So how the heck do YOU clean your engine in situ?

I'm not a chemist but as far as I'm aware water doesn't neutralise hydrofluoric acid, or any other acid for that matter. Water simply dilutes it. If you want to neutralise it (render it chemically inert) then you need to add an alkali compound, like NaOH, Baking soda, or some other base material.

Cam
 
Yogi, you need to stick your nose in the air exit path from the computer fan. The digital smell technology is pretty old, actually uses 16 bit code, so it takes some time for the digitised smell to get transmitted halfway around the world. Just stick your nose next to the fan for a few minutes, don't worry, it'll get there.

I forgot, it does work better with older Intel chipset computers. They used to use a separate smell chip. Now that everybody's integrated all the little chips into the processor the odour buffer is no longer dedicated and can get usurped by higher priority tasks. Make sure to turn off all other applications while you're sniffing the fan.

Ken
 
So what your saying Cam is after you've cleaned the cases with Hydrofluoric acid you should then have the cases soda blasted ???

Speaking of soda blasting, I called 3 soda blasting operators in Perth and got 3 prices to do a complete motor. $150, $300, $350 !!!
I brought 1kg of Bicarb from the super market to fuck around with using a length of 1/4" and 3/8" clear hose and my air nozzel poked through the plastic about 25mm from the end, and the other end in the box of bicarb. It works ok but somehow you need to sort out a feed system, and have a truck load of bicarb handy. That's when I decided to call a couple of operators to get a price. I wouldn't pay $300 to get it done but 150 sounds ok so may get it done on my next trip to Perth, unless I can find an easier way to do it at home and source 25kgs of bicarb.
This was the result of fucking around on the cam cover of an old set of 750 head/barrels sitting on the shelf collecting dust for the last 30 years. The cam cover came up a treat, better in some places where I paid more attension than other areas where I decided I'd need to improve the feed system and lost interest. That cam cover used pretty much 1kg to get to that stage.
 

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Rob,

I assume that you don't have a blasting cabinet, so try using a sturdy cardboard box or wooden crate to catch most of the blasting media. 1Kg will go a long way if you can cycle it through.

HTH
Gerald
 
G'day Gerald, nope no blast cabinet. Did think of using a large cardboard box, didn't have one and besides I still need to sort out a feed system.
Probably go with the $150 option. As my crank is on its way to Red I've got time up my sleeve and I need to do a Perth run pretty soon.
 
got my bio washing powder ( yes you can still get it ) and washing up liquid from the pound shop this lunch time, will try and post some before and after pics if I get chance to do some this weekend (clock) (drink)
 
John B said:
got my bio washing powder ( yes you can still get it ) and washing up liquid from the pound shop this lunch time, will try and post some before and after pics if I get chance to do some this weekend (clock) (drink)
Click to expand...

Uh oh! If his crankcases dissolve I'm gonna be really popular!
 
take more than a bit of soap to dissolve a Laverda :D

more chance with the nasty stuff Scorch was on about
 
So here we go - hard to see in the dark here and hard to photo but it doesn't dissolve the cases  :D

shinyengine.jpg
 
That's an impressive result with just bio washing powder and washing up liquid. And probably a bit of elbow grease too.
I remember seeing that combination mentioned in LVV some 25 years ago.
There isn't much point in going the expensive way when you can get a result like this from a pound shop. 8)
Cheers
DoC!
 
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