cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPDATE

orrismic

Seaman
Joined
Jul 10, 2004
Messages
60
I have a 1990 3.0 Cobra straight4 cylider. I had the boat worked on last week. They replaced the U-joint,gimble bearing, bellows, shift cable and adjusted the shift cable. I took the boat out to the lake last night to get a little fishing in. The leak stopped. The boat is a lot quiter with the new gimble bearing and ujoint but, now a new problem. It idles beautiful but when I give it some throttle it chokes after about 300 rpm higher than idle (500-600) so right at about 900-1000 it just bogs down really bad. It sounds like it is flooding. Never gets anybetter after warming up or more throttle but when I bring it back to idle or idle plus 300rpms sounds and feels fine. I called the marina because I ran 1/2 tank through the boat with a morning of fishing the day I dropped it off for repair and the boat ran like a top. The marina says it probably isn't their fault because it is a performance issue that has nothing to do with what they worked on. All I know is it ran great when I dropped it off and now it bearly works. Can anybody help me trouble shoot this. I just put $1000 into it and it bought me more repairs. I'd liek to do this one myself. Anybody have any suggestions on where to start? Is there a carb adjustment on my holly 2bbl for above ide mixture? Thanks<br /><br />Mike
 

TwoBallScrewBall

Lieutenant Commander
Joined
Sep 14, 2003
Messages
1,695
Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

The cable might be out of adjustment, prematurely tripping the ESA and causing the problem.
 

orrismic

Seaman
Joined
Jul 10, 2004
Messages
60
Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

ESA? Electronic shift something... kills the motor so the gears can mate? Is this what we are talking about?<br /><br />And if so, wouldn't that just kill the motor all together?<br /><br />Thanks.
 

tommays

Admiral
Joined
Jul 4, 2004
Messages
6,768
Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

and easy thing to do is check the timeing and see if it is advanceing the motor will not run at high rpm if it doesent<br /><br />its hard to change one cable with out touching the other<br /> <br />i dont no for sure but max advance should be about 2500 rpm<br /><br />tommays
 

orrismic

Seaman
Joined
Jul 10, 2004
Messages
60
Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

Steve,<br /><br />If the ESA is triped would the boat still run ok at idle+ speeds?
 

orrismic

Seaman
Joined
Jul 10, 2004
Messages
60
Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

bump
 

marunr

Petty Officer 1st Class
Joined
Jul 11, 2004
Messages
225
Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

Check the switches on the ESA. When you put the boat in gear the roller lever should move slightly then center itself in the lever. If it's not centered it is probably engaged and would cause your problem. It would work fine in idle at all speeds because it doesn't engage until you put it in gear. Your marina probably did not adjust it properly...read http://www.funkopolis.com:8080/~stuart/cobra/ <br /><br />By the way...Steve gave me this info a couple of months ago. Thanks Steve!
 

orrismic

Seaman
Joined
Jul 10, 2004
Messages
60
Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

Guys,<br /><br />Thanks a ton for all of your help. Woke up early this morning and dumped the boat in the lake. Sure enough it was the roller lever not disengaging. It was riding a little high in the vally. Slight adjustment so it would settle and now it runs like a champ (well more like third place ....3.0 liter:) Thanks again you guys. This is my first boat, about 8 weeks old now and you've helped me out a half dozen times already.<br /><br />Mike
 

DHPMARINE

Captain
Joined
Dec 16, 2003
Messages
3,688
Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

If the shift interupter switch (ESA),activates it will cut out half the cylinders on your engine.It is shift cable related.If you had a Mercruiser,it would cut out all the cylinders.<br />Call the marina and tell them again what is going on.If they won't at least look at it,find a better marina and have them check the rest of the work.<br />DHP
 

DHPMARINE

Captain
Joined
Dec 16, 2003
Messages
3,688
Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

Glad you sorted this out.You also learned something about that marina.<br />DHP
 

orrismic

Seaman
Joined
Jul 10, 2004
Messages
60
Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

Sure did. My neighbor just got his stearing linkage fixed there. The connected it wrong. When he turned left it went right and vice versa... guess I'll find a new one. Anybody with a good one feel free to let me know. I live in Plymouth MI, and unfortunatly I know this is not going to be the last time she needs some work.<br /><br />Mike
 

TwoBallScrewBall

Lieutenant Commander
Joined
Sep 14, 2003
Messages
1,695
Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

Re: cobra 3.0 Bogging bad after Marina does shift cable replacement/bellows. UPD

Hmm, I'd stay away from that marina. The steering thing is scary. <br /><br />Glad you got it fixed!
 
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