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Chris Craft Model K Fuel Pump Replacement

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Valley Girl
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Chris Craft Model K Fuel Pump Replacement

Post by Valley Girl » Wed Jul 12, 2017 7:55 am

I’m planning to replace the fuel pump on my Chris Craft 1948 Model K engine and wanted to check to see if anyone had details on how to properly do this.

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mbigpops
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Re: Chris Craft Model K Fuel Pump Replacement

Post by mbigpops » Wed Jul 12, 2017 1:24 pm

Can you explain what you mean by "replace" ?

Are you swapping yours out for the same fuel pump only rebuilt or are you asking about how to put a different style fuel pump on the engine ?

Mark
1953 CC Rocket Runabout "Rocket Man"

Valley Girl
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Re: Chris Craft Model K Fuel Pump Replacement

Post by Valley Girl » Wed Jul 12, 2017 2:39 pm

Yes, I'm replacing it with the same fuel pump (FP1) from Classic Boat Connections

http://www.classicboatconnection.com/fu ... _parts.pdf

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mbigpops
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Re: Chris Craft Model K Fuel Pump Replacement

Post by mbigpops » Thu Jul 13, 2017 12:28 pm

Okay so I installed my rebuilt fuel pump on my KL and it was pretty straightforward.

You will need a new gasket between the fuel pump and the block and then it just bolts on.

Mark
1953 CC Rocket Runabout "Rocket Man"

Valley Girl
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Re: Chris Craft Model K Fuel Pump Replacement

Post by Valley Girl » Thu Jul 13, 2017 1:16 pm

Thanks Mark -

I'm assuming the lever coming off the fuel pump goes under the lifter inside the block based on the shape. Is this correct? Did you use gasket sealant when you attached the pump?
Also, are there any Torque settings for the bolts that attach the pump to the block?

- Ken

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mbigpops
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Re: Chris Craft Model K Fuel Pump Replacement

Post by mbigpops » Fri Jul 14, 2017 6:52 am

I am not an engine guy so I just know that the lever went in and mine works.

I used Permatex on the gasket and I don't know of a torque spec. for the bolts.

Mark
1953 CC Rocket Runabout "Rocket Man"

jim g
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Re: Chris Craft Model K Fuel Pump Replacement

Post by jim g » Fri Jul 14, 2017 3:31 pm

Valley Girl wrote:Thanks Mark -

I'm assuming the lever coming off the fuel pump goes under the lifter inside the block based on the shape. Is this correct? Did you use gasket sealant when you attached the pump?
Also, are there any Torque settings for the bolts that attach the pump to the block?

- Ken
The lever rides on the lobe. This is what makes the pump work.

Valley Girl
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Re: Chris Craft Model K Fuel Pump Replacement

Post by Valley Girl » Fri Jul 21, 2017 2:46 pm

Thank you for the responses.

I installed the new pump but I'm not able to get it to prime the fuel bowl using the primer lever on the pump. Any suggestions on how to troubleshoot? Also, I placed some fuel in the bowl first before installing.

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drrot
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Re: Chris Craft Model K Fuel Pump Replacement

Post by drrot » Fri Jul 21, 2017 3:40 pm

rotate the flywheel one turn. Fuel pump arm might be high on the lobe.
Jim Staib
www.finewoodboats.com

1929 Chris-Craft 26' #898 http://www.finewoodboats.com/1929%20Chris26.htm
1929 Chris-Craft 28' #3107 http://www.finewoodboats.com/1929%20Chris28.htm
1947 Penn Yan 12' Cartopper WXH474611
1950 Chris-Craft 22' Sportsman U-22-1532
1959 Chris-Craft 26' Sea Skiff SK-26-515
1968 Century 17' Resorter FG-68-174

Valley Girl
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Re: Chris Craft Model K Fuel Pump Replacement

Post by Valley Girl » Fri Jul 21, 2017 7:06 pm

Do I need to remove the pump or can I just crank the engine over a couple of times?

jim g
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Re: Chris Craft Model K Fuel Pump Replacement

Post by jim g » Fri Jul 21, 2017 8:38 pm

Just spin the engine over. If the carb is already full. You will not be able to prime it more.

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Jim Godlewski
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Re: Chris Craft Model K Fuel Pump Replacement

Post by Jim Godlewski » Sat Jul 22, 2017 6:37 am

Ken,
Turn the key and hold it for a few seconds, it should fill up and start. Just be sure you do not have any leaks.
I've not once used that primer lever to prime the bowl. It will happen.
1956 17 Sportsman CC-17-2310
1930 Model 100 7152
https://1956chriscraftsportsman.shutterfly.com/

Valley Girl
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Re: Chris Craft Model K Fuel Pump Replacement

Post by Valley Girl » Mon Jul 24, 2017 5:09 am

Jim Godlewski wrote:Ken,
Turn the key and hold it for a few seconds, it should fill up and start. Just be sure you do not have any leaks.
I've not once used that primer lever to prime the bowl. It will happen.
Jim - This worked.

Thanks again everyone for your help!

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Jim Godlewski
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Re: Chris Craft Model K Fuel Pump Replacement

Post by Jim Godlewski » Mon Jul 24, 2017 9:07 pm

Beautiful! Happy Boating...
1956 17 Sportsman CC-17-2310
1930 Model 100 7152
https://1956chriscraftsportsman.shutterfly.com/

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