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[me3]

Hi all,

I have this motor in the picture - its water cooling jacket is blocked, not sure by what though Does anyone know what they are like inside? Do they have channels in that work along the motor, also any idea how I could get it off?
Thanks Reece

[U-33]

Pop down to your local garage  and give it a blast through with an air line, that'll sort it out.


Rich

[Stavros]

Try squirting some Cilit Bang down it they advertise that is clears limescale so maybee it will clear your blockage or even Bicarb of soda
 
Dave

[derekwarner]

Reece...tend to agree with Stavros....look at the whitish scale build up on the inlet & discharge hose ferrules

1. support the motor with the shaft vertically down.....insert a piece of clear silicone tubing to the lower hose ferrule...fill up with CLR [anti scale...for calcium. lime + rust] until it overflows from the top ferrule 
2. let it sit there for 24 hours.......flush out & repeat if necessary
3. if this does resolve the issue....maybe consider a 1/2 litre flush of fresh water by the pool side after each run just by a plastic squeegee bottle connected to the suction side .....

Derek

[w3bby]

Blow it through with 5-56 orWD 40 at the end of the day to clear the water out. I run on brackish water and it clears all the salt and prevents corrosion..

[me3]

Thanks for the advice everyone. I managed to get to the jacket off. The holes in the jacket were completely blocked. It has spent all day with limescale stuff in. Anyway all gone now. I do always flush my models, however this is from a boat I found

[TheLongBuild]

How did the jacket come off ?, Could be useful to know.

[me3]

It just slides off with a bit of force. A member told me on a PM, it's only sealed with an 'o' ring at each end! Excuse the image quality 
 

[derekwarner]

OK Reece

1. you now need to re preserve both the OD of the motor casing and the ID if the cooling jacket
2. I assume the motor is a steel cage & and the cooling jacket an aluminium enclosure

Lets ask Stavros for a few comments here on the best way to preserve the different metals & still maintain a case dimension that will be OK for the o-ring sealing diameter 

Derek
 

[me3]

Yes, thanks, that is correct I believe, though the motor case could be aluminium, I think! I was just going to spray them with black gloss or something to stop any extra corrosion.

Reece