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Recent content by eclipseguy

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    Lower unit bearing retainer nut

    My 40hp 4 cyl. Has a plastic retainer nut for the lower unit carrier. Is offered in metal?? 100 Lbs seems much on a plastic nut... I had on in metal that I cant find not sure if it was for this drive. Thanks guys
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    2004 Mercruiser 3.0L Exhaust Riser corrosion

    Oh ok.. I feel stupid now! I use the same method to prove a leaking intake or exhaust valve with brake cleaner.
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    Unsolved Mystery MerCruiser 1999 TBI 5.7L V8

    If the problem started after work was done have we doubled checked the work? It would seem strange a "new" problem pops up after new work was done. I like the KISS method. Keep It Simple Stupid
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    2004 Mercruiser 3.0L Exhaust Riser corrosion

    Can someone explain the acetone test?
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    Mercruiser 5.0L MPI Not Starting, I was driving the boat at a slow pace and it slowly stalled/stopped

    Looking at the plug and your fuel pressures. I will assume you were running lean and or too much timing. Once you pull the head I am sure you will find piston damage. Prob melted piston to the 1st ring. Also, you might find some burned exhaust valves, This may explain the overheat problem as...
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    orTrouble with no spark on 175 hp 2stroke Mercury.

    I tried without a dva troubleshooting my no start. Get the adapter... I bought the snap on DVA EEDMDVA Overview • Converts outboard marine, motorcycle and other small engine ignition pulse signals into DC voltage signals • Adaptor helps identify secondary ignition problems like failed individual...
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    Lower unit leaks...

    So what happened was. I was getting some water in the drive. I decided to reseal the carrier bearing housing since it was easy to get to. I broke the carrier getting the seals out. The carrier section that broke was where the seal near the prop. Put seals in it and some jb weld on the broke...
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    Low water trouble

    Do you have a fitting to flush the engine? If your engine doesn't have a t-stat or a poppit valve. I would run it and watch the flow from the pee hole.
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    Need a lower unit and no engine numbers Mercury 40hp 2 stoke 4 cyl mid 90s

    Every time a look up a OE part number I end using many different engine numbers to find the correct part. This engine is like someone built it from 10 different engines! I am looking to replace the lower unit on this. Looking at mercury parts online I see there is a difference in the shaft...
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    Mercury 40 HP 2 Stroke 4 Cyl. Oil is everywhere!

    This engine only had metal dowel pins. With no bolts from the intake to hold everything together even the blocks are drilled and taped for a bolt. I did finally took it out on the water after a starter issue. No more hard starts that looks like the boat turned into a freight train!! Power is...
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    3 cylinder 4 stroke 25 Efi fowling 2 lower plugs. Motor was transported in a horizontal position.The local Merc dealer threw up his hands after $600 l

    Is it fouled from oil or too much fuel? If the fuel is good on the new boat it could be oil getting into a place it shouldn't be in. If you took you car and turned it upside the oil with go to the forbidden areas via gravity. If it ran fine before the swap then it shouldn't be a engine prob...
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    Mercury 40 HP 2 Stroke 4 Cyl. Oil is everywhere!

    Just for fun question. The reason I did a rebuild was the reed block on 3 and 4 broke the dowel pin and moved so the rod hit the reed "stops". I bought a new reed block and the dowel hole in the engine block had a nice grove from the reed block moving around. Sometimes that engine did have a...
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    Mercury 40 HP 2 Stroke 4 Cyl. Oil is everywhere!

    I pulled the pump off with the line connected. About 24 hrs later oil started leaking out between the shaft and the seal. This problem has been bothering for so many years! I ordered a new pump since the org one is about 30 years old. Looks like the seal should be replaceable... Thank you guys...
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    Mercury 75hp 2 stroke 2006

    Here is a color code chart that I use. Most colors match with my merc. Or find a service manual. https://www.clrmarine.com/538.html
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    Mercury 40 HP 2 Stroke 4 Cyl. Oil is everywhere!

    I would rather try to fix it than replace but, I will keep in mind . Thank you
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