In a pickle and could use some guidance

I thought the Aetnas had to have a 50 RPM signal for the clock to run, but I can't put my hands on the reference.

One thing to do is see how the meters are wired. If a meter runs without having the engine turning, that might be the discrepancy, and lend credibility to one meter or the other.
 
We
dtfeld said:
I thought the Aetnas had to have a 50 RPM signal for the clock to run, but I can't put my hands on the reference.

One thing to do is see how the meters are wired. If a meter runs without having the engine turning, that might be the discrepancy, and lend credibility to one meter or the other.
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I got up under the helm to snap a picture of the tach and briefly looked into tracing the wires and instantly got a migraine. For such a nice big solid boat, Carver cut corners on hiring electricians.
I’ve spent tens of hours on this boat straightening out wire runs and tracing wires. The wire diagram for the boat is printed on a single 8 1/2x 11 sheet of paper. Believe me when I say I won’t shed a tear when I finally hand over the keys to the new owner.
If I ever get back into a boat it won’t be a Carver I assure you!
 
RESOLVED! I spoke with a tech from Aetna Engineering (now Fireboy) this morning. As I suspected after several hours of research, the 8905 tachs that I have are not recording tachs. They never were and never will be. Recording tachs have a separate window that reads tach time or hours full time. The ass hole that the buyer hired to do the survey did not understand the boat or the system but gave his analysis as my being dishonestly representing the boat with erroneous engine hours. Said my hobbs were after market hour meters. I have a mind to look him up and report him to the Society of marine surveyors. This came very close to screwing a deal that was weeks in the making for a boat that is in really nice condition for its age. I spoke with the buyer this morning and set him straight and he expressed his displeasure with the surveyor for giving him the counsel that he did. Deal is back on track now. I just hate it when professionals that come across something that they don't know shit about provide incorrect information about it with out adding a caveat regarding their lack of knowledge about the subject. I am going to look him up and have a direct conversation with him to feel him out. If he gives me attitude I will commit to make his life a little less happy.
Carpe Diem
 
Carpediem44DB said:
RESOLVED! I spoke with a tech from Aetna Engineering (now Fireboy) this morning. As I suspected after several hours of research, the 8905 tachs that I have are not recording tachs. They never were and never will be. Recording tachs have a separate window that reads tach time or hours full time. The ass hole that the buyer hired to do the survey did not understand the boat or the system but gave his analysis as my being dishonestly representing the boat with erroneous engine hours. Said my hobbs were after market hour meters. I have a mind to look him up and report him to the Society of marine surveyors. This came very close to screwing a deal that was weeks in the making for a boat that is in really nice condition for its age. I spoke with the buyer this morning and set him straight and he expressed his displeasure with the surveyor for giving him the counsel that he did. Deal is back on track now. I just hate it when professionals that come across something that they don't know shit about provide incorrect information about it with out adding a caveat regarding their lack of knowledge about the subject. I am going to look him up and have a direct conversation with him to feel him out. If he gives me attitude I will commit to make his life a little less happy.
Carpe Diem
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So where does the tach come up with the "hours?"

There should be no "counsel" given where there are conflicting numbers. It should just be further investigation warranted. Thus, my suggestion above to go right to the engine computer.
 
The 8905 Tachometers have no recording capability, hence the factory installed analog hour meters mounted adjacent each motor. The surveyor told the buyer that they were after market. All the guy had to do was look at the wire loom and see that the paint matches the factory paint on the rest of the loom to see that the hour meters were installed at the factory. Having the EDM read by a Volvo tech would be the prudent thing to have done but the owner had an independent marine grease monkey do his mechanical survey. At this point I have no interest in proving the engine times. If the buyer still wants verification, he can arrange that.
 
carterchapman said:
Curious as to where you bouth the computer to read the engines hours. Did you buy the full MANCATS computer?

MMDS board battery needs replacing to correct display hours. Display battery can be replaced by Sea-Tronics for ~$350...(sea-tronics.com)
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Diesel Laptops, I think it was around $5000. Lets you see all the Faults, Read everything in the ECU. For where I am located that is one service call for a Tech to come to me. This way if I have a minor issue I can solve myself.
 
Glad you are back on track with the facts. I would encourage you AND the buyer get on the horn with the "surveyor" and have that technical discussion. A survey should not make ignorance as a statement of fact but rather observations and recommendations on understanding out of nominal findings. The buyer should have a corrected survey for his future plans.
As a service to other's (not so savvy as you) I think it important to follow up with the fellow and if his arrogance/denial continues a report to the certifying agencies. Just my thoughts.
 
ttmott said:
Glad you are back on track with the facts. I would encourage you AND the buyer get on the horn with the "surveyor" and have that technical discussion. A survey should not make ignorance as a statement of fact but rather observations and recommendations on understanding out of nominal findings. The buyer should have a corrected survey for his future plans.
As a service to other's (not so savvy as you) I think it important to follow up with the fellow and if his arrogance/denial continues a report to the certifying agencies. Just my thoughts.
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I realize this is the last thing anyone wants to do.....but it is good advice. Get the buyer and yourself on the phone with the surveyor. The surveyor needs to amend his report as part of the process. If he continues to disagree that the meters are aftermarket.....then he either does not know diesel Carvers or is just being an ass.

I'm of the mindset though that checking the ECU hours is worth the effort by all parties. I don't know what device they use on Volvos to access the data but I would want that data if I was buying the boat (and any other critical data that has been recorded by the ECU).
 
For what its worth, and maybe this will help if this is your boat.

From 2014 when your previous owner would have purchased the boat.
Screen Shot 2022-10-04 at 9.15.02 AM.png
 
I spoke again with the buyer after he read the completed survey, the reported hours are the hours displayed on the ER Hobbs. No mention of the numbers he saw on the tachs in his report. There were a couple of condition issues found during the haul out which we agreed on providing credit for so all is good. We are on track to close in the coming days.
looking forward to being boatless actually, I have many projects around the ranch that the boat seemed to take precedence over so it will be good to close them out.
 
Jus the two of us said:
Diesel Laptops, I think it was around $5000. Lets you see all the Faults, Read everything in the ECU. For where I am located that is one service call for a Tech to come to me. This way if I have a minor issue I can solve myself.
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Thanks - I'll research.
 
Carpediem44DB said:
I spoke again with the buyer after he read the completed survey, the reported hours are the hours displayed on the ER Hobbs. No mention of the numbers he saw on the tachs in his report. There were a couple of condition issues found during the haul out which we agreed on providing credit for so all is good. We are on track to close in the coming days.
looking forward to being boatless actually, I have many projects around the ranch that the boat seemed to take precedence over so it will be good to close them out.
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Sounds like we all threw this surveyor under the bus a little early. Who knows what the conversation was between the buyer and his surveyor. Buyer may have just been trying for that discount???
 
Golfman25 said:
Sounds like we all threw this surveyor under the bus a little early. Who knows what the conversation was between the buyer and his surveyor. Buyer may have just been trying for that discount???
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Perhaps but after my conversation with the buyer about other findings still leads me to believe that this surveyor is sub par in his knowledge of systems. I get it, it takes years of experience to understand the wide array of systems and issues on these boats. I liken it to my area of expertise in GA. I know a lot about many things after 40 years but I know enough to know that I don't every thing about anything. When I do a pre sale inspection on an aircraft that I am not familiar with I can only make observations about the general condition and what I know about the standards for airworthiness. I always acknowledged my lack of expertise for the particular model I was inspecting. The surveyor in question had 12 years of experience which isn't much in my book. Hopefully he learned something on this survey. Its done though so I am moving on.
Cheers
 
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