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  1. K

    Lower shift cable kit question

    I am in the process of replacing the lower shift cable on an alpha one gen 2 drive. In the cable kit, part no. 8M0176525, there are two plastic cable conduits - one about 3/4" long and the other is about 3-1/2" long. I believe my application uses the shorter part and it installs from inside...
  2. K

    5.7 EFI stalls when warm and shifting into gear

    Engine serial no. 0K007751 350 TBI engine. I recently replaced the engine due to zero compression in cylinders 3 & 5 due to fire-slotting of the block and head. I have the base timing set at 8° per the service manual. When I leave the dock, it is all fine. The problem occurs when the engine...
  3. K

    Throttle cable adjustment dimension 5.7 EFI

    What is the dimension between the barrel and the throttle cable end on a Mercruiser 5.7 EFI? Is the dimension from the barrel hole to the hole in the cable end or some other feature on the end of the cable?
  4. K

    350 EFI Intake manifold gasket question

    There is a raised portion around the ports with a red coating. The gaskets are not labeled as to which side goes toward the head. Is it critical? Should they be installed raised portions toward the manifold or the head? I am thinking raised portion to the manifold so the gaskets sit flat on...
  5. K

    Assembling exhaust manifolds, risers and elbows - Loctite 510?

    The Mercruiser service manual #24 (for the 5.0 and 5.7 engines) says to use Loctite 510 around all holes in the riser/elbow gaskets. There was no evidence of any sealer when I took them apart to test them for leaks. I have Loctite 515 which is very similar. Should I use it or assemble them dry?
  6. K

    1997 Mercruiser 5.7 EFI blown head gasket

    On the way in from boating this afternoon, my boat began to lose power and I could tell that it had a bad misfire. After getting it home, I did a compression test and below are the results: 1: 170 psi 2: 165 psi 3: 0 psi 4: 160 psi 5: 0 psi 6: 160 psi 7: 150 psi 8: 145 psi, 150 psi wet after...
  7. K

    Cracked trailer fender

    The curbside fender on my boat trailer has a stress crack. The only thing I can think would have caused this issue is a tire that is out of balance causing vibration that eventually caused the fender to crack. Typically trailer tires aren't balanced but I think I may have all four trailer...
  8. K

    Fabricating a new transom for a 14 foot Cadillac aluminum boat

    The inner and outer wood has rotted away. There was a 3/4" piece of plywood on the inside of the aluminum and 1/2" on the outside based on the amount of exposed portion of the bolts. I am going to fab up new transom pieces using exterior grade plywood and I initially thought about coating it...
  9. K

    Gear oil check valve seal Alpha 1 gen 2 drive

    I have a small gear oil leak in my Alpha 1 gen 2 drive that has been a real pain to locate. I noticed it last fall as a small spot on the driveway the size of a quarter. The anode on the front of the drive was stained with oil. It was blue/green so I know it's gear oil. I pulled the drive...
  10. K

    1958 Evinrude 7-1/2 Fleetwin carburetor overhaul

    I'm in the process of overhauling the carburetor on a 1958 Evinrude 7-1/2. I purchased carburetor kit #439071 from my local dealer. There are some parts in the kit that were not in the carburetor I disassembled - there are some translucent plastic washers which I believe go between the packing...
  11. K

    Mercruiser 5.7 EFI Alternator bracket keeps cracking

    Background information: Three years ago, I noticed my volt meter at 12 volts while cruising. The issue was a broken terminal on the lead to the battery. Fortunately, there was no damage to the alternator. I noticed the mounting bracket was cracked through and the alternator was vibrating. I...
  12. K

    Bennett Trim Tab system blows 20 A fuse

    I'm not sure where to post this - Moderators, please move to the appropriate forum as required. '97 Sea Ray 240 Sundancer. Yesterday, I was trimming the boat out and could not get the boat leveled. I shut the engine off and pressed one switch, then the other and could not hear the pump run. The...
  13. K

    Mercruiser 5.7 EFI slipping/over revving

    I was out on Lake Michigan this afternoon and the waves were about 1' and my boat was running fine. The waves built to 2-3', then 3-4' so I headed back. My engine over revved and it acted like it was slipping. At 3200 RPM I was only running about 10 MPH. It typically cruises at 24MPH at that...
  14. K

    '97 Mercruiser 5.7 EFI Stumbles/backfires on acceleration after 45 mins of running

    1997 Mercruiser 5.7 EFI - TBI engine, just shy of 1300 hours on it. This is not a Vortec engine. It recently developed a hesitation/bog/backfire upon acceleration. It occurs after the boat has been running for 45 minutes to an hour. At low speed, I can feel the engine running mildly rough (no...
  15. K

    '97 Sea Ray Sundancer fuel pickup fitting removal

    '97 240 Sundancer, 5.7 EFI. When the fuel level drops to 7/8- 3/4, the engine runs rough at idle and below 1200 RPM. When accelerating from idle, the engine runs rough and backfires. Once it planes off, it runs fine. I filled the fuel tank, everything was fine until the fuel level dropped below...
  16. K

    Boatinfo Mercruser service manual links not working

    I attempted to access the boatinfo Mercruiser service manuals and all the links are dead. Anyone have any information on if they were moved?
  17. K

    Lower shift cable or ???

    1997 Sea Ray 240 Sundancer, 1225 hours. 5.7 EFI Alpha 1 gen 2 drive. The engine will randomly stall when shifting. Sometimes two weeks or more between stallings. Today, it stalled while shifting and the shifter lever didn't feel right. I watched the shift cables at the shift plate and when...
  18. K

    AC Delco MR43T Spark Plug question

    I thought I'd replace the spark plugs in my 1997 5.7 EFI since they have 556 hours on them. The Mercruiser parts manual stated AC Delco MR43T so I bought eight at the parts store. I started to replace them and when I pulled the first one out, the existing plug was a half-inch shorter than the...
  19. K

    Clarification on position of shift cable bellows

    I'm almost finished replacing my alpha one gen 2 shift cable bellows. Less than 3 years on a Sierra part that my local dealer said was as good as Merc's part... right.... This time, I used a OEM bellows. The Mercruiser shop manual states: Be sure bellows is in the relaxed position 2-1/2" from...
  20. K

    Replacing corrugated plastic crankcase vent hose 5.7 EFI

    I am going to replace the corrugated plastic crankcase vent hoses from the valve covers to the flame arrester since they do not seal properly on the fittings and the oil eventually accumulates on the valve covers. I know that it must be oil resistant but is there any other specs the hose should...
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