Boat died while surfing. Any thoughts?

[prostar205]

While surfing my boat just died. No alarms, temp was at 160, voltage was at 13, oil pressure at 60 psi. I can hear the fuel pump come on and cycle. After letting it sit, it will start but it's a struggle and only for a 1-2 seconds, then dies.

I'm thinking the IAC or fuel pump. How do you check the fuel pressure?

The boat is a 2002, X-30 with the L18 (8.1L) and 730 hours.

Thanks,
Tom

[hyman989]

While surfing my boat just died. No alarms, temp was at 160, voltage was at 13, oil pressure at 60 psi. I can hear the fuel pump come on and cycle. After letting it sit, it will start but it's a struggle and only for a 1-2 seconds, then dies.



I'm thinking the IAC or fuel pump. How do you check the fuel pressure?



The boat is a 2002, X-30 with the L18 (8.1L) and 730 hours.



Thanks,

Tom

Voltage seems low? Is it normally around 13 volts? Mine normally runs around 14-14.5 range for volts. I would check the battery and ensure it was holding a charge. And the connection on it are tight.

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[prostar205]

Voltage seems low? Is it normally around 13 volts? Mine normally runs around 14-14.5 range for volts. I would check the battery and ensure it was holding a charge. And the connection on it are tight.

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The gauge is not very accurate. At the batteries (there are 3), they all read 14.2-ish at 1,000 rpms. The voltage is the least of my worries right now.

[brucemac]

Spark? Check the coil lug on the center of the distributor cap to make sure it's not ever so slightly cracked. There should be ZERO wiggle or play. Had a similar issue.

Also may want to check the relays. Likely not the fuel pump relay though if you're hearing it prime the rails, but there's a couple of others.

Check engine light coming up intermittently or at all?

[Hammer]

Can you hear the fuel pump turn on with the key? There is usually a schrader valve on the fuel rail that you can depress and see if fuel sprays out(preferably with a rag as not to spray fuel all over the place.

[bturner2]

I'm voting fuel pump.

[jgraham37128]

I vote fuel pump.

[prostar205]

Spark? Check the coil lug on the center of the distributor cap to make sure it's not ever so slightly cracked. There should be ZERO wiggle or play. Had a similar issue.

Also may want to check the relays. Likely not the fuel pump relay though if you're hearing it prime the rails, but there's a couple of others.

Check engine light coming up intermittently or at all?

The 8.1L engine is coil on plug - there is no distributor cap.

No alarms, no check engine light - just quit.

[prostar205]

Can you hear the fuel pump turn on with the key? There is usually a schrader valve on the fuel rail that you can depress and see if fuel sprays out(preferably with a rag as not to spray fuel all over the place.

Yes, when the key is turned on to the right, the fuel pump come on and primes.

I can't find the schrader valve to check if I have fuel pressure. Anyone know where that is on a L18 and/or have a picture of it?

[prostar205]

The fuel pump was last replaced in 2006 with about 150 hours on the boat. It now has 730 hours. Probably time for the fuel pump to go TU.

[Hammer]

Under the cover, near the front of the motor(back of boat) on the starboard side if I remember correctly.

[sp00ky]

Ignition control module?

[tr6coug]

While surfing my boat just died. No alarms, temp was at 160, voltage was at 13, oil pressure at 60 psi. I can hear the fuel pump come on and cycle. After letting it sit, it will start but it's a struggle and only for a 1-2 seconds, then dies.

I'm thinking the IAC or fuel pump. How do you check the fuel pressure?

The boat is a 2002, X-30 with the L18 (8.1L) and 730 hours.

Thanks,
Tom

This has happened to me on 2 different MCs. Both times it was the fuel pump.

[prostar205]

This has happened to me on 2 different MCs. Both times it was the fuel pump.

When this happened to you, did your fuel pump cycle and prime but the engine didn't start?

[RTPx30]

We had an X30 that would lose all electronics mid-surf... ended up being ballast bags tripping the breakers on the perks switch. Your issue sounds slightly different but worth a check.


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