Lister Engines > Petteroids
Petter PC1 Engine in a Crawley 75 Tractor
biggurn:
I am new here and recently acquired a Crawley 75 tractor that is powered by a Petter PC1 diesel engine. Unfortunately, the injector was removed by a previous owner and lost to time. The piston is currently out, and needs rings. I understand that rings from a PAZ1 will work?
Does anyone here know of an alternative injector that will work/be close for a PC1? Or perhaps of a used injector available for this engine?
Thank you!
mobile_bob:
sorry i can't help with the parts problem, but dang that is one cool little tractor!
and the rubber looks great!
so many old small tractors that survive around here have rubber that is so cracked and weather checked it is amazing that air isn't forced in from the outside.
good luck getting the old girl up and running again.
bob g
biggurn:
--- Quote from: mobile_bob on October 13, 2021, 08:46:35 PM ---sorry i can't help with the parts problem, but dang that is one cool little tractor!
and the rubber looks great!
so many old small tractors that survive around here have rubber that is so cracked and weather checked it is amazing that air isn't forced in from the outside.
good luck getting the old girl up and running again.
bob g
--- End quote ---
One of the previous owners added new rubber to make it easy to move about. Then, it's been stored inside ever after.
listard-jp2:
Having had a bit to do with Petter PC engines, I can confirm that a PAZ1 injector holder will not be suitable. Early PAZ1 injectors are clamped in position with a bridge piece (much like a Lister CS). Later ones dispense with the bridge piece, but are still not suitable as the high pressure fuel connection is at a compound angle to the vertical axis of the piston. Hence if you tried a complete injector assembly from a PAZ1 engine in a PC1. there would be a good chance that the injector spray pattern would be wrong as it would not entirely line up with the combustion chamber in the PC piston crown.
IMHO you would be better to use a Bryce injector holder from a Petter PH or PJ engine, as they look very similar to the correct PC injector holder. Do you have the injector shroud or is that also missing? Both of these items are easily found on the likes of Ebay etc.
If so you may be able to use the same item from a PH engine, though you may need to modify it somewhat.
IIRC The injector shroud on a PC engine was turned out of copper bar, and was a real work of art.
The injector nozzle from either a Petter AV, or PH may be a better choice, as the combustion chamber design is similar to the PC engine (valve cutouts), whereas the PAZ1 combustion chamber has no valve cutouts in the piston crown.
Finally I suggest that you contact Jim Perkins, as he has a website for Petter engines, and may be able to help you with a source of parts.
I do have some used PC parts myself (no injectors or injector shrouds) from a PC2 I rescued from a scrapyard just for the electric start parts, and which I am now looking to move on, as I have no further need for these parts.
biggurn:
Thank you for the information. I have reached out to Mr. Perkins, but have had no response after several attempts.
I really appreciate the insight and information you have provided as that will give me some options of what to look for. I unfortunately, the entire injector and shroud are missing. I'll have to order an aluminum unit to use with my engine and machine it to fit.
Too bad your parts engine was short the injector parts!
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