Injector removal

normde2001 · Jun 22, 2005

You can order the washers from any Yanmar parts dealer, called conbustion chamber washer or packing, about $1 each.

1danny · Jun 22, 2005

The YM1700 has 2 copper washers & 1 insulator washer, you have to remove the front pre-combustion to replace 1 of the copper washers.

Danny

1danny · Jun 22, 2005

Try blowing around the outside of the injector with a high pressure air hose, that's how we get them to loosen up.

Danny

fig · Jun 23, 2005

Danny,

I will have to confirm, but I think it is leaking below the injector right were it goes into the head. I looked at Hoye's web site at the exploded breakdown and I do not see anything below it. Am I missing something here?

I need to quit being a d*** money miser and buy a repair manual! Mine is a recon unit (I'm sure from Viet) but luckily I have had no problems since I purchased. This is not effecting the way it runs; I'm just tired of the desiel stain on the motor and it annoys me just knowing it is leaking. I tend to be a perfectionist.

Fig

pruntyc · Jun 23, 2005

When I got mine, it was leaking just a very little bit, where the line goes in. I tightened the nut a little as that was all I could and it stopped it.

normde2001 · Jun 23, 2005

"I looked at Hoye's web site at the exploded breakdown and I do not see anything below it. Am I missing something here?"

Yep, I see item # 33, gasket, chamber, part # 1004900-11450, $1, (part of the head blowup).

fig · Jun 23, 2005

Thanks Dick & Norm,

I have wrenched on the two nuts holding the injector in, but I do not want to push my luck on making it worse or breaking something.

I should have thought to look at the breakdown on the head to see if there was something there.

Thanks guys!

Fig

1danny · Jun 23, 2005

The head has to be off in order to drive the pre combustion out of the head.

Danny

kayssupply · Jun 23, 2005

When I had a YM2000 head at a shop I asked them to remove the chambers. They put it in a press and totally mashed one and gave up. I put the head on a bench and soaked it daily with PB Blaster. After a few days a tap with a brass hammer and it dropped right out.

1danny · Jun 23, 2005

I use an old impact socket that is about the same size as the chamber, place the nut side of the socket on the chamber and hit it with a hammer and it comes right out.

Danny