Oil Alarm Woes......1987 150HP v6 BlackMax

[mxzeatr]

Re: Oil Alarm Woes......1987 150HP v6 BlackMax

The prop shop I deal with will let you try a prop for a day, provided you leave credit card info, and don't rototill with it. He's even asked me to test a prop or 2 for him just to let him know what I think.

The smaller LU,s use a prop that has a 4 inch bore, and the standard LU uses a 4 1/2 inch bore. The LUs are bolt interchangable, so even the serial number doesn't really mean much.

A stainless prop is enough thinner than aluminum to grant a considerable performance edge. Also you can usually get away with surfacing them a bit, where a V6 will rip the ears off an aluminum prop driven like that.

My XR4 is hot enough I needed a 24 inch prop to hold it down. There's very few motors that'll pull a 24 inch 4 inch bore prop, so I found one that the prop shop was trying to sell and got it for a hunnert bucks. I surface it a bit, and get decent top end, without sacrificing a neck snapping hole shot.

Def. looking at stainless if I get a new/diff prop. Its got a 19 pitch on it now and it really seems to do well. The boat will do about 47mph on my GPS. Thats more then enough for me. But if I could get a little bit better out of the hole and keep the same top end, I'd go for it. I've heard just going to a stainless in the same size might do good for me. I'd like to keep my alumn. one for a spare.

Only the Xr4 & Xr6's came with the small "inline" lower unit, all the Xr2's was a standard 150 with :200 divider plate,200 tuner and advance box and made about a extra 10hp.. As for your boat it has a non-planing hull so stay with a large diameter prop(13 3/4 or larger) or a 4 blade aluminum...

Pretty sure thats the diameter its got now (I want to say 14" but it may be 13 3/4) x 19 pitch. Would you stick to somewhere in the same area? What would a 4 blade do for me?

Found this prop semi-locally. But seems it might be too small diameter wise. I also do not know what it fits.

http://grandrapids.craigslist.org/boa/1842099286.html

 

[mxzeatr]

Re: Oil Alarm Woes......1987 150HP v6 BlackMax

QUESTION:

Just got the block off kit in my hands. I see its cut flat on one edge. Is it apparent when I pull the pump off as to what edge goes up/down? (or side to side, I can't remember the pumps orientation off hand)

Thanks!

-Eric

 

[mxzeatr]

Re: Oil Alarm Woes......1987 150HP v6 BlackMax

BTT.

I added a pic above.

 

[Faztbullet]

Re: Oil Alarm Woes......1987 150HP v6 BlackMax

flatside goes to crakshaft..........

 

[mxzeatr]

Re: Oil Alarm Woes......1987 150HP v6 BlackMax

Thank you!

Heading down to work on it in a couple hrs. Was hoping I'd have the answer, maybe its apparent once I got in there, didn't want to screw it up though. Thanks!

 

[mxzeatr]

Re: Oil Alarm Woes......1987 150HP v6 BlackMax

QUESTION/UPDATE:

The 'RED' wire that hooked to the purple wire to power the alarm modual. Do I just tape that off and leave it. It seems to go into the harness of motor so thats what I'm thinking, but just checking to be sure.

Everything is off and un-hooked. The oil injection stuff is all removed as well. Check valve hole is plugged, and oil pump blocker is installed. Gas is mixed 50:1 and I had custom warning labels made up for the boat, I also ran the boat for about 10 minutes prior to doing any of the work to ensure mixed gas flow thru it.

The overheat alarm, I just unhooked the 'tan' wire from the alarm modual off the plastic block where the black and two tans met. The tan wire remaining goes right into the harness and I'm assuming up to the control. If I ground that block out with my tester the alarm sounds, so I should be good to go right?

Buddy is comming to time the motor this evening. Hope to get to the water tomorrow!

 

[mxzeatr]

Re: Oil Alarm Woes......1987 150HP v6 BlackMax

Boat is re-timed. Had to advance it about 2.5 degrees from what it was set at before. Pretty interesting to see that procedure done. Could I replicate it? Maybe, but I'll leave that to the pros a couple more times.

Hope to water test it tomorrow. Will report back. Thanks for all of your help!

Eric

 

[199675hpforce]

Re: Oil Alarm Woes......1987 150HP v6 BlackMax

Wow my head hurts reading all this hehe. Am looking at purchasing 1992 with 150 black max. Having second thoughts! Good news it's new im mean new lol. Still every time I start the dam thing id worry about it blowing up. Cant afford to put a new block on new to me boat.

 

[mxzeatr]

Re: Oil Alarm Woes......1987 150HP v6 BlackMax

I wouldn't have second thoughts.

I'm almost certain it was a faulty alarm modual. But I just wasn't willing to spend the money to fix it when I could just pre-mix and forget it. But while looking/digging around the motor for that I found the advance modual wires screwed up. Thats the part that I was most worried about, but hopefully thats no great shakes either now!

This forum is great, they've helped me a lot in the last 2 months! Now I hope to get out on the water worry free!

 

[mxzeatr]

Re: Oil Alarm Woes......1987 150HP v6 BlackMax

Ran boat for about 3 hrs straight today. Was very pleased NOT to hear the alarm going off.

Everything went well, the temp gauge seemed to run a bit hotter, but I'm not certain I believe that thing anyways. Had great waterpressure and an awesome tell tale finally!

Motor seemed to idle ok, although it did putter a couple times like it was going to stall going up river with it just barely clicked in gear (I was testing it). I didn't do a WOT and check the plugs, but I did check them when I got home. The area around the electrode (inside) was all nice and chocolate brown, so I think its running great. Cyl 2 was a little darker like it wasn't burning as clean, or it was running a bit rich. Does the amount of build up on the outter diameter of the plug matter? I had a couple with buildup the rest were pretty clean with just oil deposits on there.

The couple times I did run WOT I was turning 5700 rpms and running about 46 on the GPS. Pretty happy with that!

Thanks for all of your help guys!

-Eric