Petrol burn marks on engine casing

[Deleted account rno]

This is hardly technical but is driving me nuts. When I first got my beloved GS a few motnths ago, I went up to Glenshee and filled her with petrol. The bike was sitting on a camber in the forecourt and when I overfilled slightly, the excess petrol spilled onto the hot engine casing...sizzled a bit and then left a nasty brown mark which totally refuses to shift. I've tried everything I can think of but it won't shift. Anyone got any suggestions?... (apart from being more careful in future).

 

[Spout]

Ronno,

doing a quick "search" (see above) on 'petrol stains' brought this up:

found simply doing a search

 

[The Mechanic]

Yep....

BUY SOMETHING ELSE, BETTER THOUGHT OUT AND BUILT BETTER!

 

[rocks]

Halfords..

Halfords do a cleaner.. cant remember the name. But williams BMW use it ( one of the mechanics removed tar spots from front of my bike with it and showed me)..

It works and should shift most of the stain.. I have some in the garage will see if can track down the name of it. Its there home brand.

 

[(RIP) Kaister]

But williams BMW use it ??

must be the 3rd best product out there then ??

I haven't seen anything that will get it off because its the actual paint that absorbs the fuel

( mclaren cleaner doesn't do it either )

 

[BiG DoM]

Basically the clear-coat is stained... depending on how deep the stain has penetrated one can either polish it out or not (tar removal solvent is unlikely to help). Try various polishes starting with the 'softest' (toothpaste, seriously) and then moving up to burnishing compounds... add elbow grease!

 

[(RIP) Kaister]

Its NOT clear coat - its engine paint

clear coat is a laquer applied over a base colour.

you wouldn't do that process on a production line...

 

[Deleted account rno]

Thanks Mechanic,

I almost pissed myself laughing...bet you've got lots of mates.

 

[Finbarr]

If you can't clean the stain - how about staining the rest of the unstained area so it all matches? It won't stand out then.

 

[Lumpsucker]

Nasty brown stains.

Had the same problem after leak from quick release conectors.
80p bottle of acetone solvent from local chemist got rid of 90% of staining.
Hope this helps.........

 

[Muppet]

If that doesn't work try 'gunwash'

It's a paint cleaner used in most sprayshops - you can buy 5 litres of it for about a tenner from any decent paintshop stockist (not B&Q ), try Brown Borthers.

Had similar stains on my 1100, got rid of most but not all of them, but it's very good at removing tar spots and any other grease/oil stains. BUT!!! Be careful with it, it's apaint solvent so don't leave it on there too long, wipe the stain then wash with water.