Sporti : Remove Paint from Engine Block |
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Guztave
Senior Member Joined: 30 Nov 2014 Location: Exeter Status: Offline Points: 425 |
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Posted: 11 Nov 2019 at 12:27 |
The previous owner painted the engine block with silver paint that over the past couple of years is starting to come off in places and is starting to make the bike look shabby.
I am not sure what my options are, I assume that taking the engine out and getting it vapour blasting would be quite involved and expensive? As an alternative winter project, could I remove the paint with a Dremel tool? If yes, what type of brush and rubbing paste would be best for the job? Or is this not a good thing to do? As always, all help and suggestions most gratefully received.
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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Paint stripper and a brush? Very time consuming, but possible. The best result by far is bead blasting, but that means stripping the engine to get the bare castings.
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Brian.
Better 5 minutes late in this world than years early in the next. |
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Guztave
Senior Member Joined: 30 Nov 2014 Location: Exeter Status: Offline Points: 425 |
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Would paint stripper be OK on any rubber parts and seals?
What do you think is the likely cost to have the engine blasted? Anybody you can recommend?
Thank you |
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johnno
Senior Member Joined: 19 Jul 2014 Location: loughborough uk Status: Offline Points: 5582 |
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I rode my sport Corsa through last winter and most of the engine paint flaked off lol . Paint stripper is hard work , I tried lots of different paint strippers on me 650 and just gave up . Hopefully someone as an answer and I think it will be take the engine out . Look forward to the answers
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1100 sport corsa , Yam R1, guzzi 650tt rider
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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Ray, exsmokingbiker on this forum will clean your casings. Does an excellent job. Can't give a price guide though, sorry.
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Brian.
Better 5 minutes late in this world than years early in the next. |
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Guztave
Senior Member Joined: 30 Nov 2014 Location: Exeter Status: Offline Points: 425 |
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Thanks Johnno and Brian,
Will contact Ray.
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Glawster
Senior Member Joined: 14 Sep 2015 Location: Cheltenham Status: Offline Points: 896 |
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If it were mine the first thing I'd try is to find someone with a proper industrial steam cleaner (not a feeble Karcher diy job). See how much of the paint can be removed this way, then go over it with Nitromors and go back and steam clean again.
If that fails you'd really need to take the engine out and get it soda blasted. I've no experience of this. To do a proper job means vapour blasting, but that means completely stripping the engine and getting the component parts blasted. This is the kind of finish that Ray will give you if you go down this route. |
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1955 Guzzi Falcone Sport 2021 BMW R1250R 1998 Cagiva Gran Canyon |
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nab301
Senior Member Joined: 29 Oct 2017 Location: Dublin Ireland Status: Offline Points: 443 |
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Some diy methods of soda blasting here but I guess you'd have to confirm by trial and error if paint removal is possible . |
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Nigel
Keep smiling , it makes people wonder what you've been up to! '19 CB125F, '18 DL250 SUZUKI V STROM,'99 Bmw R1100S, '03Bullet 65 500, '93 MZ301 Saxon fun (offroad) |
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Guztave
Senior Member Joined: 30 Nov 2014 Location: Exeter Status: Offline Points: 425 |
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Thanks for this information, I will look in to this. Is Nitromors safe on rubber and plastic parts?
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Barry
Senior Member Joined: 02 Mar 2015 Location: Oxford Status: Offline Points: 2811 |
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If you think about what the product is formulated to do (with paint), you'd have to consider that avoiding anything other than painted metal might be a good plan, right? As with other products of a similar nature Nitromors isn't quite the beast it used to be, having been 'de-clawed' a few years ago by legislation which required the removal of some of the chemicals which "caused cancer" and other forms of nasty death. It's still something to be respectful of and careful with, though. |
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drøn
Senior Member Joined: 28 Jun 2018 Location: Copenhagen Status: Offline Points: 240 |
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I'll just be following this topic as my old man just bought a V65 which the PO had painted the engine black. It was painted in situ with minimal masking. Carbs, manifolds, petcocks, even the spark plug boots were sprayed over!
As for nitromors, I've heard it will work better if warmed gently and packed in cling film when left to work. |
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Ian T
Senior Member Joined: 24 Oct 2019 Location: East Yorkshire Status: Offline Points: 679 |
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Don't know if this helps but I had a mare of a time trying to strip the paint off a BMW K75s tank it was on like enamel. I tried everything but eventually the only thing that shifted it was Screwfix No Nonsense paint stripper and as said above I wrapped the thing in cling film to let it cook away. Was very effective and also much cheaper than other strippers.
Never found Nitromours any good anymore after the health police got to it. Try the above it worked for me where nothing else did, the cling film was needed though. Cheers Ian
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Guztave
Senior Member Joined: 30 Nov 2014 Location: Exeter Status: Offline Points: 425 |
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Hi Ian,
Thanks for the suggestion, will this product damage any rubbers parts, washers, hoses etc if the engine remains in situ? Cheers
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Ian T
Senior Member Joined: 24 Oct 2019 Location: East Yorkshire Status: Offline Points: 679 |
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Hard to say, I suppose you could mask off the rubber bits and hoses, or pull them off and plug the holes.
I've never been a fan of "in-situ" cleaning or painting for that matter. I always strip the bike I'm doing right down, it may seem a pain to start with but the end product will be much better and it gives you access to bits you may have missed, or will miss if it is still together. Much more satisfying I think when the job is finally over. Good luck Ian
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drøn
Senior Member Joined: 28 Jun 2018 Location: Copenhagen Status: Offline Points: 240 |
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I'd say it's hardly the worst idea to remove tank, carbs and inlets anyway before you attempt to strip the paint.
They are not the hardest parts to remove/refit and it'll e much easier to get to the harder to reach spots too. Maybe even air filter. |
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