No Oil Pressure(?)

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groberts4
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Re: No Oil Pressure(?)

Post by groberts4 »

Update: My Cobalt's been in the shop since February 15th, so over a month. They've eliminated simple fixes like the sender, the oil pump, or other things. Their current analysis says it's a bearing that's preventing the pump from pumping. So the engine has to go out to a marine engine rebuilder to be taken apart and see how much damage this shot bearing has caused, and repair, rebuild, or replace all parts affected. No estimate on cost or timing, just "this will take some time and it's a major job". This engine was rebuilt by Jasper Marine just three years ago, probably hasn't got more than 20-30 hours on it.
2006 262 w/ Volvo Penta 8.1L @ 375hp
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billk2632
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Re: No Oil Pressure(?)

Post by billk2632 »

Hate to hear, was hoping it would be an easier fix. Will Jasper help?
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groberts4
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Re: No Oil Pressure(?)

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Update: after one month in the shop I finally heard from the service manager that they had exhausted all options, and realized they needed a special tool to test the pump system (suspect somewhere in the drive system for the pump). They then came back and said probably a bearing, will need to send out to machine shop, hope engine is not ruined. The next day (today) I got a call saying they'd called all around, no one could even look at it for at least a month, so you have to replace the entire engine. $13,000 estimate P&L. I approved it because I've been 33 days without a boat during the most beautiful weather of the year and I have gone insane. Also, I have no choice.
PS: The engine that failed was a recently rebuilt engine from Jasper Marine ($14,000 P&L). It was installed in March 2021 following our hard freeze, so it was right at three years old and had maybe 25 hours on it. Jasper's warranty is two years. So now I'll have another rebuilt Jasper engine. However, this time I will drive it til I run out of gas money. If this new engine's as weak as the last one, at least it's going to fail during the warranty period.
2006 262 w/ Volvo Penta 8.1L @ 375hp
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billk2632
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Re: No Oil Pressure(?)

Post by billk2632 »

I would run the pi$$ out of it as it sounds like the failure in the other engine was likely a rebuild issue, just didn't show up in the warranty. Maybe you already have, but I would talk to Jasper about some consideration -- you are buying your second engine from them in what 3yrs? Maybe at least give you something for the old one - which they would likely fix and sell again.
I think you said insurance covered the first one - freeze damage - any help there with this one?
Honestly it would hurt me to dump that kind of $$ in an engine -- but if I had your boat with an 8.1 I probably would do it. they are not making those things anymore! Sure a new Cobalt you can get a 430hp 6.2, but it's not a big block like yours.

Hopefully a few nice days on the water will leave the sting of this your wake!
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groberts4
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Re: No Oil Pressure(?)

Post by groberts4 »

Appreciate the comments, billk. So here's an update for you: I got the boat back with the new (rebuilt) Jasper Marine engine and it ran great - for about 5 hours. After carefully observing the break-in time and then running it around the lake at varying speeds I got a vicious knocking sound - about 5 hours into this new (rebuilt) motor. I called the shop and let them listen to the sound over my phone and they said bring it in right now. A week later they notified me: engine blown, sending off to Jasper, new one will be here in 3 weeks. So now I wait patiently for another Jasper Marine rebuilt engine to put into my Cobalt. And cross my fingers that third time's a charm.
This kind of information deserves a significant post of its own but I think I'll wait till I get my boat back :-)
2006 262 w/ Volvo Penta 8.1L @ 375hp
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AsLan7
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Re: No Oil Pressure(?)

Post by AsLan7 »

.
Way to stay patient Gs4. As we say these are 1st world problems. Frustrating though. Keep us posted.
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jhnmdahl
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Re: No Oil Pressure(?)

Post by jhnmdahl »

That's terrible luck. I've heard good things about Jasper engines, but your string of bad luck makes me wonder how good their quality control really is, or if the installer's not doing the best job getting things set up right.
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Re: No Oil Pressure(?)

Post by jhnmdahl »

groberts4 wrote: Tue Mar 19, 2024 4:38 pm Update: after one month in the shop I finally heard from the service manager that they had exhausted all options, and realized they needed a special tool to test the pump system (suspect somewhere in the drive system for the pump). They then came back and said probably a bearing, will need to send out to machine shop, hope engine is not ruined. The next day (today) I got a call saying they'd called all around, no one could even look at it for at least a month, so you have to replace the entire engine. $13,000 estimate P&L. I approved it because I've been 33 days without a boat during the most beautiful weather of the year and I have gone insane. Also, I have no choice.
PS: The engine that failed was a recently rebuilt engine from Jasper Marine ($14,000 P&L). It was installed in March 2021 following our hard freeze, so it was right at three years old and had maybe 25 hours on it. Jasper's warranty is two years. So now I'll have another rebuilt Jasper engine. However, this time I will drive it til I run out of gas money. If this new engine's as weak as the last one, at least it's going to fail during the warranty period.
I agree that Jasper should be looking at cutting you a break on the new engine, but I think I would expect the installer/reseller to be automatically advocating on your behalf with Jasper given the low hours on the last engine. Please keep us posted on how this resolves.
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Re: No Oil Pressure(?)

Post by NautiWeasel »

Not sure what happened to your first rebuild, and doubtful any one of us will, since it wasn't disassembled by your local shop. With the latest rebuild crapping out too, it makes me wonder if it's a rebuilt parts quality issue. Not quite the same, but similar, in that I know a lot of hobby or home engine builders are more frequently running into wiped cam lobes. This can be due to improper break in done when the engine is initially fired up, or just from a lack of quality materials used to build the camshafts. Either way, it seems to happen fairly frequently as of late.

Either way, you deserve some sort of compensation for the frequency of this problem, and how quickly it is happening (low hours). All of this together should show that it isn't you causing the issue, and it's either the shop installing, or the engine builder (rebuilders) themselves. Hopefully they get this settled for you before the season is over.
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groberts4
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Re: No Oil Pressure(?)

Post by groberts4 »

Hey billk - I've got an update that will blow your mind: about a month ago the guys at Rinker finished swapping out the old engine, installed a new (Jasper Marine rebuilt) and I was a happy camper - for 5 hours of boating time. I minded the hours of break-in time, had some fun, and a couple of weeks after getting the "new" engine back it starting banging hard - like a push rod up against the valve cover or something. I played the soundtrack for the Rinker guys and they had me bring the boat right in. Their lead mechanic listened for about 5 seconds and shook his head, said "It's deep". Bottom line: another bad Jasper Marine engine. So now we have a NEW "new" one on order, will be here 5/21. So I'll be on my third Jasper Marine rebuilt Volvo Penta 8.1L in as many months. At least this time the replacement engine and labor is covered by the warranty.
Wish me luck.
2006 262 w/ Volvo Penta 8.1L @ 375hp
Lake Conroe, Texas
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groberts4
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Re: No Oil Pressure(?)

Post by groberts4 »

groberts4 wrote: Wed May 15, 2024 4:03 pm Apologies all - For some reason when I pull up "Your Posts" I don't see any of your or my posts on this thread after March. So, I posted essentially the same thing a second time. But when I accessed my post through one of your user names the full thing popped up, current to today. So here I am explaining why I'm deleting the second post, which is no longer here, because it was initially posted and is still contained above.
2006 262 w/ Volvo Penta 8.1L @ 375hp
Lake Conroe, Texas
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