rubber mounting to chassis member rear suspension cradle

Talk about the E-Type Series 1

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Jerryslinn
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#1 rubber mounting to chassis member rear suspension cradle

Post by Jerryslinn » Tue Jan 19, 2021 12:57 pm

I have a bolt which seems to be rusted to the guide tube in the chassis member where the rubber mounting block is attached. I have dropped the cradle and removed it but cannot release this bolt despite soaking with release oil for a couple of days. The bolt spins and has some movement in and out but will not come free.
Anyone had this problem?

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Gfhug
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#2 Re: rubber mounting to chassis member rear suspension cradle

Post by Gfhug » Tue Jan 19, 2021 2:59 pm

Jerry, it’s at times like this that a photo will help show just what your problem is.
Have you tried pressing it out with a g-cramp with a socket over the open end?
Might be worth trying

Geoff
S2 FHC Light Blue
S2 OTS LHD - RHD full restoration

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christopher storey
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#3 Re: rubber mounting to chassis member rear suspension cradle

Post by christopher storey » Tue Jan 19, 2021 3:13 pm

Jerry : a very common problem. What I suggest you do is make sure that the cradle is supported, then make up a drift longer in length but smaller in diameter than the bolt, which IIRC is 5/16" and then tap the bolt out from the inside .

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Jerryslinn
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#4 Re: rubber mounting to chassis member rear suspension cradle

Post by Jerryslinn » Tue Jan 19, 2021 6:59 pm

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Photo of seized bolt. Will try with a G clamp tomorrow - thanks for help

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44DHR
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#5 Re: rubber mounting to chassis member rear suspension cradle

Post by 44DHR » Tue Jan 19, 2021 8:55 pm

Hi Jerry,
Also doing a bit of work on my rear axle at the moment.
This is the stuff I use - Crack-it Shock-Freeze Release Spray. Better than using heat and the freeze action breaks the corrosion seal, plus it contains a penetrating oil as it freezes the components down to - 50 degrees C.
Great stuff at £7.45 from Screwfix and other suppliers.
Cheers,
Dave

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Dave Rose
1967 Series 1 4.2 FHC

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Jerryslinn
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#6 Re: rubber mounting to chassis member rear suspension cradle

Post by Jerryslinn » Tue Jan 19, 2021 9:33 pm

Thanks for the tip Dave - will try to get some tomorrow - just hope I can get it to penetrate into the chassis arm.
As you can see from the photo access is limited and if the bolt is rusted to the guide tube over its full length then it may take several applications along with pressure with the G clamp and probably some persuasion with the lump hammer!

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44DHR
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#7 Re: rubber mounting to chassis member rear suspension cradle

Post by 44DHR » Tue Jan 19, 2021 11:15 pm

Jerry,
With the end of the bolt sticking out, it could be a long liberal spray on that part will freeze the bolt through the sleeve and the freezing action will “crack” the corrosion joint between them. It is quite clever stuff in that you let it do it’s own work in a couple of minutes after applying, as the two “joined” components will return to room temperature at different rates and effectively separate with the added action of the penetrating oil. Sometimes you can actually hear a “crack” as the action takes place.
Cheers,
Dave
Dave Rose
1967 Series 1 4.2 FHC

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politeperson
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#8 Re: rubber mounting to chassis member rear suspension cradle

Post by politeperson » Wed Jan 20, 2021 11:37 am

I guess you dont want to clout it all too hard, or you risk damaging the chassis leg.

This good old stuff has a large fan base for unseizing rusted metal. It has magic ingredients.

https://www.ebay.co.uk/itm/PB-BLASTER-P ... SwogVf-D8O
James

L.J.K. Setright was right.
"You just cant beat a good E-type"

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Jerryslinn
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#9 Re: rubber mounting to chassis member rear suspension cradle

Post by Jerryslinn » Thu Jan 21, 2021 2:34 pm

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Many thanks to all who have offered their help - I have today cut off the head of the bolt and removed the mounting bracket. This allowed me to drive the bolt and tube out together leaving the oversized hole shown in the photo. I now have to find a way to get a sleeve back into the chassis leg and close up the hole

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