Which OMC drive do I have

[4 eyed mustang]

I just purchased a 95 Four Winns 190 Horizon open bow and is has an OMC drive, not by my choice, but the boat is extremely clean so I bought it any way. It has a fuel injected 5.0 in it. Is this one of the drives that was built with Volvo parts or not and how can I tell. I have read that the later OMC cobras were simular to the Volvo SX drive. It does not say SX on the side of it only OMC Cobra. I am tring to find out if this is a good drive or not. Thanks in advace for any help.

 

[HT32BSX115]

Re: Which OMC drive do I have

I just purchased a 95 Four Winns 190 Horizon open bow and is has an OMC drive, not by my choice, but the boat is extremely clean so I bought it any way. It has a fuel injected 5.0 in it. Is this one of the drives that was built with Volvo parts or not and how can I tell. I have read that the later OMC cobras were simular to the Volvo SX drive. It does not say SX on the side of it only OMC Cobra. I am tring to find out if this is a good drive or not. Thanks in advace for any help.

Howdy,

You'll need to provide a little more info to identify it. The model number is the most important. Year model of the boat doesn't mean much since all boat manufacturers have routinely used "last year" models of engines and drives for many years.......so you might just have a 94 model.


I don't want to scare you but if you have an EFI, electronic ignition OMC engine, you may have the worst year ever made (aside from the fact that OMC is out of business) There may be parts you simply cannot buy for that EFI or ignition system.

For example, your ECM (OMC 3854889) would have a list price of $1230 if it was still available.

However, If you "kill' the engine you're not really "dead" in the water because you can probably just replace the engine with a similar (5.0L or 5.7L+ different flywheel housing) engine that has a distributor and carburetor on it.

I did some checking on some of the other drive parts like the housing etc and it appears that they may also be NLA. (it was also superseded by a newer number that also appears NLA)

That of course doesn't mean that you can't replace what you have with an SX. You might be able to do that.

There's a few years of OMC drives that are not very supportable right before they switched to the JOINT (VP SX) drive........I thought it was around 95 or 96.

You can check your options by noting your model number and comparing it to models and parts at http://epc.brp.com/

You can also find used drives "all over the place"...........There's also people that rebuild those drives as long as the NLA hard parts aren't broken.



Sorry about that.....



Rick

 

[4 eyed mustang]

Re: Which OMC drive do I have

Where do I find the model number of the drive?

How reliable are the early fuel injections used on these motors. It is a very low hour boat so I am hoping for the best right now. Are they know to have problems?

 

[Rugerdog]

Re: Which OMC drive do I have

On my '88 Cobra drive there is a tag on the drive itself. Standing at back of boat looking at the drive unit the tag is on the left side real close to where the upper and lower cases bolt together..look around. I didn't even notice mine at first.

 

[HT32BSX115]

Re: Which OMC drive do I have

Where do I find the model number of the drive?

How reliable are the early fuel injections used on these motors. It is a very low hour boat so I am hoping for the best right now. Are they know to have problems?

I don't think they were unreliable. That is, they'll have the same problems as other EFI engines.

It's just that if something breaks that is specific to that EFI system, you may have some difficulty finding a replacement part to fix it.

You need to use the complete model number of your engine/drive system.

It'll be one of the following.

502APHUB 1995

502APHUE 1995

50FAPHUB 1995

50FAPHUE 1995


The first 2 are the carbed engines and the second one is the EFI model.

If it's a 1994 model (which it could very well be)

The following are valid (carb and EFI)

502ACPMDA 1994

502AGPMDA 1994

50FACPMDA 1994

50FACPMDM 1994

50FAGPMDA 1994

50FAGPMDM 1994


Although the above are actual links they won't work. GO TO http://epc.brp.com to get there.


You'll need to find your actual model number (usually on the engine ) to determine which one you have.

On my '88 Cobra drive there is a tag on the drive itself. Standing at back of boat looking at the drive unit the tag is on the left side real close to where the upper and lower cases bolt together..look around. I didn't even notice mine at first.

That may not work since his drive is very different than your much earlier dog-clutch drive......

 

[4 eyed mustang]

Re: Which OMC drive do I have

I was supposed to pick up the boat tomorow but we changed it to thursday, I will let you know what numbers I find.
Thanks for the help

 

[Don S]

Re: Which OMC drive do I have

If you can't get numbers, just post some pictures of the drive and transom shield. That would actually work better than numbers.

http://forums.iboats.com/showthread.php?t=468676

One other note, the model and serial number tag is in the same place on the SX as it is on the older dog clutch drives.

Maybe this will help you if you can remember what it looks like. The SX version was also the darker gray for OMC compared to the lighter gray for the Volvo version.
Transom shields are identical. It's all about the drive itself.

 

[HT32BSX115]

Re: Which OMC drive do I have

If you can't get numbers, just post some pictures of the drive and transom shield. That would actually work better than numbers.

http://forums.iboats.com/showthread.php?t=468676

One other note, the model and serial number tag is in the same place on the SX as it is on the older dog clutch drives.

Maybe this will help you if you can remember what it looks like. The SX version was also the darker gray for OMC compared to the lighter gray for the Volvo version.
Transom shields are identical. It's all about the drive itself.

View attachment 147982

Don, there wasn't any dog-clutch drives sold in 94 or 95 was there? 1993 appears to be the last year for "dogs"

That should make his either an OMC interim drive or an actual OMC/VP joint (SX) drive shouldn't it?

Assuming it's stock, that is....