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Old 20-11-2015, 13:34   #61
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Re: Westerbeke 4-91 Injection Pump Leaking

Does anyone know where to get a new gasket for under the throttle body housing? I want to avoid having to make one with gasket sealer, etc
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Old 20-11-2015, 14:25   #62
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Re: Westerbeke 4-91 Injection Pump Leaking

I think there was one in the seal kit
If not, try these folks
http://www.tadiesels.com/
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Old 21-11-2015, 23:00   #63
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Re: Westerbeke 4-91 Injection Pump Leaking

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Originally Posted by MDR_Sailing View Post
Does anyone know where to get a new gasket for under the throttle body housing? I want to avoid having to make one with gasket sealer, etc
There's a diesel place in Long Beach. .. I'll see if I can find the name and report back !

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Old 23-11-2015, 10:18   #64
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Re: Westerbeke 4-91 Injection Pump Leaking

Thanks HappyMDRSailor, would love to be able to pick something up locally.
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Old 23-11-2015, 13:12   #65
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Re: Westerbeke 4-91 Injection Pump Leaking

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I ended up purchasing the previous o-ring kit that was linked in the thread for a Ford CAV pump, obviously that one is lacking the appropriate gasket for this application

If you know where there is one available online that would be greatly appreciated as well!
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Old 26-11-2015, 18:02   #66
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Re: Westerbeke 4-91 Injection Pump Leaking

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Originally Posted by MDR_Sailing View Post
Thanks HappyMDRSailor, would love to be able to pick something up locally.
Wowza sorry for the delay!

In Cali and sailing... I'm pretty sure the guys I was thinking of was Cal Marine Diesel (562) 491-5665, or it could have been S&W??? (310) 835-3155

Dunnae remember...
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Old 01-12-2015, 06:57   #67
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Re: Westerbeke 4-91 Injection Pump Leaking

My 4.108 pump has developed a leak. Looks like it might be the throttle plate as there is no other area there that could leak short of injector feed pipes.

Is the o-ring just behind the throttle plate?. Remove the bolt and pull the plate off and that exposes the o-ring?

Thanks. Bob
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Old 01-12-2015, 07:48   #68
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Re: Westerbeke 4-91 Injection Pump Leaking

I think the 4-108 has a different governor/throttle than the 4-91, but you can compare pics posted earlier in this thread.
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Old 02-12-2015, 02:07   #69
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Re: Westerbeke 4-91 Injection Pump Leaking

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Originally Posted by roberttigar View Post
My 4.108 pump has developed a leak. Looks like it might be the throttle plate as there is no other area there that could leak short of injector feed pipes.

Is the o-ring just behind the throttle plate?. Remove the bolt and pull the plate off and that exposes the o-ring?

Thanks. Bob
I have a 4.108M "new" model,it has the same FI pump as Sanibel Sailor's. You'll need to show a photo of your throttle body and point to where you believe the leak is,also there is no throttle "plate";possibly you mean the throttle "shaft" which ,internally, operates a metering valve which regulates the amount of fuel to the injectors thereby increasing/decreasing the power output of the engine .
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