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My boat is a 2004 175 Bayliner it has a 3.0 Mercruiser 135
My boat is a 2004 175 Bayliner it has a 3.0 Li Mercruiser 135 HP. When draining the oil for winterizing for the end of the season the oil came out milky. I have 70 hours on the motor this year with no… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
Have a crack in outside of exhaust manifold on Mercruiser
Have a crack in outside of exhaust manifold on Mercruiser 3.0. Looked at block freeze plugs and all look good. Oil is a dark tan color, not white milky. What should I be looking for if I take off the … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a 84 Mercruiser engine (MCM 185) GM 3.8L 229 CID V6.
I have a 84 Mercruiser engine (MCM 185) GM 3.8L 229 CID V6. I recently found yellowish milky oil in the Bilge and found that it was on the dipstick as well. When running the yellowish oil is leaking o… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
Put muffs on out drive yesturday boat started didnt run well
Put muffs on out drive yesturday boat started didn't run well today saw milky oil on rear lower side of engine checked did stick and oil is a little milky… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I am thinking of buying a 1995 Rinker Vee 280 cabin cruiser
I am thinking of buying a 1995 Rinker Vee 280 cabin cruiser fixer upper. Anything you can tell me about about these boats? What should I be looking for? It has twin mercruiser 4.3L. Was used in fresh … read more
Noel Schembri
Noel Schembri
Marine mechanic
Diploma
1,766 satisfied customers
I have a mercruiser 5.7 liter V8 on a Sea Ray Sundeck 260.
I have a mercruiser 5.7 liter V8 on a Sea Ray Sundeck 260. Today the dipstick shows a brown milky residue so I suspect water in the engine. Can you tell be some possible causes for this I am taking it… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
2001 Sea Ray 240 Sundeck 5.7 Efi aplha one....winterized by
2001 Sea Ray 240 Sundeck 5.7 Efi aplha one....winterized by local dealer, took to lake for 1st time and had these issues. Pressurized water system won't work. I can hear the motor pumping constantly, … read more
davesoutboard
davesoutboard
owner
Associate Degree
1,570 satisfied customers
We have a V8 Mercuriser engine and it seems to be leaking water
We have a V8 Mercuriser engine and it seems to be leaking water from the block but we can't see any where the water is coming in nor does there appear to be any water in the oil dipstick. It also does… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a 2001 Maxum 2400 SCR with a 5.7 Mercruiser (250 hp)
I have a 2001 Maxum 2400 SCR with a 5.7 Mercruiser (250 hp) engine. did the winterizing as per my engine manual,when i changed the oil it looked as though it had water in it. Does this mean i have a c… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a Sea Ray Sundancer 270 with twin 5.7 mercruiser. The
I have a Sea Ray Sundancer 270 with twin 5.7 mercruiser. The starboard engine has water in all 8 cylinders. Any ideas where this would come from. If a head or gasket issue, I'd expect maybe 2 cylinder… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
i have a 2000 Maxum with the 5.7 (250 HP) merccruiser and took
i have a 2000 Maxum with the 5.7 (250 HP) merccruiser and took boat out yesterday and noticed oil/water mix in bottom of engine compartment. Then checked oil dipstick and same oil/water mix on dipstic… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I was out running my boat today and saw smoke coming from the
I was out running my boat today and saw smoke coming from the engine bay. So, I lifted the cover and saw a milky substance on the valve covers. Then I checked the oil and there was a milky substance a… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
I just started my 1993 mercruiser after the winter. When I
I just started my 1993 mercruiser after the winter. When I winterized, I ran anti-freeze through the engine then fogged it to put her to sleep. The boat started fine, and ran at idle for a bit before … read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
Got a 1996 230 sea ray with 5.7 mercruiser is that 260hp Doesnt
Got a 1996 230 sea ray with 5.7 mercruiser is that 260hp? Doesnt seem to be if so , and I got a little oil coming up the pcv line to air filter, any ideas. thanks… read more
Master Tech
Master Tech
Service Manager/Technician
Vocational, Technical or Trade Scho
1,167 satisfied customers
Good Morning! I need your help. Yesterday, I took my 24ft Searay
Good Morning! I need your help. Yesterday, I took my 24ft Searay out and within 10 minutes of cruising I experienced an abrupt decline in speed even though I did not touch the throttle. I then throttl… read more
Master Tech
Master Tech
Service Manager/Technician
Vocational, Technical or Trade Scho
1,167 satisfied customers
hi, i recently bought a boat and it has troubles running.
hi, i recently bought a boat and it has troubles running. the engine is a 4.3 mercruiser v-6. the boat is a 1991 sea-ray. the problem is that the engine will start up ,but i put it in gear the engine … read more
ROCKET
ROCKET
MASTER CERTIFIED TECH
Vocational, Technical or Trade Scho
426 satisfied customers
hey i have 2007 3.0 135hp mercruiser. it started spitiing out
hey i have 2007 3.0 135hp mercruiser. it started spitiing out mixture of oil and water from around air filter, did not loose oil pressure or over heat, marina has looked cannot see anyvisible cracks f… read more
The Man on the Dock
The Man on the Dock
Marina Owner, Operator
Vocational, Technical or Trade Scho
74 satisfied customers
I have a Mercruiser 5.7. Checked oil and obviosly have water
I have a Mercruiser 5.7. Checked oil and obviosly have water in my oil (milky chocolate color at dipstick). Changed oil & filter for the heck of it and no change. While running the engine at the dock … read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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