Still Bogging after troubleshooting 95' 3.0LX

B

bulldog327

Cadet
Joined
Apr 19, 2006
Messages
12
Alright guys, my first post was incorrect in some ways so let me repost with the corrections. My 95' Glastron 17.5 ft has been bogging badly when you engage the throttle. Recently checked all the simple stuff: New Plug Wires, New Plugs, New Distributr Cap, Timing is Good, Replaced Module, Ran (3) cans of Sea Foam through the Gas Tank and still no luck. My temps are good and oil pressure was around 40PSI at WOT and voltage was also good. Also idles as good as it ever has.<br /><br />At Wide Open Throttle it hits about 2500RPM and 10-15MPH (and it boggs very bad)<br /><br />If you put it in neutral and rev it sounds pretty good, but will only reach about 4300-4500 RPM, I am going to do a compression test tonight and see how that reads.<br /><br />Has anyone had anything like this ever happen.<br />Any help would be greatly appreciated. :D
 
B

bulldog327

Cadet
Joined
Apr 19, 2006
Messages
12
Re: Still Bogging after troubleshooting 95' 3.0LX

Also what PSI should I expect when checking the compression?<br /><br />Thanks, Brent
 
B

bulldog327

Cadet
Joined
Apr 19, 2006
Messages
12
Re: Still Bogging after troubleshooting 95' 3.0LX

Thanks Don that was very helpful!<br /><br />Anyone have a good guess on what i could check next to fix the stalling/bogging problem?
 
Bondo

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,444
Re: Still Bogging after troubleshooting 95' 3.0LX

Guess a WAG,...........<br /><br />You've dropped the Flapper Valve,+ It's Blocking the Exhaust............<br /><br />Air can get In,+ Can't get Out..........<br /><br />It's Possible you'll be Looking at something like This,.... When you pull the Drive.....<br /><br />
transass.jpg
<br /><br />Just a Guess......... :rolleyes: <br /><br />Doesn't really sound like Fuel Filters,.......... But I'd Change them Anyways.......
 
B

bulldog327

Cadet
Joined
Apr 19, 2006
Messages
12
Re: Still Bogging after troubleshooting 95' 3.0LX

Thanks Bondo, fixin to check the compression.<br />What causes the flapper valve to drop?
 
B

bulldog327

Cadet
Joined
Apr 19, 2006
Messages
12
Re: Still Bogging after troubleshooting 95' 3.0LX

Well after testing the compression this is how it went:<br />Cylinder 1 = 180 PSI<br />Cylinder 2 = 180 PSI<br />Cylinder 3 = 180 PSI<br />Cylinder 4 =
 
B

bulldog327

Cadet
Joined
Apr 19, 2006
Messages
12
Re: Still Bogging after troubleshooting 95' 3.0LX

My Mistake, <br /><br />Cylinder 4 = 170 PSI<br /><br />I thought these were pretty good readings, My next guess is to have the carb rebuilt. It has never been rebuilt since it was made in 1995. My car mechanic thinks it is the high speed jets in the carb,<br /><br />What do you think guys?
 
ron7000

ron7000

Banned
Joined
Jul 10, 2004
Messages
498
Re: Still Bogging after troubleshooting 95' 3.0LX

dude your cylinder #4 is shot. you need a new motor.<br /><br />just kidding,<br />clean out the carb real well, replace the power valve, you don't need to replace the main jets just shoot them with carb cleaner.<br />Replace your fuel filter(s),<br />there may be a filter screen on the inlet side to the fuel pump which a lot of people have reported gets clogged and causes fuel starvation. The other fuel filter screen may be on the inlet to the carb, which you'll see when you go through the carb. One last thing I can think of is the fuel tank vent, which people have reported can get blocked and cause fuel starvation. While your at it, make sure all the fuel lines are free of restrictions, right into the fuel tank pickup tube... basically go through the whole fuel system because any crap will just gunk up the carb.
 
Don S

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Still Bogging after troubleshooting 95' 3.0LX

Here is a list from a Volvo service manual with a few notes (in blue). About all you can do is start eliminating the possibilities.<br /><br />
Low%20Engine%20WOT%20rpm.png
 
B

bulldog327

Cadet
Joined
Apr 19, 2006
Messages
12
Re: Still Bogging after troubleshooting 95' 3.0LX

Thanks guys, I have checked the inlet filter to the carb and cleaned it out, but was unaware of any other fuel filters. I will check the filter to the inlet of the fuel pump, hopefully i will find the problem there. Anyway the carb probably needs to be rebuilt it has never been cracked open and is due for a good cleaning.<br />Hey guys your info was very helpful and appreciate your time to give me some advice.<br /><br />Later, Brent
 
L

Lakefisher420

Cadet
Joined
Jun 21, 2004
Messages
26
Re: Still Bogging after troubleshooting 95' 3.0LX

I had the same problem last season sractched my head about it for weeks. I did New Plug Wires, New Plugs, New Distributr Cap, Replaced Module, checked the feul pickup and I still had the problem. So borrowed my buddys outboard tank and hooked it up to the water separator and the boat ran great not one problem. It is not worth the time or money to tear open the floor and replace the seats just to put a new tank in so I am running 2 outboard tanks one on each side and I have had no problem at all. BTW i have the same year and motor.
 
A

akaSharkey

Cadet
Joined
Feb 12, 2006
Messages
25
Re: Still Bogging after troubleshooting 95' 3.0LX

oranglastron I have the same motor and there is a fuel filter in the bottom of the fuel pump also.<br />
25.gif
<br />Remove the cup on the bottom of the fuel pump and replace it.<br />I would also check the anti-siphon on the fuel tank
 
B

bulldog327

Cadet
Joined
Apr 19, 2006
Messages
12
Re: Still Bogging after troubleshooting 95' 3.0LX

Thanks Guys, I will look at the fuel delivery this weekend, appreciate all your help.<br /><br />Later Brent
 
You must log in or register to reply here.
Top