1850 front subframe bush renewal.

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MIG Wielder
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1850 front subframe bush renewal.

#1 Post by MIG Wielder »

In order to renew the front subframe bushes on an 1850 I imagine its done by supporting the body and just slackening all 4 nuts, withdrawing the bolts one by one, and replacing the bushes. Sorted!
Now supposing even just one of the bolts is rusted in the chassis rail tube does this mean that the entire subframe has to come off to get it lowered enough to extract the bushes ? ( Steering rack off; brake hoses off; support engine; water hoses off; etc; etc; ) ?
Lots of Plus-Gas and heat I imagine will be needed as an alternative ?
Thanks ,Tony.
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xvivalve
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Re: 1850 front subframe bush renewal.

#2 Post by xvivalve »

If you are really unlucky, the bolt (usually offside front) will have corroded into the 'top hat' spacer which results in having to cut the bolt above the spacer and renew....or live with it as is!

I've not encountered the bolts corroded to the ferrule tubes; they normally rust away before that can happen!
Carledo
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Re: 1850 front subframe bush renewal.

#3 Post by Carledo »

xvivalve wrote: Thu Jun 28, 2018 7:30 pm If you are really unlucky, the bolt (usually offside front) will have corroded into the 'top hat' spacer which results in having to cut the bolt above the spacer and renew....or live with it as is!

I've not encountered the bolts corroded to the ferrule tubes; they normally rust away before that can happen!
On that white 1500HL I broke recently, all 4 bolts were seized solid in the ferrule tubes, the frame still came off! And would have gone back on again if need be!

I find the best tecnique is to drop one end (rather than one corner) at a time supporting it on a scissor jack or similar.

Steve
'73 2 door Toledo with Vauxhall Carlton 2.0 8v engine (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine (The Dolomega)
'72 Triumph 1500FWD in Slate Grey, Now with RWD and Carledo powertrain!

Maverick Triumph, Servicing, Repairs, Electrical, Recomissioning, MOT prep, Trackerjack brake fitting service.
Apprentice served Triumph Specialist for 50 years. PM for more info or quotes.
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