to bolt to? The torque spec for that bolt is 15mm + 90° so it's not torqued down a huge amount, it's more of a case of will it hold up to driving force
Increadibly annoying as that droplink bolt was the last one to go back on when refitting the arm meaning if this nut hadn't given out the job would be done
I'd prefer not to have to replace the arm as I've just pressed in polybushes and I'm worried about damaging them trying to remove and re - press them into a new arm. But that's what I'll do if rivnut would be too weak
The inside of the arm isn't accessible, so reattaching or holding the captive bolt isn't possible and as it's made of stamped sheet metal there isn't enough meat to tap threads or use a helicoil.
Do you reckon I could get away with drilling out the hole and using a rivnut to bolt to? The torque spec for that bolt is 15mm + 90° so it's not torqued down a huge amount, it's more of a case of will it hold up to driving force
Increadibly annoying as that droplink bolt was the last one to go back on when refitting the arm meaning if this nut hadn't given out the job would be done
I'd prefer not to have to replace the arm as I've just pressed in polybushes and I'm worried about damaging them trying to remove and re - press them into a new arm. But that's what I'll do if rivnut would be too weak
I've got a mk4 estate, I've had a similar problem
New arb bush and the thread stripped on the droplink mounting point.
I tried a helicoil type thing but this pulled out after a while.
I'm going to replace the arm, it's not a huge job , YouTube is your friend.
I'm also going to use the nearest to stock spec as I can as lots seem below par
New arb bush and the thread stripped on the droplink mounting point.
I tried a helicoil type thing but this pulled out after a while.
I'm going to replace the arm, it's not a huge job , YouTube is your friend.
I'm also going to use the nearest to stock spec as I can as lots seem below par
ssray said:
I've got a mk4 estate, I've had a similar problem
New arb bush and the thread stripped on the droplink mounting point.
I tried a helicoil type thing but this pulled out after a while.
I'm going to replace the arm, it's not a huge job , YouTube is your friend.
I'm also going to use the nearest to stock spec as I can as lots seem below par
Already got a new arm on the way, already dropped them out out previously to change over the bushes so not too worried about swapping the arm New arb bush and the thread stripped on the droplink mounting point.
I tried a helicoil type thing but this pulled out after a while.
I'm going to replace the arm, it's not a huge job , YouTube is your friend.
I'm also going to use the nearest to stock spec as I can as lots seem below par
- the welded nut gave out as I was putting the N/s back on If anyone has any tips for extracting a polybush from the control arm front bushing unharmed enough to be reused (single piece type with a crush tube from superpro) thats what I'm worried about (and why I was considering the rivnut) as ideally I don't want to have to rebuy the polybushes when they haven't done a single mile
Just to reiterate the thoughts of others to your original question..... No.
Poly bushes are actually very robust & will generally take a lot of persuasion/abuse to fit/remove them when required.
Without seeing yours I am not exactly sure how you will do it, but I have used "jubilee clips" or similar before to reduce the diameter enough to push them out before.
Poly bushes are actually very robust & will generally take a lot of persuasion/abuse to fit/remove them when required.
Without seeing yours I am not exactly sure how you will do it, but I have used "jubilee clips" or similar before to reduce the diameter enough to push them out before.
E-bmw said:
Just to reiterate the thoughts of others to your original question..... No.
Poly bushes are actually very robust & will generally take a lot of persuasion/abuse to fit/remove them when required.
Without seeing yours I am not exactly sure how you will do it, but I have used "jubilee clips" or similar before to reduce the diameter enough to push them out before.
Yeah, thought I'd pick peoples brains as I'd never used rivnuts, got the suggestion from someone at my work and I thought id consider it aha, already ordered a new wishbone in any case.Poly bushes are actually very robust & will generally take a lot of persuasion/abuse to fit/remove them when required.
Without seeing yours I am not exactly sure how you will do it, but I have used "jubilee clips" or similar before to reduce the diameter enough to push them out before.
Jubilee clip seems like a good shout, do you reckon it's worth trying to press out the metal crush tube from the middle first or do it all in one go - for reference the bushing is a SuperPro SPF1915K (can't post links as this is a new account),
though in finding the specific part number an octaneologists page has popped up where they're £12.50 a pair rather than the £45 everywhere else I've found them, so I'm immediately feeling much less precious about it
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