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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
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YOUR RESEARCHStuck C4 strut bolts
Leading reported evidence
Install shocks the top mount had siezed
Performed · outcome unconfirmed
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0
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0
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1
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Performed · outcome unconfirmed
When I fitted my new shocks the top mount had siezed on and had to be sawn off!!
Leading evidence: 'Install shocks the top mount had siezed' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install shocks the top mount had siezed' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Performed · outcome unconfirmed
I now remember how I undid it after Demorts post, I too cut off the ball joint with an angle grinder and used a breaker bar and impact socket on the nut with loads of Plus gas.
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Suggestion · Original poster
I read that penetrating oil isn't much use on a steel/Ali corrosive bond.
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Performed · outcome unconfirmed
I now remember how I undid it after Demorts post, I too cut off the ball joint with an angle grinder and used a breaker bar and impact socket on the nut with loads of Plus gas.
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8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 1 discussions
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Generation: 20261026T105141Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
What's the secret to getting these out?
Complete hub and strut assembly is now off the car. The nuts are off the bolts but the bolts seem to have welded themselves in solid. So far I've hit them with fire, plusgas, mallets, tried pressing them with a big clamp and a vice, have thrown every swear word known to man yet they just sit their sticking 2 little rusty fingers up at me.
Who has managed to get these things shifted?
PS. if yours came out easy please don't post as it will only make me angrier.
Sounds the same as mine when I did my suspension a few years ago, I can't actually remember how I removed them in the end (probably erased from memory to avoid PTSD) but I'm pretty sure it would have involved an angle grinder and a breaker bar at some point.
If nothing seems to be working admit defeat and take the whole strut to a garage to undo it, shouldn't cost much.
It's the bolt that holds the strut in the hub carrier.
I think I might try sticking the welder on the end of the bolt to put serious heat through the bolt.
I read that penetrating oil isn't much use on a steel/Ali corrosive bond. So wondered if anyone found a secret potion that works. Read everything from ammonia, caustic soda to strong tea and vinegar.
link rod top arm / bolt .. there is a 17 mm nut behind the ball joint .. i cut the ball joint off to leave just the nut ..
A very powerful airgun and undo / do up .. rinse and repeat many times .
i've never tried too much heat .. and a hot air gun doesn't make any difference .. a penetrating oil is useful but to a small degree .. it won't get into were its corroded i'm afraid .
If no joy then perhaps take the whole lot to a garage and get them to sort it ..
They are a pain at best .
^
I now remember how I undid it after Demorts post, I too cut off the ball joint with an angle grinder and used a breaker bar and impact socket on the nut with loads of Plus gas. Finally got it spinning then spent ages to loosen it further and remove. I bought myself an impact gun afterwards as I don't want to be in that situation again although having said that I don't think a battery Impact gun would have undone the bolt initially just speeded up removing the spinning bolt once loosened. Good luck, luckily the other side wasn't quite as bad.
It's a C4 so the bolt is a little different from a c2. It's just a pinch bolt and not connected to the drop link in anyway. The nuts are off, whipped those off with a big DeWalt gun (1600nm allegedly, whips the 32mm hub nut off like it's finger tight).
I used the gun going forward and back and ended up rounding a bolt head but still no movement. I'll have another go and they still don't shift I'll take to a garage for a big press.
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