omc 4.3 difficult to disinguage gears

[matthew daley]

hi can you help i have a 1993 omc cobra 4.3 v6 ive fitted the update cable to leg-red cable. my boat has only 1 switch fitted to it where cables meet on engine is this a shift assist switch iff not can i fit it to my boat as ive tried every thing it goes in to gear fine sumtimes grinds abit but when trying to return to neutral is is very hard to do iff i lower idle speed until its just running it makes a big difference .

iff you can fit a shift assist is there a wiring diagram and a list of components that are needed.

 

[Howard Sterndrive]

Re: omc 4.3 difficult to disinguage gears

all parts diagrams are online at shop.evinrude.com (go parts, then sterndrive and go to 1993)

sounds like that is your ESA switch.

Is the drive original? there are different shift rofd heights in the lower units that, if incorrect, can make cable adjustment impossible

you want to get a factory manual -ebay or Ken Cook publications

 

[matthew daley]

Re: omc 4.3 difficult to disinguage gears

hi as far as i can see theres only one switch is the cdi unit on the right hand side as you face the engine the esa module?
its an electronic ignition dizy iff that helps cheeers mat

 

[bruceb58]

Re: omc 4.3 difficult to disinguage gears

What kind of electronic ignition distributor? Most of the time the ESA is incompatible with those.

 

[matthew daley]

Re: omc 4.3 difficult to disinguage gears

it looks original as its as rust as engine what i can make out that it has a prestolite cap on it the cap has round bottom iff that helps and its not a conversion cheers mat

 

[bruceb58]

Re: omc 4.3 difficult to disinguage gears

Yes, forgot that OMC got rid of points by then.

With the engine running, depress the switch shift and see if the engine stumbles. If it doesn't, could be the switch or the ESA module. First test the switch with a meter for continuity or jumper it to see if the engine stumbles. If it still doesn't, check wiring and plugs going to the ESA including making sure power is present.

 

[matthew daley]

Re: omc 4.3 difficult to disinguage gears

hi will do ckecks bit confused though is there only 1 cdi box on engine iff so does it do spark and esa as i cant find another box cheers mat

 

[bruceb58]

Re: omc 4.3 difficult to disinguage gears

http://www.dougrussell.com/partscat...,1198,1199,1200,1201,1202,1203,1204,1205,1206

Item #40 in the link

 

[matthew daley]

Re: omc 4.3 difficult to disinguage gears

thank you for the help ive looked at page and it clears alot of my troubles up so ile do sum checking weekend and get back to you then cheers matthew

 

[matthew daley]

Re: omc 4.3 difficult to disinguage gears

right ive looked at engine in detail as its been removed for refurbishment i found the esa box i think but it has five wires and 1 plug but on diagram it has 4 wires and 2 plugs iff i remember ile get numbers off it to see iff you can reconise it cheers mat

 

[bruceb58]

Re: omc 4.3 difficult to disinguage gears

Did you operate the switch to see if it stumbles your engine?

 

[matthew daley]

Re: omc 4.3 difficult to disinguage gears

no not at the moment as engine is in bits as last owner didnt no what servicing is can you tell me iff chrome liners are standard as mine has them can i fit standard cast rings iff so cheers mat ile get the part numbers off it to moz ans post them hear

 

[matthew daley]

Re: omc 4.3 difficult to disinguage gears

has any won got the shift heights for leg

 

[matthew daley]

Re: omc 4.3 difficult to disinguage gears

hi ive got the shift module off boat can sum won check iff it it is it as mine has 5 wires
987567
15C1C-BA
V6 CHEV
all so has any won got any measurements for the leg shift height from selector middle to edge of water pump casing in neutral or any gear as long as a measurement can be taken.
all so a mate has given me a garmin gps map 235 sounder can any won tell me where to obtain the chip that plugs in whitch the charts are on and power cables and a transducer is needed as he sold boat along time ago and has lost them hope you can help cheers mat