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#1
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HELP!! I need help with a noisy and whiny Mercruiser outdrive
A friend of mine just bought a 1989 18 feet Stingray bowrider with a
3.0 liter inboard/outboard Mercruiser engine and corresponding Mercruiser outdrive. The engine starts and runs great and is quiet. My question is this. When the boat is in neutral or at operating speed, the outdrive is noisy and seems to whine whether at idle or when running in any gear. You can lay in the bottom of the boat and really hear it well. I changed the water pump and housing and all associated o-rings and seals and also the lower drive shaft seal where the drive shaft inserts into the upper unit. I found water to be in the foot before doing this and subsequently replaced that foot oil as well. The outdrive ratchets, in my opinion, a little more than it should when engaging in drive or reverse. My friend said that she could hear her boat as she walked toward in on the dock while the boat was moored and in neutral. She said that it was very distinctive. The boat runs really well and has no temp or oil pressure issues. She gets out of the hole really well, with no hesitation. Does anyone have any idea what may be causing this "noisy" and "whiney" outdrive? Also, what can I do to fix the problem? I am very strong mechanically and have the service manual for the engine and outdrive. I would appreciate any help that anyone could offer. Thanks, Dave |
#2
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HELP!! I need help with a noisy and whiny Mercruiser outdrive
Gimbal bearing?
"D.B." wrote in message ... A friend of mine just bought a 1989 18 feet Stingray bowrider with a 3.0 liter inboard/outboard Mercruiser engine and corresponding Mercruiser outdrive. The engine starts and runs great and is quiet. My question is this. When the boat is in neutral or at operating speed, the outdrive is noisy and seems to whine whether at idle or when running in any gear. You can lay in the bottom of the boat and really hear it well. I changed the water pump and housing and all associated o-rings and seals and also the lower drive shaft seal where the drive shaft inserts into the upper unit. I found water to be in the foot before doing this and subsequently replaced that foot oil as well. The outdrive ratchets, in my opinion, a little more than it should when engaging in drive or reverse. My friend said that she could hear her boat as she walked toward in on the dock while the boat was moored and in neutral. She said that it was very distinctive. The boat runs really well and has no temp or oil pressure issues. She gets out of the hole really well, with no hesitation. Does anyone have any idea what may be causing this "noisy" and "whiney" outdrive? Also, what can I do to fix the problem? I am very strong mechanically and have the service manual for the engine and outdrive. I would appreciate any help that anyone could offer. Thanks, Dave |
#3
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HELP!! I need help with a noisy and whiny Mercruiser outdrive
On Tue, 30 Mar 2004 01:35:34 +0000, D. wrote:
A friend of mine just bought a 1989 18 feet Stingray bowrider with a 3.0 liter inboard/outboard Mercruiser engine and corresponding Mercruiser outdrive. The engine starts and runs great and is quiet. My question is this. When the boat is in neutral or at operating speed, the outdrive is noisy and seems to whine whether at idle or when running in any gear. You can lay in the bottom of the boat and really hear it well. Since you have the manuals, I assume you know the upper unit of the outdrive is spinning even in neutral (I didn't know this when this happened to me). I had a whiney outdrive, and it turned out it was the gears in the upper outdrive. Another culprit could be the universal joint, also in the upper outdrive. Lloyd Sumpter (previously) "Valkyrie" Campion 18 |
#4
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HELP!! I need help with a noisy and whiny Mercruiser outdrive
Thanks Lloyd!!
Any idea what she is looking at spending to get this fixed, also, is this something that can leave her stranded or is it just an annoyance? Thanks, Dave On Mon, 29 Mar 2004 18:30:24 -0800, "Lloyd Sumpter" wrote: On Tue, 30 Mar 2004 01:35:34 +0000, D. wrote: A friend of mine just bought a 1989 18 feet Stingray bowrider with a 3.0 liter inboard/outboard Mercruiser engine and corresponding Mercruiser outdrive. The engine starts and runs great and is quiet. My question is this. When the boat is in neutral or at operating speed, the outdrive is noisy and seems to whine whether at idle or when running in any gear. You can lay in the bottom of the boat and really hear it well. Since you have the manuals, I assume you know the upper unit of the outdrive is spinning even in neutral (I didn't know this when this happened to me). I had a whiney outdrive, and it turned out it was the gears in the upper outdrive. Another culprit could be the universal joint, also in the upper outdrive. Lloyd Sumpter (previously) "Valkyrie" Campion 18 |
#5
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HELP!! I need help with a noisy and whiny Mercruiser outdrive
Hi James,
According to the repair receipts, the gimble bearing was replaced by a reputable mechanic 2 years ago. Any other suggestionions? Thanks, Dave On Tue, 30 Mar 2004 01:53:11 GMT, "JAMES IRVINE" wrote: Gimbal bearing? "D.B." wrote in message .. . A friend of mine just bought a 1989 18 feet Stingray bowrider with a 3.0 liter inboard/outboard Mercruiser engine and corresponding Mercruiser outdrive. The engine starts and runs great and is quiet. My question is this. When the boat is in neutral or at operating speed, the outdrive is noisy and seems to whine whether at idle or when running in any gear. You can lay in the bottom of the boat and really hear it well. I changed the water pump and housing and all associated o-rings and seals and also the lower drive shaft seal where the drive shaft inserts into the upper unit. I found water to be in the foot before doing this and subsequently replaced that foot oil as well. The outdrive ratchets, in my opinion, a little more than it should when engaging in drive or reverse. My friend said that she could hear her boat as she walked toward in on the dock while the boat was moored and in neutral. She said that it was very distinctive. The boat runs really well and has no temp or oil pressure issues. She gets out of the hole really well, with no hesitation. Does anyone have any idea what may be causing this "noisy" and "whiney" outdrive? Also, what can I do to fix the problem? I am very strong mechanically and have the service manual for the engine and outdrive. I would appreciate any help that anyone could offer. Thanks, Dave |
#6
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HELP!! I need help with a noisy and whiny Mercruiser outdrive
Cost me $2000 (CDN) for a rebuilt upper drive. If it's the universal, you may get by at least for a while. Gears, I'd fix right away. On Tue, 30 Mar 2004 02:53:01 +0000, D. wrote: Thanks Lloyd!! Any idea what she is looking at spending to get this fixed, also, is this something that can leave her stranded or is it just an annoyance? Thanks, Dave |
#7
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HELP!! I need help with a noisy and whiny Mercruiser outdrive
Mercruiser recently lowered prices on reman. A1 and Gen2 drives. I suspect
they are trying to kill the competition from copy cat drive makers and local rebuilders. Jim "Lloyd Sumpter" wrote in message ... Cost me $2000 (CDN) for a rebuilt upper drive. If it's the universal, you may get by at least for a while. Gears, I'd fix right away. On Tue, 30 Mar 2004 02:53:01 +0000, D. wrote: Thanks Lloyd!! Any idea what she is looking at spending to get this fixed, also, is this something that can leave her stranded or is it just an annoyance? Thanks, Dave |
#8
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HELP!! I need help with a noisy and whiny Mercruiser outdrive
Last year my 200 Merc made a "clunk" several times when starting to
accelerate. My brother said he thought it was a skip in the engine. (I didn't think so, I thought it was like the transmission slipping a tooth or a dog). Just a couple of miles out, I thought I heard kind of a "scraping" noise. My brother didn't hear anything. My mother (78) thought she too heard something "funny". I decided to turn around and we didn't make it back to the launch before the gearbox went crunch. It not only went crunch but something almost scraped all the way through the case. I thought I could find a replacement anywhere for $500. Wrong! I could find one anywhere for $2000. It took me two days across several states (FL, AL, GA) to finally find one for $500, which continued to leak and finally returned it for a $1000 one which I'm happy with. (BTW, if you are in the Pensacola area I'll recommend a good mechanic.) The moral of this story is FIX it or at least look at it. (Also, don't trust anyone who doesn't hear any problem but has no financial interest in it, especially your Brother!) If it breaks you could be in for many times the expense that you have now. LD "D.B." wrote in message ... A friend of mine just bought a 1989 18 feet Stingray bowrider with a 3.0 liter inboard/outboard Mercruiser engine and corresponding Mercruiser outdrive. The engine starts and runs great and is quiet. My question is this. When the boat is in neutral or at operating speed, the outdrive is noisy and seems to whine whether at idle or when running in any gear. You can lay in the bottom of the boat and really hear it well. I changed the water pump and housing and all associated o-rings and seals and also the lower drive shaft seal where the drive shaft inserts into the upper unit. I found water to be in the foot before doing this and subsequently replaced that foot oil as well. The outdrive ratchets, in my opinion, a little more than it should when engaging in drive or reverse. My friend said that she could hear her boat as she walked toward in on the dock while the boat was moored and in neutral. She said that it was very distinctive. The boat runs really well and has no temp or oil pressure issues. She gets out of the hole really well, with no hesitation. Does anyone have any idea what may be causing this "noisy" and "whiney" outdrive? Also, what can I do to fix the problem? I am very strong mechanically and have the service manual for the engine and outdrive. I would appreciate any help that anyone could offer. Thanks, Dave |
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