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Generators In this forum we will try to answer any of your questions about the different model generators that can be found on Blue Bird coach's.

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  #11  
Old 09-28-2013
NH Bill's Avatar
NH Bill NH Bill is offline
1983 FC 35 "Casa Billisa"
 
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Ryan stopped by yesterday morning and we got an oil pressure reading off the Yanmar. She's putting a strong and steady 50 psi. So that was the big question and the good news.


Decided to replace the sending unit so we off to a nearby HD truck counter and they sent us down to a Yanmar dealer but it was the wrong one. Then we were sent off to another Yanmar dealer and he had the sender that corresponded with the motor model # but it looked different then the sender that was on the Yanmar to begin with. Decided to drop the $50 and try it out. Ryan suspected it may not work because Blue Bird may have used a different arrangement as they have been know to do with many things that bolt onto engines in these coaches.

Sure enough, the new sender did not even register. Ryan put a meter in it to check resistance and it was not right. Decided to clean the old sender up and put it back with new terminal on wire. She fired up and is showing a steady 30 psi at the dash gauge and that is exactly how it was when I go it ( engine spec stated mid 20s to mid 50s).

So, perhaps the all the old sender needed was a tour of the Pinellas Peninsula, a good dose of brake cleaner and a new crimp terminal!

As for Ryan, well, we did stop and have a great lunch at Mazzaro's and I pointed out to him as we were touring the Peninsula, that even though this simple task was taking hours, it was far better than digging a ditch and that seem to make him feel better about committing his day to this!

We were traveling in Ryans totally restored 1991 Wrangler and it was a treat...a cruising little rig and the beautiful orange paint job catches the admiration of all who gaze upon her!

Thanks, Ryan (aka Major Mod, aka Simple Farm Boy), for your help and don't forget, IOU a day! BTW, he is already prepping me psychologically for what he has in store... it involves a paint scrapper and vinyl stripes and an 83 FC... can't wait!

NH Bill
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  #12  
Old 09-28-2013
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Turbokitty Turbokitty is offline
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All went well 50 psi at the gauge with funky readings at the dash

Mazzarro's was most excellent too, thanks Bill!
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Ryan and Michelle Saari
Timberlake Products Group, Inc.
1985 PT36
1983 FC35RB Left me for Atlanta!
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  #13  
Old 01-08-2014
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NH Bill NH Bill is offline
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Default Follow up with part # for correct sender

Quote:
Originally Posted by NH Bill View Post
Ryan stopped by yesterday morning and we got an oil pressure reading off the Yanmar. She's putting a strong and steady 50 psi. So that was the big question and the good news.

Decided to replace the sending unit so we off to a nearby HD truck counter and they sent us down to a Yanmar dealer but it was the wrong one. Then we were sent off to another Yanmar dealer and he had the sender that corresponded with the motor model # but it looked different then the sender that was on the Yanmar to begin with. Decided to drop the $50 and try it out. Ryan suspected it may not work because Blue Bird may have used a different arrangement as they have been know to do with many things that bolt onto engines in these coaches.

Sure enough, the new sender did not even register. Ryan put a meter in it to check resistance and it was not right. Decided to clean the old sender up and put it back with new terminal on wire. She fired up and is showing a steady 30 psi at the dash gauge and that is exactly how it was when I go it ( engine spec stated mid 20s to mid 50s).

So, perhaps the all the old sender needed was a tour of the Pinellas Peninsula, a good dose of brake cleaner and a new crimp terminal!

NH Bill
Follow up with part # for correct sender:
Old sender did not run long and decided to go after this annoying little problem again.

Back to Yanmar with a photo of the gauge and they sent me off with a part # for a VDO sender... found it at NAPA. Did not work. Pulled off the old sender and cleaned it up on a wire wheel and was barelyy able to make out the word INTROL on the body. Also stamped on base nut was 100 and L0. Looked on the Internet and noticed it associated with some older fork lifts and Mopar stuff.

Started calling around and found an ancient little auto parts store (hole in the wall) about 3 blocks from my coach garage. "Complete Auto Parts and Machine Shop, Inc.". Told Domenic what I had and he said yep, I think I know exactly what you need. Ill have it here tomorrow. He said to be sure its not the gauge, to ground out the sender wire and run the generator. The gauge should pin past 100. Did this and it pinned. Went over to the store and he handed me my new sender ($16). Installed it and it works perfectly!

Dominic and his brother Paul have a combined experience in this business of 105 years! I think these guys forgot more than all the other places combined know... as least when it comes to vintage stuff. They moved to St. Petersburg about 27 years ago from Waterbury CN where their dad started their first store. I'm sure glad to have found this place! Great guys real old school store.

Domenic's son Matt is there too and Matt's new born was behind the counter on the floor in a hamper! hahaha http://completeautosp.com/

BTW that oil pressure sender for the Yanmar/Kohler is a PS59T by Standard Motor Products.

Hope this will save the next guy that needs a sender for this arrangement some aggravation!






NH Bill
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Last edited by NH Bill; 01-08-2014 at 12:37 PM. Reason: typo
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  #14  
Old 01-08-2014
cemjam cemjam is offline
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Thanks for the update Bill. I all ways learn from your adventures!!!
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  #15  
Old 01-08-2014
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Hi Bill,

It also needs to match the gage,
Is the gage the BB standard Teleflex oil pressure gage???
And the same for the 3208 gage??
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  #16  
Old 01-08-2014
ejallison1 ejallison1 is offline
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Thanks for the info/part #. The oil pressure gauge for both the 8V92 and the Yanmar/Kohler are the same on my coach. I got two oil sending units from bedee. Your part # may work for the 8V92 engine as well. IIRC both gauges for oil pressure were 0-120 PSI. $16 is a deal
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  #17  
Old 01-08-2014
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NH Bill NH Bill is offline
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Quote:
Originally Posted by Bill Pape View Post
Hi Bill,

It also needs to match the gage,
Is the gage the BB standard Teleflex oil pressure gage???
And the same for the 3208 gage??
Hi Bill - I do not know if this is a Teleflex oil pressure gauge. My genset was completely replaced some time in the early 90s. I could not find anything on the face indicating make and I don't like opening up the dash panel unless its necessary. PIA. Here is a photo of the gauge. What ever it is, it seems to be happy with my new sender!

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  #18  
Old 01-08-2014
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NH Bill NH Bill is offline
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Quote:
Originally Posted by ejallison1 View Post
Thanks for the info/part #. The oil pressure gauge for both the 8V92 and the Yanmar/Kohler are the same on my coach. I got two oil sending units from bedee. Your part # may work for the 8V92 engine as well. IIRC both gauges for oil pressure were 0-120 PSI. $16 is a deal
Ed- Note the oil pressure gauge I am using with this sender is 0-100. I have no idea if it will run with a 0-120 gauge. I'm guessing the guys at Complete Auto Parts may know. 727 895-3821.

Bill
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  #19  
Old 01-08-2014
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NH Bill NH Bill is offline
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Default Yanmar Oil and Fuel Filter #s

I also changed the oil (6 qt Rotella 15/40), and oil and fuel filters on the Yanmar/Kohler when I was in there yesterday.

I got Yanmar filters probably the same as Wix or NAPA Gold but they were about the same price at the Yanmar dealer. Here are the Yanmar part #s

Oil Filter



Fuel Filter


NH Bill
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Last edited by NH Bill; 01-08-2014 at 06:38 PM.
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  #20  
Old 02-21-2020
Zog Zog is offline
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Resurrecting an old thread: Running some trouble shooting on our Yanmar due to occasional shutdowns. One issue is that the oil pressure gauge never goes to zero at shutdown. I took the lead off the sender, and the gauge pegged at max. Shorted it to ground and it went to zero. Sounds to me like somewhere along the line, the + and ground leads got reversed on the gauge.

Looking for agreement on this before I pull apart the upper panel to check.

I think I also need to replace the sender, as the pressure never seems to vary from 60. I've got new protection circuit sensors on the way for the shutdown issue. I watched the "run light" flash right before the most recent shutdown. Its not dropping in speed, just shutting down like the stop switch was held down.

Going to be FT for a while starting in April, so trying to get these things finished off as quickly as I can.
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