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By enfield_trials
#8799
Hi Guys

I have bit neglected clipper 350 crankcases. ( engine# C305 ) which i want to use :(

how i can clean this . i dip it petrol for one night . still not much improvement.

any ideas ?



Regards
ET


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By enfield_trials
#79000
Thanks Valsp for your feedback.

the CAM push arm ( not sure it correct technical name for it ) are stuck . not moving as well

there is tiny bit peeled off on one arms looks like. i hope that is fine as well
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By Chris Tindal
#79001
I use WD40 to get old oil off. To get them really clean the dishwasher, works a treat! They do go a little dull grey but a light polish with autosol brings them up again. Vapour blasting is the best and will make them look brand new.
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By PeteF
#79002
Yep, vapour blasting. If the cam followers? Are stuck, keep applying penetrating oil and gentle persuasion.
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By PeteF
#79006
Yes, soda blasting is a good do-it-yourself technique as you just need a decent air compressor. You can knock up the gun yourself (loads of info on Youtube)
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By stinkwheel
#79008
I'll echo the dishwasher advice, brings things up lovely.



An old trick for seized engines (and I mean totally seized to the point they won't come apart) was to put them in a bucket of diesel for a week.



The corroded steel parts would come up nicely if they were soaked in white vinegar (often sold as non-brewed condiment) bout they would need to be removed from the aluminium first.



I find a 50:50 mix of paraffin and ATF makes a very good penetrating oil for stuck parts.
By enfield_trials
#79013
Thanks Chris Tindal, PeterF, mauri, stinkwheel for your idea/suggestion


I have tried dish washing liquid and autosol it did some clean up. i am considering other brilliant ideas as well
i want to clean as much i do with my bare hands, I dont have any shed just tent in my back yard at the moment. ;-)

Regards
ET

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