View Full Version : Brass Oil Pump Gear

04-12-2008, 06:31 PM
Wondering if anyone can tell me if mine has the brass oil pump gear. Trying to figure out if that might be the problem with my loss of oil pressure. Here's a couple pics of it. It's in a 1999 Sportstar open bow. 330hp mutiport fuel injection:


04-12-2008, 06:39 PM
Here's a rear shot:

03 35th Anniversary
04-12-2008, 07:00 PM

That coil pack sure does make it hard to pull the distributor and run the oil pump with an electric drill and see if you have oil pressure......

04-12-2008, 08:20 PM
Looks like the LTR motor. As far as the recall for the oil pump, I think you have to pull the motor and drop the oil pan to access it. I've got the same motor and I haven't ever done this check. I just keep an eye on the oil pressure gauge. Are you sure you don't have oil pressure as opposed to a failed sending unit, guage, or other electrical gremlin?

04-12-2008, 08:37 PM
This post by jmac197 in the original thread may be of some info, if you haven't seen it,

Actually, and I'm sure I'll be corrected, the coil pack tells me that the engine does in fact have a distributorless ignition and has the aluminum shaft with the brass oil pump gear on it. The teeth on the gear should be flat, not concave. When my gear went the teeth were very concave and some were smoothed right over. You'll be able to tell.

There should be a silver disk on the rear of the top of the block held in by a single 1/2 or 9/16ths head bolt and retainer. Remove those and the shaft should just come straight out, it will probably require a little twisting to break it free.

The replacement gear is steel and will be a dark grey where the brass...well looks brass.

I hope that's what it is! $40 for a new gear and you're off to the races!

04-12-2008, 09:06 PM
Yup you have the aluminum shaft with the brass gear.....Well maybe not the brass gear, but that is the shaft with the oil pump gear

04-12-2008, 09:29 PM
I saw your post and it comfirmed what I thought. I had already looked at that part of the motor and took the bolt out and tried to pull it out but it only spun so I left it alone. Came back in the house and saw your first post about the brass bearing and went back to work. After a few minutes of pulling and twisting and a little sweating this is what I found!

This made me VERY HAPPY! Thank you all for your help and advice!

04-12-2008, 09:34 PM
AWESOME! That's about the best news you could hope for!

04-12-2008, 09:37 PM
AWESOME! That's about the best news you could hope for!
Tell me about me! Thank you for all your help!

04-12-2008, 10:25 PM
You have brass shaving in your oil...........don't forget to change it before you start it again.

04-12-2008, 10:46 PM
Yep! Already planning to get the oil tomorrow!

04-13-2008, 12:40 AM
Whew - that's good news.

Glad you found your problem.