2-stroke oil leaking
Moderators: Redneck_Randy, badmoonrising, lakerunner
2-stroke oil leaking
yoooo alll....
Got a friend with a (guessing 1995) 115 2-stroke merc outboard, and when ever he trims up to trailer position, the 2 stroke oil leaks out of the cap.
Appears to be a design flaw?
Anyone else seen this?
any fixes?
Got a friend with a (guessing 1995) 115 2-stroke merc outboard, and when ever he trims up to trailer position, the 2 stroke oil leaks out of the cap.
Appears to be a design flaw?
Anyone else seen this?
any fixes?
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'07 22 ft SunTracker Regency 135hp i/o
'02 Dodge 2500, Edge Juice w/Attitude
Colorado Springs, CO.
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'07 22 ft SunTracker Regency 135hp i/o
'02 Dodge 2500, Edge Juice w/Attitude
Colorado Springs, CO.
- curtiscapk
- Posts: 5401
- Joined: Mon Nov 10, 2008 8:31 am
- Location: OP KS\Hillsdale Lake
Re: 2-stroke oil leaking
My motor Walt but I got no tank. I premix sorry.
Craig and Paula
"THE FLOATER" rebuild Spring 2013
viewtopic.php?f=2&t=15328
94 Party Barge 24' 115 merc
Turning Point hustler 14 x 13 prop
22mph gps 3 people
12 F150
Overland Park Ks
Hillsdale Lake, KS
"THE FLOATER" rebuild Spring 2013
viewtopic.php?f=2&t=15328
94 Party Barge 24' 115 merc
Turning Point hustler 14 x 13 prop
22mph gps 3 people
12 F150
Overland Park Ks
Hillsdale Lake, KS
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- Posts: 2916
- Joined: Thu Nov 06, 2008 7:32 pm
- Location: Lake Oconee, Ga.
Re: 2-stroke oil leaking
On my old 90 merc it had a hatch in the top of the cowl for the oil tank. It had a wire that fit in like a keyway to hold the cap firmly in place. Just moved the wire down to remove cap to fill.
doc
doc
Dying ain't much of living boy
http://www.youtube.com/watch?feature=pl ... gm-sp1-Nhs
http://www.youtube.com/watch?feature=pl ... gm-sp1-Nhs
Re: 2-stroke oil leaking
mines does the same, tried fiddling with the cap and still.
it stopped when it leaked below the bottom of the cap
-bb
it stopped when it leaked below the bottom of the cap
-bb
Re: 2-stroke oil leaking
I is all coming back to me now. I do remember that with my 2 stroke Mariner/Merc
I figured out not to fill the tank all the way if I was going to tilt the motor. Usually I was on a lift so I had no reason to tilt it.
I even towed it down. The pontoon sat high enough on the trailer that I was not worried about dragging it.
I figured out not to fill the tank all the way if I was going to tilt the motor. Usually I was on a lift so I had no reason to tilt it.
I even towed it down. The pontoon sat high enough on the trailer that I was not worried about dragging it.
1974 Harris
70 HP 4 stroke EFI Yamaha
70 HP 4 stroke EFI Yamaha
- LTB Racing
- Posts: 118
- Joined: Fri Jan 15, 2010 5:20 am
- Location: Lake Tarpon, Florida
- Contact:
Re: 2-stroke oil leaking
You can try replacing just the o-ring on the cap however, more than likely you will have to replace the entire cap assy to stop the leak.
LTB Racing
Quartershot T3-R Merc 2.5 260
Fiesta 18 Party Barge w/ Twin Evinrude 50's
http://WWW.LTBracing.com
"The great ones practice the basics"
Quartershot T3-R Merc 2.5 260
Fiesta 18 Party Barge w/ Twin Evinrude 50's
http://WWW.LTBracing.com
"The great ones practice the basics"
- curtiscapk
- Posts: 5401
- Joined: Mon Nov 10, 2008 8:31 am
- Location: OP KS\Hillsdale Lake
Re: 2-stroke oil leaking
LTB how you been!
So How fast does the twin run now?
I think you should post pics for the newbs!
So How fast does the twin run now?
I think you should post pics for the newbs!
Craig and Paula
"THE FLOATER" rebuild Spring 2013
viewtopic.php?f=2&t=15328
94 Party Barge 24' 115 merc
Turning Point hustler 14 x 13 prop
22mph gps 3 people
12 F150
Overland Park Ks
Hillsdale Lake, KS
"THE FLOATER" rebuild Spring 2013
viewtopic.php?f=2&t=15328
94 Party Barge 24' 115 merc
Turning Point hustler 14 x 13 prop
22mph gps 3 people
12 F150
Overland Park Ks
Hillsdale Lake, KS
Re: 2-stroke oil leaking
I noticed that my 90hp 2 stroke ( which is physically the same as the 115 externally) the 2 stroke oil reservoir cap doesn't seal the best. I never have tilted my motor up further than just to trim while cruising around the lake, so I can't help you on the full up trim leaking cap scenario. I would just do like Greg said, and not fill up the reservoir to the top. I think I only go through a tank of oil about every 2-3 fuel tanks, so it doesn't go down fast. Plus, I always keep some extra oil on the boat, just incase it starts leaking or using it faster.
"Nauti Weasel"
2005 Beachcomber Islander 26
2005 Beachcomber Islander 26
- LTB Racing
- Posts: 118
- Joined: Fri Jan 15, 2010 5:20 am
- Location: Lake Tarpon, Florida
- Contact:
Re: 2-stroke oil leaking
Whats new Curtis? I've been busy man...between work and getting my tunnel boat dialed in and havent had much time to work on the pontoon. So far I've seen 34 mph out of it which is pretty good considerin I dont have lifting strakes...i'm gonna get going on it again soon..maybe a 3rd engine. How is your boat running?
As for the oil leak... usually what happens is the plastic portion of the cap(yellow) gets weak or the threads strip...then it wont or cant compress the oring when you tighten it...so it leaks. You should be able to trim it all the way up without a problem. You can buy the complete cap assy from any Merc dealer for about 30.00 I think.
As for the oil leak... usually what happens is the plastic portion of the cap(yellow) gets weak or the threads strip...then it wont or cant compress the oring when you tighten it...so it leaks. You should be able to trim it all the way up without a problem. You can buy the complete cap assy from any Merc dealer for about 30.00 I think.
LTB Racing
Quartershot T3-R Merc 2.5 260
Fiesta 18 Party Barge w/ Twin Evinrude 50's
http://WWW.LTBracing.com
"The great ones practice the basics"
Quartershot T3-R Merc 2.5 260
Fiesta 18 Party Barge w/ Twin Evinrude 50's
http://WWW.LTBracing.com
"The great ones practice the basics"
Re: 2-stroke oil leaking
Thanks Gang!
.... a third engine on a toon.... sweeeeet..
.... a third engine on a toon.... sweeeeet..
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--------------------
'07 22 ft SunTracker Regency 135hp i/o
'02 Dodge 2500, Edge Juice w/Attitude
Colorado Springs, CO.
--------------------
'07 22 ft SunTracker Regency 135hp i/o
'02 Dodge 2500, Edge Juice w/Attitude
Colorado Springs, CO.
- curtiscapk
- Posts: 5401
- Joined: Mon Nov 10, 2008 8:31 am
- Location: OP KS\Hillsdale Lake
Re: 2-stroke oil leaking
[quote="LTB Racing"]Whats new Curtis? How is your boat running?quote]
its been better!
viewtopic.php?f=2&t=6442
Hopefully get the sei next month.
its been better!
viewtopic.php?f=2&t=6442
Hopefully get the sei next month.
Craig and Paula
"THE FLOATER" rebuild Spring 2013
viewtopic.php?f=2&t=15328
94 Party Barge 24' 115 merc
Turning Point hustler 14 x 13 prop
22mph gps 3 people
12 F150
Overland Park Ks
Hillsdale Lake, KS
"THE FLOATER" rebuild Spring 2013
viewtopic.php?f=2&t=15328
94 Party Barge 24' 115 merc
Turning Point hustler 14 x 13 prop
22mph gps 3 people
12 F150
Overland Park Ks
Hillsdale Lake, KS