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Super 55


 
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KLPinNC
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Joined: 12 Feb 2017
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PostPosted: Fri Feb 01, 2019 6:03 pm    Post subject: Super 55 Reply to specific post Reply with quote

I am trying to put the Roosa Master pump back on. I over hauled the engine. I need to know which flywheel timing mark to use. My manual doesn't show for a Roosa Master.
 
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Dieseltech
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Joined: 29 Feb 2012
Posts: 7598
Location: Indiana

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PostPosted: Fri Feb 01, 2019 9:02 pm    Post subject: Re: Super 55 Reply to specific post Reply with quote

Will need to check my notes, sure it's not a 550? I've never seen a Roosa pump on a S55, but have repaired several from late 550. The Roosa is timed end of injection, while the PSB is timed beginning of injection.
 
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KLPinNC
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PostPosted: Sat Feb 02, 2019 3:53 am    Post subject: Re: Super 55 Reply to specific post Reply with quote

It's a change over kit. This is the second one that I have seen.
 
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J. Schwiebert
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PostPosted: Sat Feb 02, 2019 4:53 am    Post subject: Re: Super 55 Reply to specific post Reply with quote

Do you have the flywheel on? Was there a timing tape on the flywheel? If nothing was done to the flywheel there will be no marks for a Roosa pump? Since you overhauled it did you correct the valve recession in the cylinder head?
 
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KLPinNC
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PostPosted: Sat Feb 02, 2019 5:55 am    Post subject: Re: Super 55 Reply to specific post Reply with quote

No tape on flywheel. Head was checked. Pump was rebuilt, it was in bad shape.
 
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Dieseltech
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Location: Indiana

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PostPosted: Sat Feb 02, 2019 7:10 am    Post subject: Re: Super 55 Reply to specific post Reply with quote

The Roosa will time close to TDC since the retainer is marked for end of injection. Could be plus or minus a bit, but it's NOT FP, 26 BTDC like the PSB pump is.
 
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KLPinNC
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PostPosted: Sat Feb 02, 2019 8:44 am    Post subject: Re: Super 55 Reply to specific post Reply with quote

Thank you very much.
 
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J. Schwiebert
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PostPosted: Sat Feb 02, 2019 9:48 am    Post subject: Re: Super 55 Reply to specific post Reply with quote

What do you mean the head was checked? The recession on those heads was not correct when they were new! My e-mail is open. Correct recession makes a huge difference on those Oliver 4 cylinder diesels! send me an e-mail. J.
 
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Al Baker(pumpman)
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PostPosted: Sun Feb 03, 2019 8:00 pm    Post subject: Re: Super 55 Reply to specific post Reply with quote

I repaired a pump for a guy last week off a 660. It was a Roosa without an advance. If I remember correct the timing was 5*BTDC. I think it used the same engine, but I might be wrong. Al
 
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KLPinNC
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PostPosted: Mon Feb 04, 2019 5:57 pm    Post subject: Re: Super 55 Reply to specific post Reply with quote

I did check where the flywheel was before I removed the pump. Don't know what the degrees are. I am going to try old setting first.
 
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