pull yanmar injector and cleaner shop`

navigator97 · Sep 9, 2014

On my Yanmar 2GM20F diesel, I replaced both Injectors at 1488 Eng. Hrs. One definetly needed replacing, the other would be Ok "for awhile" with cleaning. I decided to replace both. I had the yard diesel mechanic do it. For diagnose & repair labor & Injectors w/ gaskets, etc. it was $1,033. If they only need cleaning, I am sure it would be a lot less.

Bill Roosa · Sep 9, 2014

looks like you can get a OEM new injector on EBay for around $100
It is not much harder than a spark plug to replace BTW
$1000-2*100=$800 to replace 2 spark plugs!!!!! I'm in the wrong business.

Bill Roosa · Sep 9, 2014

or you might try Gumout injector cleaner as your fuel tank gets close to empty (10 gal left)

Dunlookin · Sep 10, 2014

I use Tidewater Marina in Havre de Grace, MD.

I talked to the shop about having mine pulled and checked out. I was told the cost is about $ 100.00 per injector.

I didn't ask about the removal and install. Thier work is fantastic and runs about $ 75.00 an hour.

I have too many hobbies to remember how to do something I only plan on doing every five years or so. I pay the professionals to do what they do every day.

If I don't do something often...I tend to &*^% up one tiny part that really does not allow things to end well.

As always...IMHO.

newage1461 · Sep 10, 2014

Rebuilding will cost at least half the cost of new ones. At around $100 each just replace with new. They will last well past your ownership of the boat.

Paul Cossman · Sep 12, 2014

Checking fuel injector spray patterns

jtmccue said:
Has anyone removed their diesel injectors and sent them out for cleaning??

I have an '85 Yanmar 2GMF and despite my use of seaform and adding cetaine i think its about time I rejuvenated the injectors.

Can anyone provide any pointers on extricating the injectors and what shop they sent them too for cleaning/testing. what is approximate cost/injector.

Thanks

Jim

Hi Jim,

Getting back to your original question: removing injectors for cleaning. The injectors are VERY easy to remove. It's just what it looks like: loosen the retaining nut and pull the injector out. I have done it a number of times. After removing the entire injector assembly, take them to a decent shop that works on marine engines. They will have a hand-operated device that pumps diesel fuel through the injector. This allows the mechanic to observe whether the spray pattern is still good, or whether there is any blockage or whether the fuel "drips" rather than sprays. The entire spray test takes less than one minute per injector. Sometimes I leave the injectors with the shop and pick them up later in the day and there is a small charge for the service. Other times I have had mechanics perform the test for me on-the-spot without any fee at all.

I have a 1991 Yanmar 4JH2-TE that has over 5,000 hours on it. Most of my injectors are original and have never had the nozzles replaced. (I remove and check them every 600 hours or so). For those injectors, no cleaning is required as they still have a good spray pattern. All is dependent upon the cleanliness of your fuel supply.

Good luck,
Paul

Paul Cossman · Sep 28, 2014

Good luck, Jim. Hopefully they'll check one of the nozzles while you're there so you can see what it's all about. Once you see it you'll understand completely. A good spray looks just like perfume being sprayed out of an atomizer. When it's partially clogged you can see a full drop collecting and falling down.

Paul