Phatty5BMW
New Member
- Jun 9, 2018
- 4
- Boat Info
- Srv 207
- Engines
- Mercruiser 260
Long time lurker, first time poster! You guys/gals are amazing but I am completely stumped. Help!
I'll try and be as descriptive as I can, sorry for the long post!
boat= 79 Sea ray srv207 bowrider.
I've had this issue for 3 years now but uncommonly similar in ways.
It had a merc 228 with logs. I started getting water in my cylinders at about 1500 hours on the engine. Compression test was fair but the boat was under powered anyway. I did the acetone test on the logs and came up within range but a little weak. I figured the headgasket was toasted so I decided to empower anyways. (Tore that engine apart besides normal wear and tear still didnt see an issue)
Bought a marine 350 with vortec heads, brand new reman, edelbrock marine intake and edelbrock 1409 carb.
Swapped everything over and broke it in, with the old log manis, seemed to be fine, no water intrusion. About 2 hours or so into actually being on the water my outdrive took a turn for the worst (irrelevant to my issue)
I got a different drive (got stiffed because the new one was for a 6 cylinder so the ratio was wrong) so anyways back to the water I went, engine got a little warmer than normal (obviously)but nothing concerning, never went past 190 but I went and pulled it out.
then that's where it all started.
water in the cyls.
pulled the logs, still leaking from the one side, and a little from the other, primarily the center cyls.
bought a parts boat for cheap so I had enough parts for a center rise conversion.
center rise conversion completed all buttoned up. Ran it on muffs, kept checking the dipstick, all "looked" good and well. Took it out to our campsite right on the river, fired it up again for good measures when we got there, all was fine.
took it to the ramp and wouldn't turn over for crap.
back to the site I went, trying to figure that out, pulled plugs and low and behold cyl 3&5 water. Engine was hydrolocked. "Oil" was drained, with more chocolate milk/water than oil.
got it all freed back up without plugs and fogging oil, fresh oil and seafoam and cranked it over a while to get some fresh dispersed with the seafoam.
purchased brand new mercruiser manis/risers. Just put them on today, ran for a few on muffs to get it warm to do yet another oil change. Drained, and milk.
went and got 2 new filters do so another 2 changes for good insurance and low and behold MORE WATER! All on muffs!
cyl 3&5 primarily.
I've literally replaced EVERYTHING! I honestly dont even know where to look anymore!?
will be doing a compression and leak down test tomorrow but honestly I'm completely stumped and about 4k into this damn engine! Should have just bought another boat!
I'll try and be as descriptive as I can, sorry for the long post!
boat= 79 Sea ray srv207 bowrider.
I've had this issue for 3 years now but uncommonly similar in ways.
It had a merc 228 with logs. I started getting water in my cylinders at about 1500 hours on the engine. Compression test was fair but the boat was under powered anyway. I did the acetone test on the logs and came up within range but a little weak. I figured the headgasket was toasted so I decided to empower anyways. (Tore that engine apart besides normal wear and tear still didnt see an issue)
Bought a marine 350 with vortec heads, brand new reman, edelbrock marine intake and edelbrock 1409 carb.
Swapped everything over and broke it in, with the old log manis, seemed to be fine, no water intrusion. About 2 hours or so into actually being on the water my outdrive took a turn for the worst (irrelevant to my issue)
I got a different drive (got stiffed because the new one was for a 6 cylinder so the ratio was wrong) so anyways back to the water I went, engine got a little warmer than normal (obviously)but nothing concerning, never went past 190 but I went and pulled it out.
then that's where it all started.
water in the cyls.
pulled the logs, still leaking from the one side, and a little from the other, primarily the center cyls.
bought a parts boat for cheap so I had enough parts for a center rise conversion.
center rise conversion completed all buttoned up. Ran it on muffs, kept checking the dipstick, all "looked" good and well. Took it out to our campsite right on the river, fired it up again for good measures when we got there, all was fine.
took it to the ramp and wouldn't turn over for crap.
back to the site I went, trying to figure that out, pulled plugs and low and behold cyl 3&5 water. Engine was hydrolocked. "Oil" was drained, with more chocolate milk/water than oil.
got it all freed back up without plugs and fogging oil, fresh oil and seafoam and cranked it over a while to get some fresh dispersed with the seafoam.
purchased brand new mercruiser manis/risers. Just put them on today, ran for a few on muffs to get it warm to do yet another oil change. Drained, and milk.
went and got 2 new filters do so another 2 changes for good insurance and low and behold MORE WATER! All on muffs!
cyl 3&5 primarily.
I've literally replaced EVERYTHING! I honestly dont even know where to look anymore!?
will be doing a compression and leak down test tomorrow but honestly I'm completely stumped and about 4k into this damn engine! Should have just bought another boat!