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Large MPVs -- Ford Galaxy / VW Sharan / SEAT Alhambra: => Ford Galaxy / VW Sharan / SEAT Alhambra => Topic started by: MrBen on February 25, 2020, 06:30:33 PM

Title: Anti corrosion measures...ideas?
Post by: MrBen on February 25, 2020, 06:30:33 PM
Hello all. Looking for suggestions for slowing corrosion to underneath, as I don't have a garage. Best suggestion yet I reckon is underseal which has been thinned with white spirit and heated a bit, and underside obviously washed first, preferably jet washed...
Title: Re: Anti corrosion measures...ideas?
Post by: brianh on February 25, 2020, 08:51:58 PM
The vunerable bits are the outriggers - flushing them out on a regular basis with the hosepipe may help there, if you can get underseal inside them that should help as long as you leave some way for any water to get out if it gets in there again.
Title: Re: Anti corrosion measures...ideas?
Post by: MrBen on February 26, 2020, 12:13:11 AM
Thanks for tip brian. I notice also with all galaxies etc that iv had, the rear suspension/trailing arms looks well manky....
Title: Re: Anti corrosion measures...ideas?
Post by: brianh on February 26, 2020, 08:44:12 PM
Mine does, but remember they are much thicker metal than other bits like the outriggers. And (I think!) are replaceable bits without welding being required, unlike the outriggers.
Title: Re: Anti corrosion measures...ideas?
Post by: johnnyroper on February 26, 2020, 11:25:23 PM
Trailing arms etc always look manky but as said far thicker steel so itís typically only surface rust.
Title: Re: Anti corrosion measures...ideas?
Post by: MrBen on February 26, 2020, 11:38:54 PM
Thanks guys!
Title: Re: Anti corrosion measures...ideas?
Post by: mike wilson on March 03, 2020, 12:35:52 PM
You may find that a local off-road specialist will do an inclusive service for you.  Mine stripped the underneath of covers and shields, powerwashed, wire brushed and passivated (where necessary) undersealed and put everything back for £250.
Title: Re: Anti corrosion measures...ideas?
Post by: MrBen on March 03, 2020, 02:43:34 PM
Ok thanks 4 that.
Title: Re: Anti corrosion measures...ideas?
Post by: SirDavidAlhambra on June 13, 2020, 09:13:56 AM
Have you tried smearing grease over the wheel arches, thatís what I do
Title: Re: Anti corrosion measures...ideas?
Post by: MrBen on June 13, 2020, 10:08:46 AM
I didn't fancy grease, as bits can stick to it, although that would work. In the end I pressure washed underneath, then some SBR, then underseal. Looks loads better than what it did. Did find a hole on outrigger which il keep an eye on. Thanks for reply.
Title: Re: Anti corrosion measures...ideas?
Post by: rfw2 on June 14, 2020, 01:59:17 PM
Mine just failed the MOT on a rusty outrigger and front shock.
Had a feeling it would.
Getting my local garage guy to do it as my back is playing up and crawling around under thing
with the MIG doesn't appeal at all right now.
When I can I'll squirt some used engine oil and in and around it, been doing this for years
on various cars, vans, motor bikes etc and it works.

Some have tutted and said that old oil is somewhat acidic and it may be,  but I've never seen anything to prove
it has any kind of negative effect to prohibit its use
I flushed the swinging arm from my old bike with used oil after welding it up in 2005 and it's still
in use today.
 


 
Title: Re: Anti corrosion measures...ideas?
Post by: MrBen on June 14, 2020, 03:30:49 PM
Ah right. Yes sounds feasible. I'm going to try to give it more regular washes underneath, as I was quite impressed with my mates pressure washer. Your front shock could be tricky. My shocks of other galaxy I had, I had to cut top plates off under bonnet with not much room to get an angle grinder in, plus the pinch bolt around the shock sheared off, so had to drill it out. Real pain.
Title: Re: Anti corrosion measures...ideas?
Post by: SirDavidAlhambra on June 14, 2020, 04:10:37 PM
Dunking stuff in engine oil always makes it last for ages, whether weíre talking metal bits in cars, fence posts, garden gates or tools.

I once had a car that was leaking oil from the engine and the mechanic said to just leave it like that, he said if anything itís good to keep an engine coated in oil because it will keep it smooth and well running for longer hehe
Title: Re: Anti corrosion measures...ideas?
Post by: rfw2 on June 14, 2020, 07:27:43 PM
It can be messy of course, but I used a pump up garden sprayer to do my old Transit
(Bloody rot boxes they are too  :D)
once or twice a year and my 40 year old Honda gets it too.