L Drive Problems

[Marine Power]

Model 125LD9B. 4 cylinder . I Know this motor is a problem, but the boat is sweet. I Need info on where I can obtain parts and info. The boat is a 1989 Bayliner capri with the 1989, 125 hp force L drive. The bottom 2 cylinders are flooded with water. Top two cylinders have overheated pistons. Don’t know where the water is coming from. I need advise. Is there any other engine I could replace this with, such as a outboard. The boat was specifically built for an L drive. I have already put a grand in to the engine. I cant find the problem .Any info will be appreciated.

 

[roscoe]

Re: L Drive Problems

No other motor can be used, unless you gut the transom area, reinforce, and completely rebuild the transom.<br /><br />You can get a complete rebuilt powerhead for $1200-$1600.<br /><br />The drive units are a nightmare, no parts available.<br /><br />Has this boat been used in saltwater?<br />If so, probably corroded away from the inside.<br /><br />If not corroded internally, usually a complete set of gaskets and seals for the water jacket, head, and exhaust, should stop any leaks.<br /><br />Put a grand into it?<br />What have you done/replaced?

 

[Marine Power]

Re: L Drive Problems

No saltwater. I just bought it for a grand, boat (bayliner) and engine, did not know what engine it had. What does a complete set of gaskets include and would u happen to know what part number it is.<br />can you look here and tell me what you think I should replace.<br /> http://www.mercruiserparts.com/selectDocs.asp?doc_nbr=FOB4464

 

[roscoe]

Re: L Drive Problems

I would do a compression check first, check all 4 cylinders. Get a bvase reading for future reference.<br /><br />Then pull the head and replace the gasket.<br />Then pull the exhaust port manifold and replace both gaskets.<br /><br /><br /> http://www.mercruiserparts.com/Show...464/19.png&inbr=1313&bnbr=80&bdesc=POWER+HEAD <br /><br />Other posibility is that the water is coming in thru the drive unit somehow, then up thru the bottom of the powerhead.

 

[Marine Power]

Re: L Drive Problems

Yes, the compression check would be great but I already went ahead and took of the head and exhaust gasket. Should I use these to check compression or buy new gaskets.

 

[roscoe]

Re: L Drive Problems

new

 

[Marine Power]

Re: L Drive Problems

Well, I put my L Drive together and now it turns over but will not start?<br />What do you think it could be ( battery, ignition or what?)<br /><br />Thanks

 

[roscoe]

Re: L Drive Problems

Have to start with the basics to narrow it down.<br />1 check the kill switch.<br />2 compression<br />3 spark<br />4 fuel

 

[Marine Power]

Re: L Drive Problems

Those are all ok.<br />What next?

 

[peacekeeper6]

Re: L Drive Problems

make sure the chocke solnoid works, my l drive will not start cold without being choke all the way

 

[Marine Power]

Re: L Drive Problems

How do I check the chocke solnoid and where is it located?<br />Also my shifter is not working, do you know why it would not move?

 

[peacekeeper6]

Re: L Drive Problems

might be a seized lower unit, check the shift screw. choke solnoid is located between the carbs, a little roud thing with a steel cylinder going into it. operates both chokes.