Rusty sediment in engine block

[Andy]

Im in the process of stipdown/clean/re-new/rebuilding my 1300 sport engine,the engine has had a steel waterpipe that runs around the back of the engine which has corroded badly.This has resulted in a rusty sediment left in the block around the bores and waterways as per pic here......

http://i289.photobucket.com/albums/ll211/andyspics_album/DSC00174.jpg

So i was wondering what the best way to clean this out would be.What chemicals??
Anyone else had to deal with similar?

[AlexW]

Most of the hard stuff isnt a issue. For the loose bits, airline down it all if you have access to one ofc

[Royston]

Looks fairly normal (mind I look at engines that are up to 70yrs old+), maybe it wasn't run with antifreeze weak /old mix.

Could knock all the core plugs out (as you've done) and get a cold pressure wash in where you can to dislodge the sediment.

[Andy]

thanks for idea alex.
royston,i did think of that but didnt want to get bores wet/rusty
engine was last run for 10mins in 2008,before that was 2000!

[AlexW]

Nothing wrong with getting the bores wet, just dry it out after, and do a rub round with some oil to stop it from rusting until you fire up the engine.

[Royston]

thanks for idea alex.
royston,i did think of that but didnt want to get bores wet/rusty

Just make sure you dry them down properly and protect the surfaces, with oil, could used WD40 shorterm

I assume you will be thoroughly steam cleaning it before rebuilding it anyway (I always do, or in the engine shop hot wash) still need to be dried off well/protected

[Andy]

thanks,rep added to both

[Andy]

dont have access to steam cleaner or hotwash so it will be a good jizer instead

[stt]

http://www.pngclub.com/forum/showthread.php?t=149320

[Edd]

I started stripping and cleaning my spare 1300 bottom end over the last few weeks

I have similar crap like yours, **** loads of Cillit Bang sprayed in there then blast it out with a hose then dry it off, coat in wd40 done the trick for me.

I also have a mini steamer that has small nozzles attachments that I will also use, got it from Toolstation/machine mart and was about £25

[Royston]

If I'm getting some machining work done I get the shop to clean it in the hot wash, and I also steam clean it prior to building, obviously thoroughly dry ing off, first drain the exces wate off, then with an air line to chase all water out of the galleries, bolt holes, etc.

Once dry protect bores/bearing surfaces with appropriate oils, depending on how long it will stand.

Edd, Rory will be rining you soon;)

[Andy]

cheers edd,will give that a go mate
thanks again royston