Carbon build up in Yanmar 1gm10

[ben_m]

Well that was easy. It came out easily, courtesy of a softwood punch and a light tap from a hammer. That's a relief. Now I've taken the thermostat cover off and the thermostat seems to be stuck in there. Any hints for removing that? I presumably don't want to lever it out or it'll not work again!

Thanks for all the advice

 

[steve28]

its only going to be held by the rubber grommetand salt , it should come out once loosened maybe a wooden dowel tapped around the edge.



steve

 

[ben_m]

Well I bit the bullet and bought a new head and elbow. It's now on and starts and runs like a dream! Thanks, everyone for your help! We got more speed yesterday than ever before and no gubnk or smoke from exhaust.

One thing, though - after starting, the revs slow for about 10-20 seconds, and throttle has no effect, until it builds up speed again - after that it's fine. Any ideas what that might be? could it be a fuel problem or is it just the alternator loading up?

 

[Ubergeekian]

One thing, though - after starting, the revs slow for about 10-20 seconds, and throttle has no effect, until it builds up speed again - after that it's fine. Any ideas what that might be? could it be a fuel problem or is it just the alternator loading up?

Temporary rich running, I expect, as it has to burn off the fuel which was squirted in before it started. Throttling back may help.

 

[captainscott]

carbon build up

Try BG244 in your diesel tank this stuff removes hard carbon build up.
I have used it and it works a treat. www.bgproducts.co.uk

 

[ben_m]

Grand, that's worth a try. Thanks again for all your advice.