SOHC.co.uk Forums > CB500/550

Engine cleaning CB500 Four 1972

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K2-K6:
"My plan is to remove the engine and strip it fully. Is vapour blasting recommended?"

Before stripping the motor and if you have availability to steam clean (not pressure blasting) plug any holes and steam clean it whole. It's generally very gentle to all of the materials, lets you have a really good view of true condition and what you then need to do. But most of all it cleans all the crap, grit etc from it so that it doesn't mix with internal components when you take it apart.

HGV inspection prep places often run a steam cleaner, you may be able to come to a cash arrangement to do it for you.

Nurse Julie:
On a 500/550 there is a oil channel that runs in the head. It is blocked off with two alloy plugs on each side of the head, if these plugs are not removed and the channel cleaned out then, bye, bye cam  :o

Sesman:
Yes, fully agree. Probing the channels isn’t a guarantee of debris clearance.

Sesman:
I plugged the channels with wood pegs and wax before blasting. Additionally I only blasted the exterior surfaces, not the interior ones. Stay way from any bearing surfaces what ever cleaning method you elect to use. Except for hot soapy water of course. Avoid the dishwasher.

Laverdaroo:
All bling and Simoniz  :'( :'( :'(

Wish I could afford middle class ceracote.

I vapour blasted, dried in the airing cupboard for 4 days then blasted our with air. Then washed with a high pressure washer and dried out again. Used a variety of brushes (eBay £4.99) and air blasted again. I also cleaned every thread hole and retapped. One last wash, airing cupboard, brush and pipe cleaner job, a wash down with acetone and paint with that inferior, working class,  bling Simoniz silver ;D ;D ;D



 ;D My Middle class ceracote worked out cheaper and less faff than the working class option. I have a man that does stuff  ;D and only cost me £60 and the results are fab fpr me. Never thought of steaming it first, that's a great idea  and mqkes perfect sense, I'll do that with the 550 before anything happens with spanners....top tip.

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