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Engine help and advice needed.
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70bus Premium Member
Samba Member


Joined: July 15, 2004
Posts: 1206
Location: P.O.
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PostPosted: Wed Apr 30, 2025 8:04 pm    Post subject: Re: Engine help and advice needed. Reply with quote

Breather box, I assume. Yes; drain oil! And figure out the fuel issue before going too far forward - you can try starting it with plugs in to see if it really was simply hydrolocked, but then cut fuel supply til you have time to figure out oversupply. No point doing this all again.
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ComfortablyNumb
Samba Member


Joined: February 19, 2025
Posts: 25
Location: Washington State
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PostPosted: Fri May 16, 2025 6:50 pm    Post subject: Re: Engine help and advice needed. Reply with quote

Thanks for your responses. Since I last updated, I went to the Methow to check out the farmers market and stop in to visit the Samba member. He's been busy and hasn't had a chance to come over but is going to Spokane soon (maybe this weekend) to visit a buddy who wrenches on air-cooleds. His daughter is having a dance recital in Omak, so on his way home he will go there and hopefully have a chance to stop in and see my bus. I'm only a couple of miles from where she is performing.

Meanwhile, I've taken the bull by the horns. I drained the oil, it was diluted with fuel, no viscosity whatsoever. I pulled out the motor and took off what little cooling tin was on it. I also got the fuel tank out, that was a chore. It turns out it is from a 1977 bus, at least that is what is written on it. The fit was tight, I thought I was going to have to pull out an acetylene torch and cut it out. Someone cut a hole above it, undoubtably to get to the sending unit. They then screwed a plate to cover the hole. I had to back the screws out to get the tank up as high as I could, and even then, the two metal connections at the bottom of the tank wouldn't clear the opening. I even tried using a wonder bar to no avail. Finally, I got under the bus and was considering options when I got the tubes to clear by pushing up on the tank and slightly tipping it. I was then able to wiggle and pull it out. Needless to say, that tank isn't going back in.

Pics or it didn't happen, eh?

Here is the motor now:


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This is the cooling tin I coiuld get off:


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I got the screws out, but I haven't figured out how to get it off without removing the pulley. How do you like the customising to fit around the brass fitting?


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Here is the tank before:


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And removed:


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I have to take a break from it; I have a small farm and need to get some planting done. But hopefully get a list of parts needed and where to order them from and get it back running again.


Last edited by ComfortablyNumb on Fri May 16, 2025 8:00 pm; edited 1 time in total
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Eric&Barb
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Joined: September 19, 2004
Posts: 25795
Location: Olympia Wash Rinse & Repeat
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PostPosted: Fri May 16, 2025 7:11 pm    Post subject: Re: Engine help and advice needed. Reply with quote

Well you are definitely missing the foam seal over the oil cooler to seal that cooler to the fan shroud. All cooling air needs to go thru the cooler, none around it.
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