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    Prop for 22' Bayliner with MerCruiser 350

    I need a new prop for my 22 foot Bayliner deep v hull cuddy cabin. I hit a rock with the stainless steel prop, and I'm not able to get the numbers off of it. I have MerCruiser 350 engine, and a 55 gallon fuel tank. I'm not sure of the weight. Any suggestions?
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    Mercruiser 5.7l V8 Draco topaz starter motor wiring diagram/picture required.. Help!!

    Re: Mercruiser 5.7l V8 Draco topaz starter motor wiring diagram/picture required.. He This is a generic schematic for a starter & elec fuel pump.
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    timing cover questions

    Re: timing cover questions I've never seen the timing cover you have on the right. Have you checked the crank position sensor hole? If it's open you'll have a leak. It's located on the bottom left of the cover. Here's a picture of the inside of my timing cover, it gives 2 part numbers, one...
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    Merc 5.7LX Riser Extension Gaskets ... Which to use??

    I just got my 3" riser extensions, and I'm a little confused as to which gaskets to use & where. The manual shows a restrictor gasket on top, but the actual riser extension kit comes with open gaskets. Take a look at the screen shots. Originally I had open gaskets between my mainfold & my...
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    Trim Sender Replacement

    A few weeks ago, I noticed my trim up switch wasn't working. I looked around the drive and found the SB side trim wires were corroded and were hanging loose. I ordered a new set, and will be installing tonight hopefully. I haven't replaced them before ... is there anything special to it? Just...
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    Mercruiser Trim Switch Only Works w/ Boat in Water??

    I've been trying to troubleshoot an issue with my outdrive trim. With the boat on the trailer, only the trim down & trailer switches work. The trim up switch does nothing. With the boat in the water, all switches work normally. Any ideas?? The motor is a 1997 350, Vortec heads, SEI 116 (Alpha...
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    MerCruiser 350 Hard to start after running

    I was on the water for about an hour yesterday, pulled into a cove for some swimming & killed my engine. When I tried to fire it back up (about 1 hr later), it wouldn't turn over at first. I thought it was my batteries or starter ... checked the voltages, and they seemed normal (I charged them...
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    5.7 With Edelbrock 1409 Carb Throttle Linkage

    I have a Mercruiser 5.7 with a new Edelbrock 1409 Carb & a new Performer RPM intake. I'm connecting everything back up and before I go make a custom bracket for my throttle linkage, I'd like to see if anyone know of something I can use.
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    Mercruiser 350 Vacuum Advance??

    Got my new motor & Edelbrock carb all setup & working. There is a vacuum advance port on the carb, and I believe it's for an automotive distributor. What should I do with this port? Cap it? I circled it in the picture.
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    Anyone have a MerCruiser alignment tool? Near SE Mass/Cape Cod??

    I'm looking to rent/borrow a Mercruiser engine alignment tool. I live in southeastern Mass, close to Cape Cod. Just dropped in a 350, and need to get her ready for the summer. Thanks!
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    MerCruiser 350 Coupler Vibration - Video

    Just finishing up assembling my new 350 crate motor with a mixture of new & old parts. I mocked up the motor on a trailer and test ran it. Everything seemed OK except for the coupler. It doesn't seem to be "smooth." It seems to be bouncing around and vibrating. I posted a video, take a look. Is...
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    2010 GM 350 Engine Problems, Stalls, fuel delivery issue?

    Re: 2010 GM 350 Engine Problems, Stalls, fuel delivery issue? I'd take a look at this, I believe Don made it: Make sure the wiring to your starter is correct. And also check your fuel pump ground wire, and the purple wire at the alternator. Check to see if they're snug. I believe the...
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    5.7 Oil Leak at the Timing Cover

    I'm assembling a new 5.7 crate motor, and I was testing a new electric fuel pump when I noticed that oil started to leak from behind the balancer. I took a closer look, and noticed it leaking from the base of the timing cover. See the pic, the oil is coming out of the hole that is circled...
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    5.7 Recirculating Water Pump Pulley Wheel

    Re: 5.7 Raw Water Pulley Wheel Re: 5.7 Raw Water Pulley Wheel OK, here's an update. Using a straight edge, I measured how far off the pullies were from each other with the washers in place, and the Recirculating pump pulley was about 3/16" off of the other 3 pullies. Way too far in my opinion...
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    5.7 Recirculating Water Pump Pulley Wheel

    OK, I'm doing something wrong. I'm putting together a Mercruiser 5.7 from a GM Crate motor, and I've replaced my recirculating water pump with a brand new pump. The pulley wheel that I have from my old 5.7 bolts on fine, but it rubs against the pump when torqued down. Do I have the wrong pulley...
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    New 350 Block & Intake with Old Carb Issue

    Hey guys ... Just got a new 350 from GM with Vortec heads & a Vortec Performer RPM Intake from Edelbrock, and I'm just starting to put it together. I'd like to use my old carb if I could, but the Edelbrock Intake doesn't have the screw hole for the coil-spring enclosure for my carb. My old...
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    350 Replacement Options

    I have a 22' Bayliner and my 350 has low compression in 3 of the cylinders. I don't have the exact numbers in front of me, but on the port side of the motor one cylinder was around 35psi, and both of the adjacent cylinders were around 60psi. All other cylinders were good, around 150psi. I took...
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    Mercruiser 5.7 350 Where to Start??

    I know I'm probably looking at a rebuild / new block ... but wanted to get some opinions first. I've got a 1994-ish Mercruiser 5.7L V8 (350) and the compression is good in 6 of the cylinders (130psi - 140psi), but the 2 cylinders on the coupler end (I forget which cyl# they are) are about...
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    350 Ground Running Procedure

    I have my Mercruiser 350 5.7L out of my boat & on blocks. I'm not 100% sure on how to hook it up to run. I don't want to "experiment." Is there a how-to somewhere? If so, can someone send me a link. If not, how about a crash course? I think I have everything I need. Two fully charged...
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    MerCruiser 5.7L Install Dilemma

    Here's my situation: I bought Mercruiser 5.7L V8 (350) from a guy who owns a marine repair business for a good price, sold as-is. The motor seemed to be in mint condition, compression check showed around 120-130psi on all cylinders ... not great but OK. I ran it on the ground with water running...
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