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Oil system problem!!!

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Jet Boat Maloney

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« on: August 11, 2013, 09:34:26 PM »
I have a BBC with a 14qt Bassett oil pan. Normal oil psi is 25 at idle up to 75 at full throttle. My problem is if I'm on it and then let out of throttle it will drop to zero for a second or two. Wouldn't that pan have some sort of baffling built in it so all the oil doesn't rush to front of pan and starve the pump?


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GT Jets

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« Reply #1 on: August 11, 2013, 10:31:04 PM »
I have a BBC with a 14qt Bassett oil pan. Normal oil psi is 25 at idle up to 75 at full throttle. My problem is if I'm on it and then let out of throttle it will drop to zero for a second or two. Wouldn't that pan have some sort of baffling built in it so all the oil doesn't rush to front of pan and starve the pump?


How much oil do you have in that 14 quart pan?

Have you done this test with a mechanical gauge? Could it be electrical?

It actually sounds like a windage problem.

also, are you certain the pan bottom is not touching anything?

GT
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If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

Just Electric

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« Reply #2 on: August 11, 2013, 10:35:50 PM »
Did you assemble the motor and pan and pick up. If so did you use putty or play do to check how far the pick up sits from the bottom of the pan

Jet Boat Maloney

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« Reply #3 on: August 12, 2013, 08:22:51 AM »
Bought the boat complete haven't seen the inside. @GT the previous owner told me to keep it at the add mark on the dip stick.  Without building it myself I'm kinda in the dark on what kind of baffling I got going on in there. I know it does have a windage tray.

coggy

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« Reply #4 on: August 12, 2013, 04:41:31 PM »
I had the same problem I put a oil accumulator bye moroso it's a poor mans dry sump it keeps oil supplied to the pump so no danger of running motor dry

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Jet Boat Maloney

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« Reply #5 on: August 13, 2013, 08:01:35 AM »
@Coggy how does that system work can you tell me a little more. Thanks Tad


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Jet Boat Maloney

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« Reply #6 on: August 13, 2013, 08:05:33 AM »
Thinking about pulling motor so I can see first hand on what's going on in that pan. Also thinking that over filling might of foamed the oil????

lbhsbz

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« Reply #7 on: August 13, 2013, 08:50:47 PM »
Thinking about pulling motor so I can see first hand on what's going on in that pan. Also thinking that over filling might of foamed the oil????

Yup.  Run it with 10 quarts and see what happens....

GT Jets

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« Reply #8 on: August 13, 2013, 09:11:10 PM »
Yup.  Run it with 10 quarts and see what happens....


 8)

That was the reason for the question.... a 14 quart pan does NOT hold 14 quarts, I don't care what anybody says. 12 tops.

GT
  • Boat #1: 1992 Carrera 20.5 Elite (I/O bitches)
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If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

Jet Boat Maloney

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« Reply #9 on: August 13, 2013, 10:06:36 PM »
Thanks GT ill drain it and start fresh.

Jet Boat Maloney

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« Reply #10 on: August 16, 2013, 11:20:43 AM »
I think 9 1/2 going to be the number. Thanks guys

JetBoatJesse

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« Reply #11 on: August 16, 2013, 05:42:35 PM »
Sounds like when I was drag racing as I would come out of the wet box at 5500 and slow to a stop it would drop. I bought a oil pan with a trap door in it. So as you went forward the door closed and kept the oil by the pickup.  Not sure what's out there for boats that have that but I'm putting one on the small block I'm putting in mine.  I also had the same pan on my 4x4 crawler and it never droped oil Presser, going up or down sand dunes. 

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Jet Boat Maloney

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« Reply #12 on: August 16, 2013, 09:19:07 PM »
It might be some thing I'm going to have to look into. I'm thinking I might of overfilled it and foamed the oil haven't been able to test it yet. Waiting on a scoop. Thanks Tad

Jet Boat Maloney

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« Reply #13 on: September 12, 2013, 12:50:22 AM »
I decided to go with a three quart accusump system. I'm hoping that does the trick. Installed it today going to test it tomorrow.


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Jet Boat Maloney

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« Reply #14 on: September 13, 2013, 11:13:56 AM »
Accusump worked perfect !!!!!


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