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 1998 Mariner 150hp quit at full throttle
#12257119
05/22/17 04:14 PM
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Joined: Mar 2015
Posts: 67
NathanD
OP
Outdoorsman
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OP
Outdoorsman
Joined: Mar 2015
Posts: 67 |
I was running at about 4,200 RPMs on Saturday when all of a sudden the motor sounded like it had popped into neutral because it revved real high. An alarm started going off and I quickly turned the motor off. Now it won't start and it makes a loud popping noise out of the lower unit that sounds like a gun shot. It's a 1998 Mariner 150hp. I plan to take the boat in to have my boat guy take a look, but just wondering if anyone has any ideas what the issue may be?
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Re: 1998 Mariner 150hp quit at full throttle
[Re: NathanD]
#12258369
05/23/17 11:41 AM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
Broke the main shaft in lower.
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
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Re: 1998 Mariner 150hp quit at full throttle
[Re: NathanD]
#12260071
05/24/17 03:24 AM
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Joined: Jun 2004
Posts: 1,509
OPTI
Extreme Angler
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Extreme Angler
Joined: Jun 2004
Posts: 1,509 |
When you say a loud popping is it like a back fire or a metal clunk....OPTI
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Re: 1998 Mariner 150hp quit at full throttle
[Re: NathanD]
#12260298
05/24/17 12:38 PM
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Joined: Mar 2015
Posts: 67
NathanD
OP
Outdoorsman
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OP
Outdoorsman
Joined: Mar 2015
Posts: 67 |
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Re: 1998 Mariner 150hp quit at full throttle
[Re: NathanD]
#12261898
05/25/17 03:37 AM
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Joined: Jun 2004
Posts: 1,509
OPTI
Extreme Angler
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Extreme Angler
Joined: Jun 2004
Posts: 1,509 |
Check your flywheel cant remember the year late 90's early 2000's but they had a rash of flywheel nuts backing off and flywheel would pop up and jump time not saying that is what is but if it is back firing it is out of time. Or one other possible thing is the bia circuit in switch boxes the bia circuit is what controls the timing and keeps it steady.....OPTI
Last edited by OPTI; 05/25/17 03:39 AM.
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Re: 1998 Mariner 150hp quit at full throttle
[Re: NathanD]
#12261969
05/25/17 05:47 AM
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Joined: Nov 2006
Posts: 2,861
TLW
Extreme Angler
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Extreme Angler
Joined: Nov 2006
Posts: 2,861 |
this maybe...."Or one other possible thing is the bia circuit in switch boxes the bia circuit is what controls the timing and keeps it steady.....OPTI"
'98 150 efi is a 2.5... no way flywheel can do that on those unless a bunch a splines go south either in flywheel or on tha crank................
Last edited by TLW; 05/25/17 05:50 AM.
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Re: 1998 Mariner 150hp quit at full throttle
[Re: NathanD]
#12263497
05/26/17 03:12 AM
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Joined: Jun 2004
Posts: 1,509
OPTI
Extreme Angler
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Extreme Angler
Joined: Jun 2004
Posts: 1,509 |
Believe me it can happen I got a crank with the splines tore up and it also trashed the stator and flywheel Nut back of just enough that the flywheel jumped the splines I did a couple back in the early 2000's...OPTI
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Re: 1998 Mariner 150hp quit at full throttle
[Re: NathanD]
#12263732
05/26/17 12:04 PM
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Joined: Nov 2006
Posts: 2,861
TLW
Extreme Angler
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Extreme Angler
Joined: Nov 2006
Posts: 2,861 |
maybe so.. jus never seen it but seems like if it did that it would be pretty obvious where tha problem is when ya hit tha starter again...........
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