YM 1401D fuel injector pump

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Eddie101
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YM 1401D fuel injector pump

Postby Eddie101 » Thu May 21, 2020 8:40 am

So I have purchased a new injector pump. Anyone have any advice or tips about the install? I'm especially concerned about how many shims to use. I have the two that came off w/the old pump plus the 5-pc. set from Hoye. Any way to predict how many to use? The thought of removing the pump multiple times to get it right is not very appealing.

Aaron
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Re: YM 1401D fuel injector pump

Postby Aaron » Thu May 21, 2020 10:11 am

Typically you will just use the same shims that you took off. That will almost always be very close and is probably where 90% of our customer stop. Then, if you want to really dial it in, you will need to go through Yanmar's timing procedure and add/remove shims as needed to get the timing perfect.

Eddie101
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Re: YM 1401D fuel injector pump

Postby Eddie101 » Thu May 21, 2020 1:55 pm

Thanks. Should I use any gasket sealer on the shims?

winston
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Re: YM 1401D fuel injector pump

Postby winston » Thu May 21, 2020 7:24 pm

May not be the correct answer but I wouldn't. I changed the pump on my old 2002D and did not and had no problem with leakage.

Eddie101
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Re: YM 1401D fuel injector pump

Postby Eddie101 » Sat May 23, 2020 11:08 am

Thanks for that. Makes sense to me. I installed the pump yesterday. No problem with leaking at the shims. I haven't been able to stop leaks at all three fuel tube fittings at the top of the pump though. Guess I'll have to take them off and try to get them seated in better. The nuts are so close together that they're really hard to get tightened.

winston
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Re: YM 1401D fuel injector pump

Postby winston » Sat May 23, 2020 12:52 pm

yes, best I remember, if you start by putting in one line at a time and tightening, then move to the next one you are able to get them tight.

Eddie101
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Re: YM 1401D fuel injector pump

Postby Eddie101 » Sat May 23, 2020 1:15 pm

Thanks my man. I'm about to go do that right now.

Eddie101
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Re: YM 1401D fuel injector pump

Postby Eddie101 » Sun May 24, 2020 9:07 am

Glad to report success in re-doing those fuel tube connections. No leaks.


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