Author Topic: Just another day at the shop  (Read 40381 times)

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Offline MikeB

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Re: Just another day at the shop
« Reply #100 on: September 23, 2017, 10:51:45 PM »
I was wondering how he got back to the dock. Maybe engine exhaust through the open gearcase pushed him?  ;)


Must have wanted a cheap, quick jet conversion

Offline Plugcheck

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Re: Just another day at the shop
« Reply #101 on: September 24, 2017, 07:28:10 AM »
Time for my yearly update at the shop. Been doing several fuel tank replacements, engine re-powers, the usual stuff.

This boat came in sometime last week. Looked like a bomb went off inside the gearcase, it done blowed up! Punched a hole in the side. I opened it up and there was metal debris everywhere inside. YUMMY!
.                                                                                                    I can't say I've ever seen lower unit lube turned into black grease.  Must not have seen regular maintenance?
Michael
1979 CVZ-18 388 CI Vortec Mouse
1980 CVX-16SS 140 Mercruiser
1979 CVX-16 Johnson 175
2002 Bennington 2275CC 90 Mercury
1985 Intimidator project
1989 Lowe 200 Redneck fishin Toon
2001 Godfrey Sweetwater pontoon 115 Rude

Offline Rich_V174SS

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  • 1967 V174 Crestflite SuperSport Modified
Re: Just another day at the shop
« Reply #102 on: September 24, 2017, 10:40:00 AM »
Quote
I can't say I've ever seen lower unit lube turned into black grease.  Must not have seen regular maintenance?

Prop shaft was bent and twisted, so they hit something at some point and kept using it. Some damage must have been done internally that just escalated through continued use.
1967 V174 Crestflite SuperSport Modified
1987 Mercruiser 190 3.7LX/Alpha One

1970 V176 Swinger
1983 Mercury 115

Offline 84carlson

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Re: Just another day at the shop
« Reply #103 on: September 24, 2017, 10:45:06 AM »
So whats a better outboard Mercury or Evinrude Etec?





Offline Rich_V174SS

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Re: Just another day at the shop
« Reply #104 on: September 24, 2017, 11:56:35 AM »
So whats a better outboard Mercury or Evinrude Etec?

I'm not up on the current Mercs so my answer would be biased seeing as I work for an Evinrude E-Tec dealer. But either will fail just like anything that is abused through usage.

- my politically correct answer for the day. ;-)
1967 V174 Crestflite SuperSport Modified
1987 Mercruiser 190 3.7LX/Alpha One

1970 V176 Swinger
1983 Mercury 115

Offline Rich_V174SS

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Re: Just another day at the shop
« Reply #105 on: June 23, 2018, 08:39:49 PM »
This got towed to our shop earlier last week. The general consensus is he hit something. He even managed to crack his transom all across the top edge from one side to the other.
1967 V174 Crestflite SuperSport Modified
1987 Mercruiser 190 3.7LX/Alpha One

1970 V176 Swinger
1983 Mercury 115

Offline Hyperacme

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Re: Just another day at the shop
« Reply #106 on: June 23, 2018, 08:56:04 PM »
OUCH !

Offline David CVX-16

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Re: Just another day at the shop
« Reply #107 on: June 23, 2018, 11:28:38 PM »
Looks like the hit to the lower unit was quite high preventing the motor to tilt fast enough to absorb the shock, hence the transom absorbed enough of the shock to crack it.
David
87' CVX-16, 85' 115 HP Johnson, 58.8 MPH GPS w/ 23" SRX Prop

Offline GIL_CV21

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Re: Just another day at the shop
« Reply #108 on: June 24, 2018, 06:34:29 AM »
JB weld lol

Offline Rich_V174SS

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Re: Just another day at the shop
« Reply #109 on: June 24, 2018, 08:02:11 AM »
Looks like the hit to the lower unit was quite high preventing the motor to tilt fast enough to absorb the shock, hence the transom absorbed enough of the shock to crack it.

He was cruising at a good speed and hit a submerged rock/reef. Trim units don't tilt on impact, even though they claim they're supposed to. The prop/gearcase is what's pushing the boat and when there's an impact that gearcase is going to get damaged no matter what and damage will most often transfer to the transom. Here's an instance of a light impact, the gearcase is still going to be ruined.
1967 V174 Crestflite SuperSport Modified
1987 Mercruiser 190 3.7LX/Alpha One

1970 V176 Swinger
1983 Mercury 115

Offline Rich_V174SS

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Re: Just another day at the shop
« Reply #110 on: November 03, 2018, 09:31:39 AM »
Here's a new one. An new Evinrude E-Tec 200 with only 70-something hours on it. Blown cylinder and engine seized. The top of the #5 piston and inner surface of the cylinder head are cratered like the moon. The customer was just driving out of the no-wake channel when it seized up so he had to be towed back in to port.
1967 V174 Crestflite SuperSport Modified
1987 Mercruiser 190 3.7LX/Alpha One

1970 V176 Swinger
1983 Mercury 115

Offline Hyperacme

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Re: Just another day at the shop
« Reply #111 on: November 03, 2018, 10:15:20 AM »
Are those pieces of ring on top of piston ?

Offline Rich_V174SS

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Re: Just another day at the shop
« Reply #112 on: November 03, 2018, 10:30:38 AM »
Are those pieces of ring on top of piston ?

I think so. But it's so strange to have happen to an engine with so few hours on it. There's one small fragment stuck to the head of the #3 piston too. One thing I've seen happen to several of these engines is the reed valves tend to break and get ingested but usually nothing bad comes from that and I just replace the broken reeds and send them on their way. But something catastrophic happened here.

I believe BRP will be sending us a replacement power head covered under warranty.
« Last Edit: November 03, 2018, 10:33:01 AM by Rich_V174SS »
1967 V174 Crestflite SuperSport Modified
1987 Mercruiser 190 3.7LX/Alpha One

1970 V176 Swinger
1983 Mercury 115

Offline melinprov

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Re: Just another day at the shop
« Reply #113 on: November 23, 2018, 09:38:39 AM »
one of my pending projects soon, good read Thanks! ( or tanks? )

Offline Rich_V174SS

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Re: Just another day at the shop
« Reply #114 on: November 23, 2018, 07:14:55 PM »
one of my pending projects soon, good read Thanks! ( or tanks? )

I don't envy your task. I must have replaced about 7 or 8 tanks this season at the shop. ;-)
1967 V174 Crestflite SuperSport Modified
1987 Mercruiser 190 3.7LX/Alpha One

1970 V176 Swinger
1983 Mercury 115

Offline Rich_V174SS

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Re: Just another day at the shop
« Reply #115 on: December 01, 2018, 10:08:29 AM »
Ever see a piston explode into shrapnel? This is another first for me.
The engine is a newer Evinrude G2 300, the number 6 piston shattered and seized the the crank. There was one small hole in the side of the block about the size of a quarter from the debris. When I pulled the intake and reed plate off I was treated to a pile of shrapnel inside. BRP will be replacing the power head under warranty I believe.
1967 V174 Crestflite SuperSport Modified
1987 Mercruiser 190 3.7LX/Alpha One

1970 V176 Swinger
1983 Mercury 115

Offline Hyperacme

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Re: Just another day at the shop
« Reply #116 on: December 01, 2018, 10:59:07 AM »
Thought it was weird getting shrapnel in intake ?
But there fuel injected, so guessing intake is wide open to reed block.

Offline Rich_V174SS

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Re: Just another day at the shop
« Reply #117 on: December 01, 2018, 11:32:24 AM »
Thought it was weird getting shrapnel in intake ?
But there fuel injected, so guessing intake is wide open to reed block.

It's direct injection, the injectors spray into the tops of the cylinder heads. But whether it's direct injection or throttle-body injection it's all the same between the reed plate and the cylinders. They're all open through the crank on 2-stroke engines but the cylinders are isolated from each other.
« Last Edit: December 01, 2018, 11:34:17 AM by Rich_V174SS »
1967 V174 Crestflite SuperSport Modified
1987 Mercruiser 190 3.7LX/Alpha One

1970 V176 Swinger
1983 Mercury 115

Offline Hyperacme

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Re: Just another day at the shop
« Reply #118 on: December 01, 2018, 02:33:05 PM »
OK .. Understand what your saying ..
What a mess !