Probably stating the obvious here...
Probably stating the obvious here...
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Discussion

swimmer27

Original Poster:

482 posts

211 months

Wednesday 21st August 2013
quotequote all
From my previous post regarding chassis rust
http://www.pistonheads.com/gassing/topic.asp?h=0&a...

Last night I cut out the rotten piece of outrigger tube (about 6")so have made a nice clean cut back to good strong tube but once the cut was made the tube was rotten on the inside! so no matter how much powder coating, waxoyling,hammeriting you do on the chassis it looks like condensation collects inside the tubes which then starts the rotting process!

Like my title say's sorry if I'm stating the obvious but from the outside the chassis tube looked like new but once I had made the cut the inside was rotten as a pear which I was not expecting.

If I was in the position (and I'm not) to have a new chassis fabricated I would drill holes in all the chassis sections / tubes then put one of those Waxoyl tubes inside and then pump in loads of waxoyl, once done either plug the hole with a bung or weld it back up.

Off to a metal supplier today to buy some tube and plate!!

gmw9666

2,739 posts

229 months

Wednesday 21st August 2013
quotequote all
the older TVR's had engine oil squirted into the chassis tubes

mikel003003

1,084 posts

195 months

Wednesday 21st August 2013
quotequote all
I'm going to fill my outriggers with new engine oil mixed with saw chain oil so it's runny and sticky

GadgeS3C

4,727 posts

193 months

Wednesday 21st August 2013
quotequote all
The guy that restored our 3000M filled the chassis tubes with waxoyl goo. I reckon he must have completely filled the tubes as it's gradually finding its way out - keep having to clean it off the back of the car!

Still I suspect the chassis is good!

Griffinr

1,017 posts

203 months

Wednesday 21st August 2013
quotequote all
swimmer27 said:
From my previous post regarding chassis rust
http://www.pistonheads.com/gassing/topic.asp?h=0&a...

Last night I cut out the rotten piece of outrigger tube (about 6")so have made a nice clean cut back to good strong tube but once the cut was made the tube was rotten on the inside! so no matter how much powder coating, waxoyling,hammeriting you do on the chassis it looks like condensation collects inside the tubes which then starts the rotting process!

Like my title say's sorry if I'm stating the obvious but from the outside the chassis tube looked like new but once I had made the cut the inside was rotten as a pear which I was not expecting.
Off to a metal supplier today to buy some tube and plate!!
Have you done a partial body lift for better access?
I suspect the tops of the outriggers at the front outer body mount position have been rotten for some time and been letting the water in. This is were they tend to go first.
Rob.

swimmer27

Original Poster:

482 posts

211 months

Wednesday 21st August 2013
quotequote all
Griffinr said:
Have you done a partial body lift for better access?
I suspect the tops of the outriggers at the front outer body mount position have been rotten for some time and been letting the water in. This is were they tend to go first.
Rob.
Hi Rob
Not lifted the body as of yet although have loosend the bolts that go through the floor and seat belt mounts which gave me enough flex to peek a look, the outriggers were replaced prior to my purchase 4 years ago.

The plastic pipe should last!! just a template

Paul


Edited by swimmer27 on Wednesday 21st August 11:23