1989 5.7L OMC Cobra
I notices small drops coming out from where the riser sits on the manifold. This happens on both the right and left side. I noticed that this happens only in high RPMs and after i replaced the water circulating pump. I think the new pump creates bigger flow of water...
I Have an OMC Cobra 5.7 setup and I believe it has a power steering system.
I would like to service my steering system so that it is smooth and responsive. I was unable to find any info on this system and was hoping to get some advice from you guys.
I looked back at the steering cilinder and...
I was just looking at some Diesel engine options. Not that i need to repower but was just wondering whats out there.
a new Mercruiser MPI motor with about 320HP will cost about $10,000 installed. A comparable Cummins Mercruiser diesel motor will cost about $30,000 installed.
This doesnt...
I have a 5.7 350 chevy OMC motor. it has a main pulley that drives two belts, one going up to the alternator and the other going to the water pump i believe.
My pulley still functions but its pretty corroded. I would like to replace it but dont know where to get one or even what the propper...
I just completed my SEI116 cobra conversion. Essentially converted my 1989 Cobra drive to an aftermarket Alpha One drive.
conversion was easy to do, and a great investment IMO. So far i have 15-20 hours on the new drive and the boat runns better than ever. Happy customer here!
While...
1989 DOnzi 23 cuddy cabin with OMC 350 5.7.
what is the manufacturer's recommended WOT RPM range? does anyone know? not sure where to find this info, but would like to know.
thanks
I am in the process of installing the SEI conversion kit for CObra. The SEI116 is an exact copy of the Mercruiser Alpha One gen II.
As i am installing everything I have no ideal what this is. Not something I had on my cobra. It looks like some sort of a vent tube with a red o-ring
do I...
I need help identifying the rubber gimbal seal that sits behind the gimbal bearing on a 1989 OMC
it appears to have a metal spring in the seal, i guess to keep it tight on the drive shaft. I need took out my gimbal bearing but have no idea how to take out that seal and before I do, i need to...
I need to know how to differenciate between a COBRA and a KING COBRA outdrive.
SEI offers a conversion kit to replace the OMC Cobra outdrive with their Alpha 1 kit. According to SEI their kit will only work with the COBRA and not the KING COBRA.
how can i tel what i have? what is the...
Hi all,
So i finally pulled my 1989 OMC Cobra outdrive which is mated to a 5.7L Chevy 350.
My original problem started with not being able to shift into reverse. disconnected the lower shift cable at the top and tried to switch by hand to eliminate some of my suspicions. Shifted fine into...
I'm pretty sure i need to take my drive off to fix my reverse shifting problem. Since the drive will be off i would like to replace the gimbal bearing and u-joints as well along with the bellows and seals.
Cant find anywhere the right part # I need for the u-joints. Can anyone help...
Im pretty sure i have a bead GImbal bearing and possibly u-joints.
I have a 1989 OMC Cobra. Outdrive rebuilt end of last season.
When idling in neutral, i feel vibrations, thumping and squeaking churning noises. The noises get louder when i turn the wheel to the right and left. At higher...
I have a 1989 OMC Cobra 350. Last year the lower unit was rebuilt.
Yesterday I was out on the water and experienced shift problems. The Throttle control seems to be working a lot harder. More strength needed to move it into gear then usual. Then the reverse stopped working. I could pull...
I want to top off my hydraulic fluid reservoirs. I dont know what kind of fluid is currently in there. My question is if i can just add marine hydraulic fluid or should i drain and refil? Can i mix new with whats already in there?
I have a 7 inch red stripe just below the rub rail that gets oxidezed from year to year. I compound and clean every year only for it to last through half the season.
I've decided to repaint. What paint should i use? I've read that some guys on here use a Polyeurothene car finish paint, that...
