Nissan 18e2 timing

[penoe01]

Can anyone tell me the proper procedure and specs fot setting the timing on a 1999 Nissan 18e2? Thank you for any help.

 

[Sea Rider]

Re: Nissan 18e2 timing

The magneto timing mark for that model is set at 25? measured in straight line at both cranckcase mating surface. Adjusting arm linkrod and advancer arm stop are 2 separate adjustments. Have you moved any of them as to need to be placed back to specs ?

Happy Boating

 

[penoe01]

Re: Nissan 18e2 timing

The magneto timing mark for that model is set at 25? measured in straight line at both cranckcase mating surface. Adjusting arm linkrod and advancer arm stop are 2 separate adjustments. Have you moved any of them as to need to be placed back to specs ?

Happy Boating

Yes, I have moved both. The online manual I have said the timing specs were 25 degrees at WOT and -3 degrees at idle. So, assuming the largest line on the magneto is 0 degrees I adjusted them so 25 or the 5th mark from 0 lines up with the crankcase mating surface at WOT and -3 (between 0 and the first line in the other direction) lines up at idle. Did I do this incorrctly?

 

[pvanv]

Re: Nissan 18e2 timing

What manual do you have? The Factory manual details how to set the timing correctly.

 

[Sea Rider]

Re: Nissan 18e2 timing

Have you moved/played with magneto yellow Ball Joint from it's factory setting ? If so, will need to be readjusted to start with. If not, you're ok. If you want throttle grip with slight less idle end play, adjust idle stopper B CW untill timing mark matches 0?, after that will need to turn idle (vertical) screw at carb 1/2 to 3/4 CCW turn to lower rpm that have risen bit by moving timing from -3? to 0?. Adjust idle rpm to match 800 in gear, 950 at idle.

Once you have corrected all upper syncs, full wot, check if you have butterfly at 180? and if white roller turns freely with finger when rotating, if not, adjust cam rod height a bit with side screw to compensate.

Happy Boating

EDIT: Please do not post copyrighted material

 

[penoe01]

Re: Nissan 18e2 timing

Have you moved/played with magneto yellow Ball Joint from it's factory setting ? If so, will need to be readjusted to start with. If not, you're ok. If you want throttle grip with slight less idle end play, adjust idle stopper B CW untill timing mark matches 0?, after that will need to turn idle (vertical) screw at carb 1/2 to 3/4 CCW turn to lower rpm that have risen bit by moving timing from -3? to 0?. Adjust idle rpm to match 800 in gear, 950 at idle.

Once you have corrected all upper syncs, full wot, check if you have butterfly at 180? and if white roller turns freely with finger when rotating, if not, adjust cam rod height a bit with side screw to compensate.

Happy Boating

I have played with the yellow ball joint. The Seloc manual says the setting for the 5-60L is 73mm and the 5-65L is 78mm. Is there any way to tell which one is on the motor. Should I just set it back to 73mm and readjust everything else? Thank you for your help, it is much appreciated.

 

[Sea Rider]

Re: Nissan 18e2 timing

Which color is ball joint, white or black ? Both have different measurements from rod snap end to ball joint nut. The method I use is measured with a vernier tool ? Do you have one handy ? Have you played also with lower link rod and rod joint sync as shown in second pic, under number 3 ?

Happy Boating

 

[penoe01]

Re: Nissan 18e2 timing

Which color is the yellow ball joint, white or black ? Both have different measurements from rod snap end to ball joint nut. The method I use is measured with a vernier tool ? Do you have one handy ? Have you played also with lower link rod and rod joint sync as shown in second pic, under number 3 ?

Happy Boating

The ball joint I have is black. I may have played with the lower link rod, can't remember. I did however lengthen it yesterday in order to get the 25 degree mark to line up after adjusting the upper link rod to 72mm. I don't have a vernier tool but I have a small sewing ruler with mm measurements on it.

 

[Sea Rider]

Re: Nissan 18e2 timing

Sorry, mental issues, was reffering to the other side of rod where there is a plastic support called Rod Snap. To understand, dark grey engines have white rod snaps, newer dark blue have black ones, black are bit longer and much easier to change than white ones.

Happy Boating

 

[penoe01]

Re: Nissan 18e2 timing

Sorry, mental issues, was reffering to the other side of rod where there is a plastic support called Rod Snap. To understand, dark grey engines have white rod snaps, newer dark blue have black ones, black are bit longer and much easier to change than white ones, check pic for measurement. If white can have missing pic info tomarrow.


Happy Boating

My rod snaps are white.

 

[penoe01]

Re: Nissan 18e2 timing

I have adjusted the timing to specs. from what I can tell. I still have a little hesitation and bogging down on acceleration, like something is not adjusted quite right. I'm out of ideas.

 

[Sea Rider]

Re: Nissan 18e2 timing

Some issues:

1-Check settings if corresponds, if not, readjust to specs as close as possible.
2-Once adjusted or not, readjust timing mark to match 25? by means of upper stopper A.
3-When grip at wot, does white roller resting against upper cam rotates freely when turning with fingers ?
4-Adjust rod height screw to match this condition.
5-Engine should run even at all throttle range.

If not and you have :
1-Carb completely clean previously soaked in reall cleaner dip.
2-Tank, fuel filters are inmaculate clean, o'ring connectors seal perfect against connector pick up.
3-Fuel pump diaphragams not cracked, dried, balloned. deformed.
4-Spark plugs are fresh and well gapped tight to 1.0 mm

This 13 year oldie seems needs a head gasket re torque to 30 NM if doesn't betters, head gasket is completely dried, hardened, letting very small water particles inside combustion chamber producing unwanted hesitation at different throttle range. Will do good to change carb o'ring Part : 3C8020110M as could be old, flat, dried letting unwanted air in too.

Happy Boating

 

[penoe01]

Re: Nissan 18e2 timing

Some issues:

1-Check settings if corresponds, if not, readjust to specs as close as possible.
2-Once adjusted or not, readjust timing mark to match 25? by means of upper stopper A.
3-When grip at wot, does white roller resting against upper cam rotates freely when turning with fingers ?
4-Adjust rod height to match this condition
5-Engine should run even at all throttle range.

If not and you have :
1-Carb completely clean previously soaked in reall cleaner dip.
2-Tank, fuel filters are inmaculate clean, o'ring connectors seal perfect against connector pick up.
3-Fuel pump diaphragams not cracked, dried, balloned. deformed.
4-Spark plugs are fresh and well gapped tight to 1.0 mm

This 13 year oldie seems needs a head gasket re torque to 30 NM if doesn't betters, head gasket is completely dried, hardened, letting very small water particles inside combustion chamber produce unwanted hesitation at different throttle range. Will do good to change carb 0'ring Part : 3C8020110M as could be old, flat, dried letting unwanted air in too.

Happy Boating

Thank you so much for your help. What does the NM stand for when you say torque to 30NM? I have replaced that carb O ring. I did soak carb in a carb dip for 4 hours and replaced all gaskets and plug. I will try what you have suggested above. Thanks again.

 

[pvanv]

Re: Nissan 18e2 timing

Thank you so much for your help. What does the NM stand for when you say torque to 30NM? I have replaced that carb O ring. I did soak carb in a carb dip for 4 hours and replaced all gaskets and plug. I will try what you have suggested above. Thanks again.

NM is Newton-Meters.

 

[Sea Rider]

Re: Nissan 18e2 timing

Will need to remove ignition coil from base to reach middle bolts. Torque all of them in the right sequence with torque wrench and lower 2 bolts which are difficult to reach with 1/2 "wrench. If re torquing doesn't solve the problem you need to change head gasket as has lost it's perfect seal, better remove complete crankcase from pan base, willl need to replace engine base gasket part 350013031M as will be hardened and burned. Take advantage to clean all water passages, decarbon piston & head if needed, should work as a champ...

Happy Boating

 

[penoe01]

Re: Nissan 18e2 timing

Will need to remove ignition coil from base to reach middle bolts. Torque all of them in the right sequence with torque wrench and lower 2 bolts which are difficult to reach with 1/2 "wrench. If re torquing doesn't solve the problem you need to change head gasket as has lost it's perfect seal, better remove complete crankcase from pan base, willl need to replace engine base gasket part 3506101211M as will be hardened and burned. Take advantage to clean all water passages, decarbon piston & head if needed, should work as a champ...

Happy Boating

Ok. I have removed the crank case before when I tried to replace the water pump. Thought the shaft may have been fused to the crank case because I couldn't remove the lower unit. It wasn't fused, crankcase came right off. Never could get the lower unit off though. removed the four bolts and disconnected the shift linkage but the lower unit wouldn't budge.

 

[TOHATSU GURU]

Re: Nissan 18e2 timing

The key step that is missing in this is troubleshooting. While you may eventually stumble on a problem and fix it by random replacement and procedures, you really need to step back and troubleshoot the engine using the manual.

 

[Sea Rider]

Re: Nissan 18e2 timing

Is lower tail rod completely free from upper shift rod joint, the round tube like where both meets ? If so, with a rubber mallet apply some bumps on different parts of tail to loosen down. Seems you are experimenting something like this :

http://forums.iboats.com/showthread.php?t=542292

Happy Boating

 

[penoe01]

Re: Nissan 18e2 timing

Is lower tail rod completely free from upper shift rod joint, the round tube like where both meets ? If so, with a rubber mallet apply some bumps on different parts of tail to loosen down. Seems you are experimenting something like this :

http://forums.iboats.com/showthread.php?t=542292

Happy Boating

The shift rod was completely disconnected. Tried mallet with a piece of 2x4 on the cavitation plate, even tried and air hammer but it never budged.

 

[penoe01]

Re: Nissan 18e2 timing

I adjusted both timing link rods to specs of 35mm and 40.5mm with a vernier caliper but now the 25 degrees mark will not line up at WOT. It is not hitting the stopper a either their is still a gap. It stops at like 22.5 degrees. Could the rod snaps possibley be worn out causing some play? when I lengthen the lower rod arm it will go all the way to 25 degrees. Thanks for any help you can offer.