Rusty underside!
Author
Discussion

LPH

Original Poster:

428 posts

203 months

Monday 2nd March 2020
quotequote all
So this is what the underside of a 20k mile (but I guess it is 13 years old) quality british motor looks like.....

Had it 12 months and this wasn;t pointed out at the inital service when I bough the car. Can't see hw it's happened in just 12 months and 1800 miles.








Thanks to Aston Engineering in Derby who did the service and this (along with a brake fluid and gearbox oil change), it's now looking a lot better and hopefully will be better protected.

They have some glorious machinery in their workshops










Collect it tomorrow.

Had a very reasonable quote to sort out the stonechips and door corrosion (TADTS) too. They do £250k restos on old Astons and the paint shop looks to be top notch!

Edited by LPH on Monday 2nd March 17:30

paulrog1

1,235 posts

171 months

Monday 2nd March 2020
quotequote all
This is the rear subframe with metal rust, all of our cars will suffer the same issue.

I guess they just painted the subframe in situ??

A proper repair is to remove the subframe from the car and have it treated and powdercoated.

Im planning on doing mine later this year.


ARAF

20,759 posts

253 months

Monday 2nd March 2020
quotequote all
It's only surface - at the moment. I've seen that happen to many cars in under a year so don't think it is substandard.

Your mechanic has made it look a lot more presentable. smile

8Tech

2,212 posts

228 months

Monday 2nd March 2020
quotequote all
A good effort has gone into masking and spraying the subframe in situ but unfortunately, the areas you cannot see, and therefore spray will still be corroded, and painting over the rust will simply just hide it until next year.

The only viable, proper solution is remove, powdercoat and refit. That way all the corrosion will be removed through blasting and the powder will seal the metal surface properly.

Maybe reassess the success next year again?

JonnyCJ

1,309 posts

84 months

Monday 2nd March 2020
quotequote all
Here’s one I prepared earlier...





V8 Vantage 2009

Edited by JonnyCJ on Monday 2nd March 20:20

milu

2,513 posts

296 months

Monday 2nd March 2020
quotequote all
Mines currently up in the air.
However I must says it's not bad at all. Nothing like the one pictured above. In fact most bits can be rubbed of with your finger. I'm going to treat it regardless
Mines done 50k but 35 of those were done early on. The last six years only a couple of K annually.

I suppose it's all about what weather they've been used in.

john ryan

542 posts

162 months

Monday 2nd March 2020
quotequote all
Powder coating without pre-treatment of the bare metal will likely make things worse over time as moisture creeps rapidly and unseen under the coat from inevitable breaks in the surface. Ask any TVR owner. Worse still is that the coat holds moisture against the steel. Personally I would use an appropriate paint and quality wax spray.

LPH

Original Poster:

428 posts

203 months

Monday 2nd March 2020
quotequote all
I was surprised how bad it was but I know it's an known issue.

They called me to let me know and said it was just surface rust. Removing it and refurbishing it isn't an option at the moment so they cleaned off the rust and sprayed with wax. This hasn't been painted and I wouldn't have wanted it to be when it was still on the car. To be honest I don't think they would have suggested doing it anyway, their standard of work looks amazing and I'm sure they don't do bodge jobs!

It should keep the rust a bay for a while until I get the time to get it taken off and sorted properly.

The price they charged to do this was so reasonable it was almost criminal tbh, well compared to normal 'Aston prices' it was!

If I do take it off I'd probably have it blasted and then use some POR15 to paint it. Then I'd use some Dynax s50 wax in the cavities.



Edited by LPH on Monday 2nd March 21:12

Emilio Largo

768 posts

141 months

Monday 2nd March 2020
quotequote all
LPH said:
... so they cleaned off the rust and sprayed with wax. This hasn't been painted and I wouldn't have wanted it to be when it was still on the car.
Wait a minute: Not masked and sprayed as 8Tech assumed? Aston-ishing result then for a quick solution. I really wonder what they used resp. how they did it.

LPH

Original Poster:

428 posts

203 months

Tuesday 3rd March 2020
quotequote all
I know they used a Dinitrol clear wax applied with a schultz gun and airline as far as I know.

The aim was to clean and protect it in the short term and it will be re-visiited at some time in the future.

andyvvc

267 posts

173 months

Wednesday 4th March 2020
quotequote all
My V8 is booked in next week smile

Cheers for the heads-up! I didn't realise Aston Engineering offered that service. Not too pricey either which has stunned me lol

LPH

Original Poster:

428 posts

203 months

Wednesday 4th March 2020
quotequote all
Yep - confusingly reasonable price!

paulrog1

1,235 posts

171 months

Wednesday 4th March 2020
quotequote all
Just out of interest how much was the quote??

andyvvc

267 posts

173 months

Wednesday 4th March 2020
quotequote all
£130 - but that's assuming im getting that done as part of a service (which I am not). So I expect it'll be a bit more than this - probably another 30mins labour. Speaking with AE i think they will clean and treat all visible metal surfaces under the rear of the car. I guess while they are there I'll get them to check the front end too . . . and maybe fit some 200 cell cats smile


ds666

3,161 posts

209 months

Wednesday 4th March 2020
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Has anyone had this done anywhere else ? Nearest to me are AM Grange , Fisher Perf and BR

cornershop

2,150 posts

226 months

Thursday 5th March 2020
quotequote all
ds666 said:
Has anyone had this done anywhere else ? Nearest to me are AM Grange , Fisher Perf and BR
I had the ACF50 treatment done by HWM - 180 all in.

Some (small) pics here:

https://www.pistonheads.com/gassing/topic.asp?h=0&...

Its not as long lasting as something like Dinitrol, but with an estimated 24 month lifespan I’ll be more mindful of getting the trays off and inspecting the area (rather than assuming its still fine).

180 every 2-3 years i can manage, assuming it works

Olas

911 posts

87 months

Thursday 5th March 2020
quotequote all
Wire brush and waxoyl will have that sorted in one saturday.

Annual reapplications will keep it good for as long as you want to drive it.

paulrog1

1,235 posts

171 months

Thursday 5th March 2020
quotequote all
Aren't you concerned about the areas of the frame which can't been seen and treated??

Surely the proper way to sort this is to remove the frame, treat, paint then refit.

Thats what I'm doing later on in the year.

andyvvc

267 posts

173 months

Thursday 5th March 2020
quotequote all
I'll have a chat with AE when i drop the car off and see what they recommend. My car has 83k miles on it so might be worse then others smile

An initial treatment while the frame is in-situ I am happy with. If issues are still apparent next year then it might need a full removal/treatment at some point.

Olas

911 posts

87 months

Thursday 5th March 2020
quotequote all
paulrog1 said:
Aren't you concerned about the areas of the frame which can't been seen and treated??

Surely the proper way to sort this is to remove the frame, treat, paint then refit.

Thats what I'm doing later on in the year.
The areas that cannot be seen or treated are the reaosn we invented the schutz gun.