sand blasting the engine

[dragan]

Hi mates.is it smart idea to sand blast the engine from my b12 mk1.I paint it 4 years ago and I put really thick lear of color and now I like to put some new color and take out the old color.
Dragan.

[captain chaos]

only if you can make 100% sure that NO sand at all will get inside the engine.

So I guess it's not a good idea.

[dragan]

So how can I take the old paint of??

[andicog]

Not 100% on this but I've heard that soda blasting is best on a complete engine, the soda being much less harmful should it get into the engine.

[dragan]

What about paint stripper?

[wsn03]

I usually just you coarse grade wet and dry - 240 and 400. With a good enough key you're good to spray.
That said I always spray with Hamerite Satin - amazing finish and stays good indefinitely, and heat resistant - far better than any engine paint I've ever used, however - CAUTION - it is very very thick, takes a very long time to cure, apply sparingly, with about 30 mins between each very light coat........ practice on something first.

Forget a vertical surface, the whole thing will run, engine needs to be on a mattress done one side at a time, will take up to 4 weeks (as each side needs a week to set properly. Well that's my experience anyway.

[neilw]

Beware of sand blasting, my blast cabinet is in a shed 10 feet away from m garage, I blasted some parts in the sealed cabinet but forgot to shut the side door of the garage and ended up with dust and sand in a partially built gsx 750 motor sitting in the garage. The grit gets everywhere and I would doubt you can fully seal a motor.
In the past I have sealed engines and used paint stripper followed by a high pressure jet wash to clear off old paint.

[kokolis]

I had a cb750 four sand blasted 25 years ago, I had spare headers cut off and soldered and tire tubes for the intakes with hose clamps, no problem with it, can easily be done but take your time to do it right

[terminator efe]

Now here,s a topic I know about sand blasting an engine!! IT must be done professionaly Joe soap doing machinery and tractors is NOT the man to ask!! Its a tricky job!!!! blasting the engine it is easy will take an hour or so but keeping the glass out is the trick . most companies have cabinets as I have but they really want to only see the engine stripped to fit the box and there dame heavy!! So be ware pick a good man whose done it before and its very possible its takes me a few hours to get ready plugging in and out manifolds draining oil ( leaks are a no no the glass will find its way in and the oil leak will stain the alloy after u have cleaned) plugging all holes breeders pipes oil cooler etc....I personally remove rocket cover sump casings alternator starter then clean and dry all open areas and replace casings with casket sealer, alternater and starter left of and holes plugged, at this stage u can start blasting not every man will do this effort and u can do this sure self and get it ready , and after its done all casings can be removed and internals checked just make sure the guy has light grade material(bead, shot or light grade glass, ( sand is old skool ) as for painting the u can do after blasting done and casings of and all clean the one coat etch primer two coats primer and two coats 2Pk finish I would never recommend anything else..

[dragan]

I think I will go with paint stripper I think it is much safer and I dont like to risk with the engine.
Dragan.

[swirl]

Soda blasting alot less harmfull and same effect, i've a frame engine and exhaust being done in the morning

[andicog]

I've just had my outer covers powder coated by a very well respected powder coater, they failed to plug up the oil ways in the cam cover, grit everywhere, pressure washed it over and over, as I'm blowing it dry with the air line a huge lump of the coating comes off . . . . it then took them 2 further attempts to get it right. been using them for years, never again .
I've used etch primer, normal car basecoat and 2 K lacquer on my engine, its been great for years now.



 

[fatblokeonbandit]

I use degreaser and wire brush then pj1 and heat resistant silver..

takes a good few goes to get it really clean first, but turned out not tooo bad

[dragan]

Nov 27, 2014 13:27:36 GMT fatblokeonbandit said:

I use degreaser and wire brush then pj1 and heat resistant silver..

takes a good few goes to get it really clean first, but turned out not tooo bad

Hi mate can you give me the engine holder measures.I will like to make one for my engine for easier work, cleaning and painting

[fatblokeonbandit]

www.ebay.co.uk/itm/suzuki-gsxr-slingshot-bandit-engine-work-stand-/111521321165?pt=UK_Motorcycle_Parts_13&hash=item19f73050cd

2nd best tool ive bought