how do you pull sleeves from a yanmar diesel?

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gpa bill
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how do you pull sleeves from a yanmar diesel?

Postby gpa bill » Tue Apr 08, 2014 5:42 pm

hi Aaron,
I hope you or a reader can suggest a solution to pulling sleeves in a yanmar diesel ym 155d
I made the puller as others have suggested with angle steel and a threader rod, pulling off of head bolts. Please see attached photo. The bottom plate is just the size of the cylinder. I added tension with no pull. I added ice to the sleeve and still no pull, even after it all melted. I even tapped it from the bottom with a length of steel and a hammer, but no go.
Should I try to heat the block with a heat gun?
or is there another way to get it to break loose?
Should I give up the pull and hone and try to get an oversize piston?
Help please
thanks
GPa Bill

winston
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Re: how do you pull sleeves from a yanmar diesel?

Postby winston » Wed Apr 09, 2014 6:02 am

I believe the key is to having heavy enough steel and threaded rod. I haven't experienced it, just read of others having to go to larger materials. Don't think your picture came through.
Attachments
puller.jpg
puller.jpg (103.3 KiB) Viewed 2606 times

Norm
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Re: how do you pull sleeves from a yanmar diesel?

Postby Norm » Wed Apr 09, 2014 10:27 am

What winston said. There is no other way but to beef up your materials, (assuming "no pull" means your parts are bending).

littleguy
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Re: how do you pull sleeves from a yanmar diesel?

Postby littleguy » Thu Apr 10, 2014 6:08 am

Here's the puller I made.

viewtopic.php?f=1&t=2285&start=15

gpa bill
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Re: how do you pull sleeves from a yanmar diesel?

Postby gpa bill » Mon Apr 14, 2014 8:09 pm

hi
thanks for the photo
Yes my puller did bend, and I straightened it 3x. I didnt have 1/2in steel and should have gone to get it.
It did finally pull, but only after using a steel rod and a sledge hammer to loosen it from below
I pulled the head and will have valves ground while waiting for the sleeves to come in
Any suggestion for driving in the new sleeves?
thanks Guys
GPa Bill

littleguy
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Re: how do you pull sleeves from a yanmar diesel?

Postby littleguy » Tue Apr 15, 2014 6:15 am

Just make sure the block is good and clean, especially where the O-rings seat. They should tap in fairly easy.

gpa bill
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Re: how do you pull sleeves from a yanmar diesel?

Postby gpa bill » Tue Apr 15, 2014 7:56 pm

thanks
I honed the holes in the block lightly so that the sleeves would go in easier, and will greese them.
Nice to hear from someone who has experienced it before
thanks
Gpa Bill

Norm
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Re: how do you pull sleeves from a yanmar diesel?

Postby Norm » Wed Apr 16, 2014 9:11 am

gpa bill wrote:thanks
I honed the holes in the block lightly so that the sleeves would go in easier, and will greese them.
Nice to hear from someone who has experienced it before
thanks
Gpa Bill


I hope they don't leak. The manuals recommend painting the sealing surface.

gpa bill
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Re: how do you pull sleeves from a yanmar diesel?

Postby gpa bill » Thu Apr 17, 2014 2:06 pm

hi
I read a blog on this site that said they dont paint anymore. How about using a sealer?
thanks

Norm
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Re: how do you pull sleeves from a yanmar diesel?

Postby Norm » Thu Apr 17, 2014 8:10 pm

gpa bill wrote:hi
I read a blog on this site that said they dont paint anymore. How about using a sealer?
thanks


I'm sure a blogger knows more about Yanmars than the Yanmar engineers. I tend to trust the OEM service manual.

nothead14
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Re: how do you pull sleeves from a yanmar diesel?

Postby nothead14 » Tue Apr 16, 2019 8:34 am

Aaron do you suggest painting the sleeve holes before installing new sleeves? If so what kind of paint? Also the sleeves were hard to get out. What is the procedure for installation of sleeves? How do you keep the orings from damage when installing? Will it be as hard to get in as it was to get out? If so I don’t know how to keep them from damage. Your help is appreciated!

Aaron
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Re: how do you pull sleeves from a yanmar diesel?

Postby Aaron » Tue Apr 16, 2019 11:42 am

1.jpg
1.jpg (70.09 KiB) Viewed 368 times



There are a lot of steps that you can skip when doing a project like this but each step you leave out increases your risk of getting to do it all over again. I assume the paint is applied to prevent corrosion and it is possible that modern coolants eliminate that need- but I don't know that for sure. It might also be applied for the sealing nature of the paint around the o-rings. I will say that I have not heard of any other manufacturer that recommend painting the liners... but Yanmar also has a reputation for some of the longest running diesel engines and unique processes like this might be one of the reasons.


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