a leaking engine, trans and diff are a blessing in disguise 
Front vs back discrepancies.
Thread Starter
Instructor
Joined: Oct 2005
Posts: 195
Likes: 0
From: Austin Tx
Front vs back discrepancies.
I started messing around with my ‘no history’ 68 with the back end, working on the brakes. The entire frame, rear half axles, etc are all coated with a generous coating of rust. Everything I messed with took a lot of bolt spray/wire brushing to get to the bolts.
Up front, the frame is still painted nice and black, the bolts look mostly new, and there is very little rust.
Is that normal, or did someone along the way just keep better care of the front half?
Up front, the frame is still painted nice and black, the bolts look mostly new, and there is very little rust.
Is that normal, or did someone along the way just keep better care of the front half?
Le Mans Master
Joined: Jul 2005
Posts: 5,752
Likes: 4
From: Austin Texas
3 things at play here....The front wheels spray water onto the frame behind them, and the heat coming from the engine tends to dry the front portion of the frame, and lastly, the engine oil leaks prevent rust!. 
Le Mans Master
Joined: Jun 2002
Posts: 8,339
Likes: 24
From: I can walk to MA
Yes, oil leaks are sometimes a blessing .. unless you are
scraping 30 years of differential lube from the fiberglass belly.
Don't discount the fact that someone may have rebuilt the front
suspension/etc and cleaned/painted while in there.
It might be time to do the rear, but it sounds like you are already started.
Check out www.por15.com
Also, Rust Bullet and Rust Encapulator are similar products.
Here are some pics to interest you ... my caliper/MC rebuild thread.
They are finished (outside) with silver POR15 ... won't melt with brake fluid.
http://forums.corvetteforum.com/show...um_id=3&arch=1
scraping 30 years of differential lube from the fiberglass belly.
Don't discount the fact that someone may have rebuilt the front
suspension/etc and cleaned/painted while in there.
It might be time to do the rear, but it sounds like you are already started.
Check out www.por15.com
Also, Rust Bullet and Rust Encapulator are similar products.
Here are some pics to interest you ... my caliper/MC rebuild thread.
They are finished (outside) with silver POR15 ... won't melt with brake fluid.
http://forums.corvetteforum.com/show...um_id=3&arch=1
Last edited by NHvette; Oct 17, 2005 at 02:46 PM.
Thread Starter
Instructor
Joined: Oct 2005
Posts: 195
Likes: 0
From: Austin Tx
Originally Posted by NHvette
Le Mans Master
Joined: Jun 2002
Posts: 8,339
Likes: 24
From: I can walk to MA
Yes - but POR15 applies well over lightly rusted surfaces.
Paint-Over-Rust
Wirebrush and/or sandpaper will get most of it.
To be thorough, I alway recommend a Phosphoric Acid solution.
POR has Metal Ready, but you can find others at retail outplets.
I liek Must for Rust (used to be at Home Depot) and Naval Jelly ...everywhere.
These solutions will dissolve the rust and treat the surface
for better adhesion.
... I added a link to my brake caliper post above ...
Paint-Over-Rust
Wirebrush and/or sandpaper will get most of it.
To be thorough, I alway recommend a Phosphoric Acid solution.
POR has Metal Ready, but you can find others at retail outplets.
I liek Must for Rust (used to be at Home Depot) and Naval Jelly ...everywhere.
These solutions will dissolve the rust and treat the surface
for better adhesion.
... I added a link to my brake caliper post above ...
Safety Car
Joined: Aug 2001
Posts: 4,883
Likes: 11
From: North Easton Mass
Originally Posted by Nvts
it appears that those are for once the part is cleaned, yes? Other then total pulling apart and sandblasting, whats the best way to remove rust while it's all together still?
Rick B.
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Drifting
Joined: Aug 2004
Posts: 1,763
Likes: 0
From: Fayetteville NC
Originally Posted by big_G
3 things at play here....The front wheels spray water onto the frame behind them, and the heat coming from the engine tends to dry the front portion of the frame, and lastly, the engine oil leaks prevent rust!.
