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  1. subcrx

    Alpha 1 Gen 2 prop hardware question

    Ok so I have a new outdrive, converted from omc to mercruiser. I now have an Alpha 1 gen 2 outdrive. The drive came without a prop and hardware. I bought a Solas Amita 3 prop with a pressed in hub and that's all I have. I can't figure out what else I need. I have no thrust washer and nut. I've...
  2. subcrx

    Best gear lube for cobra drive.

    Just rebuilt my 5.7l gearcase cobra outdrive from bottom up. Near GLM heavy duty gearset and dog. Not sure what the best lube would be to use. I have a couple bottles of Mobil 1 Synthetic Gear Lube LS 75w-90. Is this the correct lube? I've been searching online and have found people using...
  3. subcrx

    Prop fell off. whats parts will I need?

    I have a cobra drive with 5.7 gear setup. Last weekend the prop came off along with everything else that was there. So far I have a new prop, prop nut kit which has three parts, cotter pin, nut, and a castle lock that goes on the nut. Is there anything else left? Is there a spacer that goes in...
  4. subcrx

    Question about Cobra shift cable travel at the bellcrank.

    I have an 87 OMC cobra with 5.7l. Since day one Ive have problems with my drive clunking in forward. When shifting into forward I notice the shifter has to move much further than reverse to catch. I finally closed this gap by increasing the throw on the shifter handle. But my question is is it...
  5. subcrx

    Clutch dog on OMC Cobra replacement

    I'm pretty much a do it yourselfer on everything on this boat. I've replaced everything on it since I bought it. I am currently running a 87 Bayliner with a 350 and cobra outdrive. The clutch dog has been slipping since day one and now it's slipping all the time. I have had the cable adjusted...
  6. subcrx

    Choosing the right plug wires.

    I have an 87 OMC Cobra with a small block chevy. I was wondering if anyone can suggest some good plug wires. I'm willing to spend good money on a high quality set.
  7. subcrx

    Starter problem OMC with Chevy 350

    I have an 87 Bayliner with an OMC cobra setup. The engine is a Chevy 350. Recently I replaced the starter. Now at times when I try to start it the starter just free spins as if its never catching the flywheel. I inspected the flywheel and starter and they look ok. However I did notice on the...
  8. subcrx

    OMC lower unit gear housings.

    Looks like my 5.7liter OMC Cobra lower unit gear housing has to be replaced because the carrier bearing wont seal deep inside, its just too pitted. A new housing runs 1800 bucks. So im going to have to go with a used one. Ive found several but dont know if it will fit. The GLM one seems to...
  9. subcrx

    OMC Cobra leak from Carrier bearing O-Ring

    My 87 cobra is the 5.7 model. Its gotta leak from the rear of the carrier bearing o-rings. I replaced them once already. Held for only a few months and now its leaking again from the same spot. I remember when changing it out the inner walls of the lower unit housing were pitted a bit and...
  10. subcrx

    Chevy 350 pings under load.

    Hi I have a 87 omc setup with a rochester 4 barrel and the motor is a 350. Timing is right on. 6 degrees advanced and at 3k fine in nuetral. As soon as I put a load on it it pings. Gas is new. Only thing I can think of is the distributor. Any suggestions?
  11. subcrx

    Hydrolocked all cylinders loaded with saltwater. What happened?

    My 87 bayliner with its 5.7 liter cobra drive locked up on me at the launch ramp. I was on my way in from a days trip. boat ran well for the most part except for that stalling problem under load that I have been battling forever. Once I got back to the launch ramp at days end the ramp was...
  12. subcrx

    Stalls under load, just installed new engine

    Last couple trips out since the new motor while trying to get out of the hole engine stalls or almost stalls, rpms drop from 3500 to 500 or just completely stalls, starts right back up after. Im running a omc setup with chevy 350, carb is a quadrajet, and have electronic distributor. Any ideas?
  13. subcrx

    closing off an old thru hull

    I have a 1 inch thru hull drain on my starboard side thats under the water line. It is not in use. I want close it off. is there such thing as thru hull plugs? I cant find anything that will seem to work
  14. subcrx

    OMC shift assist module problem

    shift assist module not operating, The previous owner installed electronic ignition . is there a way to make it compatible with it?
  15. subcrx

    New engine. High oil pressure.

    Just took my boat out today after installing new 5.7 350 with a rochester carb. cooling system is closed. Oil pressure gauge maxes out at cruising speeds and when at idle drops to 80psi. It has never done that before, before it would read 40 when cruising and 0 at idle. Anyone seen such a...
  16. subcrx

    Choosing the right t-stat

    Just converted over to closed cooling system on an 87 omc cobra setup with a gm 5.7 350 engine. It can no longer use the style of thermostat that omc has set for it and omc never had a factory closed cooling system, so iboats doesn't list one for me to choose. Now It looks like it takes an...
  17. subcrx

    Cobra drive oil leak.

    Tilted my drive down today and outdrive oil spilled out from the prop. I pulled the prop off and saw the prop seal was fine. Its piling up behind that. Looks like a small pool in the exhaust area. Ive been looking at the tech drawings. A number of seals are there. Any common ones that go out...
  18. subcrx

    87 omc 350, no power, Help!

    Was out on sunday cruising to a fishing spot. Was on plane for about 30 minutes, and motor started dying, Came off of plane and motor died. I looked at the gauges and noticed temp was a little higher than normal but not really hot. I checked out the motor and It started back up, was kind of...
  19. subcrx

    Silicone? or something else?

    Hi i just got my outdrive lower unit back from repair. about to reassemble it and attach back to the transom. I have the gasket kits for both sides. Now my question is should i use some sort of silicone sealant with these gaskets? something else? or nothing at all.
  20. subcrx

    87 OMC 800 loud thunk

    I purchased my boat a couple months ago. Ive been doing extensive repairs throughout the stern. Since day one ive been having trouble with the shifter. Was very hard to get out of gear at all times. I narrowed that down to the idle. It was around 1100 to 1200 at all times for the 5.7 liter. Now...
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