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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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Re: #4 Injector line on Perkins

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Author  [Modern View]

05-24-2014 12:51:33

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I think not. In the pump the rotor clearance is measured at the factory with an air micrometer. It is in microns and can not be measured by micrometers or verniers. In the old days they would put a pile of rotors and rings on table. Then women that had a lot of experience fitting them matched them up. So, to shorten the post it can not leak between 2 and 4. The pump would have to be so bad the tractor would not even start.
It sounds like a timing problem. Forget playing with the gears on front if they are as close as reasonably possible.
On the left front of the engine, ahead of the injection pump drive there are 4 5/16 bolts. Remove that cover and The are 3 allen bolts, loosen them. The little gear there has 3 slots in it try a few positions back and forth. Mark your starting point on the gear so you know where you started.
My getting involved was when I bought 23 new surplus engines for scrap price in 1969. The only thing I did not check before paying for them is that they were in England. Again long story short the freight to my shop was only $400 per engine. For years Oliver brand was strong around here and Perkins engines then were designed to burn a quart of oil every ten hours. So, yor can guess what happened. That is when I started rebuilding Perkins Engines.
Last thing if you turn injector upside down on 4 bend the line a little tighen it up start the engine and see what kind of pattern you get.
Please post back how you make out. If this does not work, post back then it gets a little more complicagted.

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05-24-2014 13:09:54

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 Re: #4 Injector line on Perkins in reply to CAS, 05-24-2014 12:51:33  
Can timing really affect just one cylinder? My reasoning for my first post was someone told me that on these engines fuel delivery issues are usually caused by the cylinder before the one you're having trouble with in the firing order. Sounds confusing even to me...I've tried so many things its hard to keep it all straight...

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05-24-2014 12:54:25

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 Re: #4 Injector line on Perkins in reply to CAS, 05-24-2014 12:51:33  
Thank you for the info, I will do as you suggested and let you know what happens...

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