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1979 201 CAV injection pump

B

Brian Allen

Well-known Member
Hi all
I am thinking the injection pump on my 1979 Ford 555 TLB is set too far advanced. Or, is it a bad injector?
It is the 201 engine with the CAV injection pump.
It runs smooth enough at an idle, but as soon as I try to speed up, it seems to have power loss and a lot of vibration. The machine is well worn (lots of hours), but I'm concerned that this vibration may cause more trouble! (PO just changed flex plate)
It looks like the timing is set slightly to the left of "0" on the pump markings. Is that advanced? (C-C from 0)
The PO mentioned he had the pump re-built.
I have re-adjusted the valves already, they were at least 20-30 thou.
I'm hoping to keep it running for quite a while, before I have to do major engine work.
Any thoughts?
Thanks!
Brian
 
I"m no expert on these matters but I think CCW is retarding the timing not advancing it. You might try moving the pump in the CW direction to the first mark and see if that makes any difference. Just make sure you know where the starting point was in case you have to go back.
 
Jerry/MT
Thanks, I adjusted the timing slightly more +, that seems OK now.

Kudoos to Ultra he told me to crack the injectors open at governor speed - #3 cylinder cuts out at high RPM, I plan to remove all injectors tonight, if I can get them repaired tomorrow.
This is a great site!
Again
Thanks all!
Brian
PS I may even find time for a picture!
 
Darn!
The injectors are popping correctly @2800 PSI.
I must have a bad cylinder/valve on #3.
I need a compression gauge to trouble shoot further.
It looks like I'll pull the head as soon as it gets a bit warmer.

I also found a deal on a three legged 4000, just need to see if the engine is any good next week!
Wish me luck!
Brian
 
I added a bottle of Reslone to the oil and injector cleaner to the fuel yesterday, and today it is running much like you would expect from an old machine.
It is running much smoother and the vibration is very much improved.
I'll change the oil when I get the hawthorns cleaned up and give her a much needed grease job!
Brian
6057.jpg
6058.jpg
 
If you've never run one of those you'll have a blast running it. I have an '81 555. Hydraulics are fast and very strong. Hoe is strong enough to grab a solid object and pick the whole machine off the ground, putting all of its weight on its stabilizers. I'm somewhat familiar with mine if you have any questions. Email is open.
 
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