Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

[projo198]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

Ok, quick update and 2 questions.

I didn't get the boat in the water yesterday. I was messing around with the carb and noticed one of the gaskets was leaking. Upon reassembly I had stripped out a screw holding it together, but I used loctite and thought I got it tight enough. I guess not. So I ended up tapping the hole out to 1/4 SAE and getting a new screw. Time consuming but worth it. Didn't matter anyway because my friend couldn't make it, and he is bringing his jet skiis in case I need hauled back in!

Idle is still high I think. My tachometer in the dash jumps all over the place, so I am really not sure what I am at. Haven't had chance to check the wiring yet. On a 2.3 would 7G be a pretty brisk idle? I don't want to damage my gears.

AND MY QUESTIONS;

1)Does anyone know the SPECIFIC carb part number I need to order with for a MARINE carburetor, and maybe a cheap place to look? Lowest I have found is in the $300 range. I won't be avle to get a core deposit because I don't have a marine carb to give back.

2) Do I need an electric or manual/temperature choke? This probably sounds dumb, but I want to be sure. My carb now has a terminal off of the choke housing assembly and a wire going to it, but it also has a "choke vacuum diaphram assembly" with only a vacuum line going to the carb. On most places when ordering I have the option to choose.

Thanks guys.

 

[forgot]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

I vaguely remember reading a post about the tach jumping, causing running issues, believe it was Bond-O.....anyone have some input or remember what it was about?

 

[projo198]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

I am also having NO idea where these vacuum ports would normally go on a car. I plugged them to be safe, but now I have a hard time keeping an idle.

 

[Levinz11]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

Ok, quick update and 2 questions.

I didn't get the boat in the water yesterday. I was messing around with the carb and noticed one of the gaskets was leaking. Upon reassembly I had stripped out a screw holding it together, but I used loctite and thought I got it tight enough. I guess not. So I ended up tapping the hole out to 1/4 SAE and getting a new screw. Time consuming but worth it. Didn't matter anyway because my friend couldn't make it, and he is bringing his jet skiis in case I need hauled back in!

Idle is still high I think. My tachometer in the dash jumps all over the place, so I am really not sure what I am at. Haven't had chance to check the wiring yet. On a 2.3 would 7G be a pretty brisk idle? I don't want to damage my gears.

AND MY QUESTIONS;

1)Does anyone know the SPECIFIC carb part number I need to order with for a MARINE carburetor, and maybe a cheap place to look? Lowest I have found is in the $300 range. I won't be avle to get a core deposit because I don't have a marine carb to give back.

2) Do I need an electric or manual/temperature choke? This probably sounds dumb, but I want to be sure. My carb now has a terminal off of the choke housing assembly and a wire going to it, but it also has a "choke vacuum diaphram assembly" with only a vacuum line going to the carb. On most places when ordering I have the option to choose.

Thanks guys.

You need a dwell/tach/timing light combo or all three seperately if you want to keep working on your boat.

The carb on my boat is a Rochester R2-2GE. According this your boat originally came with the same carb...http://bpi.ebasicpower.com/c/OMC6C-IB/Carburetor+Kits+for+OMC+Inboards look about half way down the page.

Looks like $300 is the going rate for that carb.

Can't help you with the choke question. Do you have this manual ?...http://www.mediafire.com/?j74z0nib459gh

 

[projo198]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

You need a dwell/tach/timing light combo or all three seperately if you want to keep working on your boat.

The carb on my boat is a Rochester R2-2GE. According this your boat originally came with the same carb...http://bpi.ebasicpower.com/c/OMC6C-IB/Carburetor+Kits+for+OMC+Inboards look about half way down the page.

Looks like $300 is the going rate for that carb.

Can't help you with the choke question. Do you have this manual ?...http://www.mediafire.com/?j74z0nib459gh

I was unable to download from that link, my computer threw out all kinds of visur warnings.

I have been using the 600 page manual I downloaded here on the foum, I believe it was under one of the top stickies. I printed it out, that took awhile...

 

[projo198]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

Ok quick update;

After rebuilding the automotive carb as best I could with a marine rebuild kit and re-tapping a stripped screw hole I put it back on the boat.

In an effort to get my tach working I checked the wiring under the dash, the fuse, and the terminal off of the distributor (I believe this is where it gets it's signal right)? That terminal was heavily corroded do I cleaned it and dabbed grease on it after putting it back together.

The tach now works intermittently, but only for 1-2 seconds.

So yesterday I put it back on the water. No matter what we did to the carb, adjusting both the idle screw and the adjustment screws, we could not get the engine to idle below 12-1300 rpm. Anything less as the motor just dies.

I assume this is why my boat stalls in gear. My buddy noted that at an idle the carb was pretty much just trickling fuel into the intake.

So I have decided I'm done working on the boat until I get a new marine carb. I'm thinking this is my problem, and even if it isn't I want the right carb on the boat anyway.

So I have a few guns for sale if anyone is interested lol!

 

[Levinz11]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

The signal for the tach comes off the coil. Sometimes this trick will get a finicky tach to work again... Find the screw on the back that selects 4,6,8 cylinder engine. Turn it back and forth like 20 times and leave it in the appropriate position for your motor. 50/50 it will fix it.

Have you tried unplugging those vacuum connections?

 

[projo198]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

Ya, I tried with those ports both plugged and opened. I'll try the coil adjustment thing Sunday, we're camping at the lake right now. Seems like everyone has a boat except us lol. A least we have a camper!

 

[projo198]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

Ok 2 quick questions.

I now have a dwell meter/tachometer. To measure the dwell I hook the positive wire of the meter to the negative stud on the ignition coil, and the negative wire of the meter to a good ground, correct?

Is it the same when measuring RPMs?


I also have a cylinder pressure gauge I will be using today. I think I found a big mistake; when we were checking the timing the other day and upon closer inspection I am pretty sure the motor was running at 10 degrees AFTER TDC, not before like it should be.

Could this be causing my boat not to idle less that 12-1300?

Also, as far as my dash tach not working, I checked out my ignition coil but there was no selector switch behind it for different numbers of cylinders.

Thanks again, I am chuggin' along here....

 

[bruceb58]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

The selector switch is behind the tach.

As far as measuring dwell, look at the instructions.

I kinda doubt your engine would even run with timing at 10? ATDC

 

[projo198]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

The selector switch is behind the tach.

As far as measuring dwell, look at the instructions.

I kinda doubt your engine would even run with timing at 10? ATDC

Oh I got the dwell instructions, no problem there. I just need to know if these apply to reading tach as well.

 

[Levinz11]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

Ok 2 quick questions.

I now have a dwell meter/tachometer. To measure the dwell I hook the positive wire of the meter to the negative stud on the ignition coil, and the negative wire of the meter to a good ground, correct?

Is it the same when measuring RPMs?


I also have a cylinder pressure gauge I will be using today. I think I found a big mistake; when we were checking the timing the other day and upon closer inspection I am pretty sure the motor was running at 10 degrees AFTER TDC, not before like it should be.

Could this be causing my boat not to idle less that 12-1300?

Also, as far as my dash tach not working, I checked out my ignition coil but there was no selector switch behind it for different numbers of cylinders.

Thanks again, I am chuggin' along here....

My dwell/tach hooks up like this: Red wire to positive battery terminal, black wire to negative battery terminal, green wire to positive side of coil.

Bruce is right about the timing. It probably wouldn't run that retarded. But your timing marks may be "off", or dirty/rusty like mine are. 4-8 BTDC is probably where the motor sounds the best if you time by ear.

The selector knob for the tach is on the back of the tachometer. NOT THE COIL. Lol.

 

[projo198]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

My dwell/tach hooks up like this: Red wire to positive battery terminal, black wire to negative battery terminal, green wire to positive side of coil.

Bruce is right about the timing. It probably wouldn't run that retarded. But your timing marks may be "off", or dirty/rusty like mine are. 4-8 BTDC is probably where the motor sounds the best if you time by ear.

The selector knob for the tach is on the back of the tachometer. NOT THE COIL. Lol.

Gotcha on the tach switch, but my dwell meter has only 2 alligator clips.

 

[bruceb58]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

Bruce is right about the timing. It probably wouldn't run that retarded. But your timing marks may be "off", or dirty/rusty like mine are. 4-8 BTDC is probably where the motor sounds the best if you time by ear.

And of course you never time an engine by ear unless you want to damage it. 10? BTDC is spec.

 

[bruceb58]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

Oh I got the dwell instructions, no problem there. I just need to know if these apply to reading tach as well.

They should.

 

[projo198]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

Well we had a break-through in group tonight lol...

I am thinking my dwell and points were VERY MUCH wrong. I had a friend help adjust them last week, but instead of adjusting with the points block on the highest part of the distributor crank he did it with the motor at TDC, where the points block hadn't gone all the way up yet.

Today I did it right, set the gap with a feeler gauge and tested it with a dwell meter, getting a 36.

Once that was done I checked the timing, which was only 4 degrees BTDC. This was at a high idle though, so we adjusted the carb a bit, adjusted the timing, back and forth until I was getting 10 BTDC and the motor was idling comfortably at 600 (before I couldn't get under 1200)! We ran the idle down to around 450 to see if it would stumble and it did not. Hopefully this is it!

My tach is apparently bad though. I checked the back for the adjuster you guys mentioned and didn't find one. I even took the gauge completely apart to see if I was missing something, but there was no way to adjust for different motors. I just used my handheld dwell/tach gauge, but I do want to replace the boat's eventually.

Just gotta find an afternoon to get her back on the water, man I hope this did the trick!

 

[bruceb58]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

You did put in new points right? Not the ones you scuffed up earlier right?

When you measured your dwell, did it appear to be pretty steady throughout increasing RPMs?

New plugs too I hope!

 

[projo198]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

You did put in new points right? Not the ones you scuffed up earlier right?

When you measured your dwell, did it appear to be pretty steady throughout increasing RPMs?

New plugs too I hope!

No new parts yet. I had the terminology wrong, what I scuffed up at the beginning were the contacts inside the distributor cap, not the points. The points look new, and there is another set in the box of crap the owner gave me so I am assuming they were changed recently. He said he had replaced a lot of parts last season.

The dwell maintained pretty well while we were adjusting the idle, but I did not check it when reving the motor. I will check that tonight.

Changing the spark plugs this week as well, all I did last night was gap test them. They are actually really clean.

As you suggested I am still going to replace all the distributor parts you mentioned as well as the plugs. The carb may have to wait though until the wife allows some more money to be thrown into the water.

I would also like to give this tach meter one last chance before I replace it. I plan on digging into the wiring diargrams to see exactly where it gets it's signal from. The ignition coil has 2 leads but they seem to go directly into a wiring harness. Hopefully there is just a bad connection somewhere.

Thanks again!

 

[bruceb58]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

The tach goes to the negative side of the coil. There should be 3 wires on the negative side of the coil, tach distributor and ESA wires.

 

[projo198]

Re: Help please! Ford 2.3 and OMC Cobra outdrive stalls when shifted into gear.

The tach goes to the negative side of the coil. There should be 3 wires on the negative side of the coil, tach distributor and ESA wires.

Gotcha, I will check it tonight!