Making an air intake heater for Yanmar 1GM10

[ianwoods]

Hello, Has anyone actually made a preheater for the airintake of a Yanmar 1GM10 to aid cold weather starting?
I was thinking of using a flanged length of steel tube with the air filter bolted on one end and the other connected to the block at the inlet (original position of the air filter unit). Fitting a glow plug in the side of the tube so as to heat air for a few seconds prior to swinging the engine.
I am suorised this engine doesnt have a preheater. Any comments?

 

[uforea]

Yes, a pal of mine has just done this on a Bukk fitted to his Konsort. He used two heaterplugs in the inlet manifold stub wired to a relay etc and the engine starts much quicker from cold and less smoke.

Ted

 

[Spuddy]

Well, I did use a 12v hair dryer down the spout of my 1GM which worked a treat. It blew up cos of something else. Remember a post a while ago which mentioned similar arrangement to what you describe; sounds good and I'd be v interested in how you sort it out. Post a pic and some dims - I'm sure others would find it useful as well.

 

[stravaig03]

I hope i,m not being silly here but have you tried starting with full throttle. I don't mean throttle open a good bit i mean fully open. Worked a treat for my 3gm.
With the morse control i had to turn throttle in the reverse direction as the 'gear button' stopped the throttle at about 1800 rev equivalent when using forward direction. Just reduce throttle as soon as it fires,

 

[ayearsley]

Mid 1980's I bought the Bukh air preheater for my Konsort's Bukh 20 to improve cold starting. May still be available.

 

[Gunfleet]

A Yanmar 1GM10 doesn't need a preheater. It should start on the first half turn if it has enough compression. It will run on virtually anything and start easily in almost all circumstances if it has enough compression. If it's hard to start the first thing I would suspect is compression, whether the engine is old or new. Just a little bit of corrosion caused by condensation around the valve seats will take away enough compression to make it a difficult starter.