19.5 Onan Engine Rebuild

[docs]

Hi I'm trying to find out what the parts or a compatible kit would cost to rebuild a Onan 19.5hp, Any Ideas, Or What will enterchange to replace the engine, Would the 17-18 twin kohler work? Tom

[JP]

Well, What does it need? Are you looking for parts? Are you going to do the rebuild? Honda repowers are $1650 or so. I'd think the 17-18 twin would be a bit under powering. JP

[D-17_Dave]

Tom, there are several diff. parts suppliers that you can use such as NAPA and other name brand supply houses as well as going through cummins/onan. There are several parts lsted on ebay if you are willing to take time to find them all. As for the engine swap, several people have done various engine swaps but the demintions of the CCKB are diff. from most other engines so it all depends on how resourceful you are and how much your willing to modifie as to what will fit. Al Eden at Small Engine Warehouse, a site sponser, has an engine swap kit for a 24 V-twin Honda. It's just all up to you.

[docs]

I'm Note really sure what it needs yet, Looking at buying a 9020 with this engine and all I know is that it had stripped the teeth on the flywheel and the owner said that it was smoking using oil before going down, I'd bet that it locked up or may have busted a rod. I'm just trying to get a feel for what is going to cost before I buy it. I Might be better off trying to get a differant tractor. Looking for a Sovereign w/hydro 16-18hp with 48" Deck is all I really need. I have a Compact 4x4 With everything but a mower. My old 2210 Landlord is getting tired and I need to get a bigger better Tractor.

[docs]

quote:

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Originally posted by JP
Well, What does it need? Are you looking for parts? Are you going to do the rebuild? Honda repowers are $1650 or so. I'd think the 17-18 twin would be a bit under powering. JP

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I would do the rebuild. I thaught of the power thing, Might be a Problem in high or wet grass or stressful situations. Do you know anyone that has installed a twin 18 in 1. That's kind what i'm trying to find out, I would rather use a briggs or kohler than an onan. and I heard that the hondas have heat problems and the cost way to much money. How about a deisel? form a later model simplicity or AC?

[ambler]

A couple years ago someone on this site was putting a diesel in a powermax.

[PGL]

Another club member living not too far from me got a very good deal on two Briggs & Stratton 24 hp v-twins. He had a few pieces machined and made a very neat and effective installation in his 720. Due to circumstances, he sold his machines, including a 620 he would have been putting the other engine in. I bought his other engine and he installed it for me. I will be using it in a remote location, and hope the new engine will be relatively trouble free for five or ten years at least, and parts should be more available. My old cckb Onan was still running well - checked the oil pressure and compression and found both within specs. I think they were 25 and 195 psi, but would have to confirm it with him. As a result, I have a cckb complete with charger/starter and muffler. I was considering using it for a CAD plan digger, generator or other, or just keeping it as a spare in case the B & S doesn't perform as hoped for. If anyone needs a transplant though, I could make it available to keep one of these AC - Simplicity machines running. It is currently located towards Kingston east of Toronto, but I will be binging it to Toronto in a few months. If interested, please send an e-mail. If this should be in ads section, please accept my apology and move it.

[B.Ikard]

The CCK series Onan is about the finest small gasoline engine in it's class...well perhaps the Honda is up there too. These engines are 100% full pressure lubed with replaceable main and rod bearings. At one time I was responsible for nearly 50 CCK powered portable floodlight sets. Most of these units had accumulated 4-6000 hours with no signs of internal wear. The only problem was sparkplug changes due to carbon, which is common on gasoline powered single speed generator sets. The bad news is they are obsolete and parts may be a problem. Also the parts tend to be expensive. Ike

[docs]

B.Icard So your saying that the onan is the better engine for lube and run a little longer because of less engine wear. I have not had that expierence yet with onans, Seems like everyone I have had or seen has locked up or throwed rods, but they were used and may have been abused. (Not By Me) I Have seen the old cast briggs and kohlers run for a long time, My current one is 33 years old, Yes it is smoking just a tad and uses a little oil but it has been doing that for 15 years and they are easy and generally cheap to repair. But I only use it 2 hours a week 24 weeks a year. I would guess that these onans I have had expierence with have had about the same amount of hours on them. And the Cost of PARTS WOW, I priced a Point Cover for an onan once was 100.00. But Im still not sure I want to take on this task of rebuilding the currnet onan or try to find a cheaper solution to get this 9020 up and running if I decide to buy it. I guess if I get it I'll try to research it a bit and make a dicission then. But still would like to hear from anyone who has repowered these with any briggs or kohler twins and or deisels. Thanks for all your comments. Doc

[powermax_paul]

Parts from Onan to rebuild are pricey. The flywheel itself is nearly $800 last I checked. If it needs rebuilding, re-power may be more cost effective. Paul

[ambler]

diesel repower link http://simpletractors.com/club2/topic.asp?TOPIC_ID=24012

[Leroy]

I have an Onan P224 I believe. It has a broken toe( bolt hole for mounting on deck) It came out of a Ground Master by Toro. I bought it off the net and had it trucked here. $545.00 I don't know anyone local who knows anything bout em. It was said to be a good strong runner and it did spin well by hand. i did not get a schematic fer it. So i have not attempted any electrical connections. Education is expensive. Ignorance is even more costly. My goal was to install it in the 7117 after the Kohler flew apart. Not wanting to wait any longer i bought a 16 horse from a club member and there are few other considerations to follow up on. Again electrical, Then the driveshaft is gone from the original technicians home where he took the engine apart. So i have two probably very good engines both of them cost very near 1000.00 over all and I still await a time when i can buy new because the old is not so well supported in this area. What kinds are here are,JD. Murray, Snapper,and the cheaper brands. Then Kubota is here in a big way. My Wife is willing for me to buy a new tractor because she knows what trials i have been through. ANd because i bought her a new car. I have to wait untill the car is paid down 3 or 4 years maybe. In that time i Hope to see Briggs & Stratton reintroducing the 720 or haveing simplicity do so.

[docs]

Ambler That Diesel Repower looks really tricky but I bet it has a lot of power and torque, Its a thaught, I would think that diesel would be the best way to go, sure would be nice if someone had something layed out ready to go for a decent price. Did'nt they make Diesel Twins in some of the late model AC's That might be real close to the same thing that's in there already? Docs Docs

[powermax_paul]

quote:

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Originally posted by Leroy
I have an Onan P224 I believe. It has a broken toe( bolt hole for mounting on deck) It came out of a Ground Master by Toro. I bought it off the net and had it trucked here. $545.00 I don't know anyone local who knows anything bout em. It was said to be a good strong runner and it did spin well by hand. i did not get a schematic fer it. So i have not attempted any electrical connections.

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Leroy, I often wondered if the newer Onan PPG series blocks would bolt up to the old CCKB oil pans. I think the PPG blocks have the same clutch bolt pattern and flywheel bolt locations as the CCKB's. Paul

[Leroy]

quote:

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Originally posted by powermax_paul

quote:

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Originally posted by Leroy
I have an Onan P224 I believe. It has a broken toe( bolt hole for mounting on deck) It came out of a Ground Master by Toro. I bought it off the net and had it trucked here. $545.00 I don't know anyone local who knows anything bout em. It was said to be a good strong runner and it did spin well by hand. i did not get a schematic fer it. So i have not attempted any electrical connections.

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Leroy, I often wondered if the newer Onan PPG series blocks would bolt up to the old CCKB oil pans. I think the PPG blocks have the same clutch bolt pattern and flywheel bolt locations as the CCKB's. Paul

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The engine detail is not in the service manual. a total engine breakdown was not available. I have the torqe specs and a tape measure. If that would be of any use.

[powermax_paul]

Problem is Leroy, all three of my CCKB's are in and running. Need to find someone with an engine out of frame. Paul

[D-17_Dave]

I have a 24 performer and an extra CCKB pan. One problem is heat disapation from the aluminum bloke. Also the aluminum block agains the cast pan would exspand and contract differently and probably cause serious leaks. Also the performer has a lot of heat fins on it. The ?? would be why not just put the whole performer into the powermax. It's been done before.

[powermax_paul]

quote:

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Originally posted by D-17_Dave
I have a 24 performer and an extra CCKB pan. One problem is heat disapation from the aluminum bloke. Also the aluminum block agains the cast pan would exspand and contract differently and probably cause serious leaks. Also the performer has a lot of heat fins on it. The ?? would be why not just put the whole performer into the powermax. It's been done before.

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Dave, The CCKB pans I have are all cast aluminum while the CCKB blocks are cast iron. And yes, they leak when they run hot. If the performer motors are cast aluminum, why would the cast aluminum CCKB pans be a problem? Unless they don't fit?;) Paul

[D-17_Dave]

Paul, I thought they were cast iron. You've got my curiousity up now. I just don't feel like going out and looking now.lol It would be too easy if they were the same.

[powermax_paul]

quote:

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Originally posted by D-17_Dave
Paul, I thought they were cast iron. You've got my curiousity up now. I just don't feel like going out and looking now.lol It would be too easy if they were the same.

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No problem Dave, I was just curious. Another consideration would be the oil pump pickup. I don't recall what that looks like. It's been about 15 years since I had a CCKB apart. Paul

[Leroy]

quote:

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Originally posted by powermax_paul

quote:

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Originally posted by D-17_Dave
Paul, I thought they were cast iron. You've got my curiousity up now. I just don't feel like going out and looking now.lol It would be too easy if they were the same.

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No problem Dave, I was just curious. Another consideration would be the oil pump pickup. I don't recall what that looks like. It's been about 15 years since I had a CCKB apart. Paul

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Ain't it about time fer a rebuild then ? I think 14 years is the limit on gasket material;)

[powermax_paul]

Leroy, If it works, I don't fix it.;) My first 9020 has 890 hours on it and the motor hasn't been touched since my uncle bought it new in 1976. Paul

[KohlerMan]

Hey, I've got a good freind who has a 19.5 onan for sale...let me know if your intersted..... KohlerMan

[powermax_paul]

quote:

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Originally posted by KohlerMan
Hey, I've got a good freind who has a 19.5 onan for sale...let me know if your intersted..... KohlerMan

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There ya go Doc! Jump on that;) Paul

[Leroy]

quote:

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Originally posted by powermax_paul
Leroy, If it works, I don't fix it.;) My first 9020 has 890 hours on it and the motor hasn't been touched since my uncle bought it new in 1976. Paul

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Mighty good practice there. I was just joking on the gasket life.