turbo chargers


Hi jlazzfp...the new boost pressure sensor came in yesterday and it was the wrong one so, my guy decided to pull the existing ones and said they were all corroded and he cleaned them and reinstalled them. Then I sent him a posting one of the guys on this forum sent me from another forum, regarding a similar problem with a guy's turbo and the boost pressure sensor. This posting went on to say that the tubes from the turbo also get clogged and need to be cleaned so, that is what he is doing today. Hopefully I get to sea trial it tomorrow. Fingers & toes crossed for me & you. What was it that finally was done or replaced on your boat for the port problem? If you recall, the shifting solenoid spindle was changed on mine.
 
That was me that sent the other link from the forum. No resolution yet. He just swapped the computers from one engine to the other. Maybe it was a loose connection. I changed the spindles multiple times. Didn't fix it for me !! Let me know how it goes. This weekend is supposed to be crappie weather. So no sea trial for me yet. Chat soon.
 
Turbos

Spent an hour or so out on the ocean. Both boost sensors were cleaned and nada! Anyone have any comment on waste gates? Starting to get annoyed.

Divergirl!
 
If the waste gate doesn't close all the way the tubro will spin high but will build very little pressure. Still need some real readings, why doesn't the mechanic take some readings (he doesn't have the tools, or doesn't know how)? I'm no expert on your diesel and have worked on many, but a diesel is a simpler machine then a gas one.
 
HI....what readings are you referring to? All gauges read fine. The RPMs read 1200 only, each engine. Will not get past 1200 and there is still some smoke coming out of each engine....not thick & black as at the beginning of this adventure but, smoke none the less.
 
Post 41
The readings I'm looking for are from the mechanic testing. He should have measured turbo boost, fuel pressure and would hope exhaust restriction pressure. If not exhaust restriction at least look at the exhaust components.
Click to expand...

I'm looking for gauge readings not found at the helm.

If your not getting full fuel pressure from the lift pump, the injection pump will not have enough full to create full power. As before a diesel is a simple motor that works off the amount of fuel it can burn. The more fuel that is injected into the cylinders, the more power it makes. If to much fuel is injected, it will come apart, to little fuel and in makes less power but no harm. A gas motor if you run it with to little gas it will burn a hole in a piston. If you run a diesel with to little fuel it just doesn't make much power.

One simple fitting which has a restriction can keep a diesel from making full power. The restriction will not hurt the motor or cause engine the motor gauges to show anything different.

If my motor starts acting up, and if the scan tool or helm gauges show normal, I then break out my service tools and find out what's going on. A diesel mechanic should have all the tools I'm talking about. It's like having an electrician come over and he didn't bring his voltmeter and wire pliers. I don't do this for a living but I have over $4K in tools to work on a boat. If I was in the business I can see an easy $10K, and tools for diesels cost more
 
All...it is now being suggested that the actual turbos are "carboned" up on the inside and even though they are spinning freely, if they are encrusted with carbon they are not going to build boost pressure correctly.

Anyone?
 
Kind of sort of maybe, but would have to be more then just carbon IMO.

The turbo has vanes on both sides and rotate in their own housing One side motor and other compressor). The housing has clearance between the vanes are the inner housing. So if carbon builds up on the inner housing, if it gets to thick it will come in contact with the vanes. If the vanes are intact without damage then I don't see carbon build up. It's easy enough to see if the turbo has damaged vanes, remove it and look in the housing. I most cases you can see the intake side

This all started if I remember correctly a while after the control board was replaced.

I'll ask at iboats to see if they would recommend a VP diesel mechanic in your area
 
Yes, it did all start after a new EDC was installed. I contacted Scott at Formula in regard to reprogramming the EDC and he deferred to Volvo Penta. I emailed customer service at VP to see if they could point me in a direction for reprogramming.

Thanks everyone.
 
Volvo Penta has advised that the EDC can be re-programmed however, you need a Vodia tool to do this and they are only available to Volvo Penta shops who are partnered with Volvo Penta. I don't feel that this is the problem though.

Back to the turbos....another mechanic has suggested that because my boat is not used every day, that the exhaust housing has probably corroded. Apparently this happens when boats sit. He was sent to me by the guy who brokered my boat way back in 2004. This guy took 20 mins from his day to talk with me yesterday and he sure sounds like he knows turbos inside and out. He said that if my boat was used regularly I would get 15,000+ hours out of them without any problems. The bad news is he is unavailable for 2 weeks as he is in the middle of rebuilding 2 big engines for another customer.


Anyone have any info on corroded turbo exhaust housings? Does this have anything to do with being "carboned" up?
 
Either you are not hiring the right people or you are trying to save money. LOL...

I VOLVO certified mechanic should identify your problem in one visit. I know they cost money, but look at how much you have spent already. If you have not done so, I think you should consider it. It will be money well spent.
 
I know that and I did contact Jas Marine here in Ft. Lauderdale. They sent me the authorization paperwork to sign and a cc auth to sign. I noticed that the serial numbers they had recorded for both engines were wrong as well as the engine model. When I questioned where they got that information they said "it was stored from last time we worked on your boat". I said they are clearly wrong which makes me wonder about any prior service. I told them that the numbers I had were taken from the original boat survey and from Volvo Penta America as well. I never heard from them again...this was 1 week ago.

Today I am scheduling time with the diesel tech who Volvo Penta sent to perform the SB safety recall. I will let everyone know once this is resolved. I cannot believe I am the only boat with this problem...that is weird to me.
 
Well everyone...it appears that the SB turbocharger cannot be saved. Apparently, the original waste gate was missing a few pieces, became corroded....stopped doing its job and therefore the blades are all corroded as well. The Volvo Penta tech NOW working on my boat said the port turbo is clean & spinning freely and that the waste gate on the SB caused this problem. Does anyone know if the turbos in my boat can be rebuilt? I looked through my survey and I do not see the name/brand of the turbos...anyone?
 
I'm finding a new one is in between 1700 to 2300, but did not dig deep into it. My guess would be any of the turbo service shops can rebuild it, I did a quick google and found a few. One of the places in PA says the same turbo is used on many of the motors and is model K26-3264MGA8.71GAAXB. Here is a link and they are talking $989. Suggest calling a few of them and make sure this includes the waste gate.

https://www.tristateturbo.com/rebui...d31m-a,-tamd31p-a,-tamd41b,-kad42-detail.html

MIC turbo is in Hialeah, FL
http://www.micturbo.com/

Cannot vouch for any of them, but a turbo is not a complex piece of equipment.
 
Can anyone find the cross reference for the turbocharger with Volvo Penta model 3802139 made by KKK? I am looking for the KKK model made for VP.
 
All....so, the BAD news is that the turbocharger cannot be saved. The compressor wheel is corroded and so is the exhaust housing. I am told that these parts are no longer available so, the turbo cannot be rebuilt. And, I can buy and have a brand new turbocharger shipped to me at no cost from a company in north Florida and save $900 however, the shop who now has the old turbo and has the SB exhaust system disassembled, will not install parts I purchase elsewhere so, this will be an $8,000 bill which they want upfront. It is crazy.


So, anyone out there able to validate the fact that parts (compressor wheel and exhaust housing) for the VP 3802139 turbocharger are no longer available?

"tanks"
Divergirl
 
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