I must be as blind and as stunned as my wife says I am
. I can't "see" anything with the numbers 430, 031 or 258 in a series anywhere on Bosch, Bryce or LAV ?
All I can tell it's a 97mm long S type with a three hole tip. A number 52 or 67. Not a pintle type.
Anybody know how the date code works? All I found reference to was a "letter" date code?
At least it's likely the engine is East Indian built. The condition/paint on the injector matched the rest of the engine exactly.
The bore is 3-7/16" and stroke 4.333" so she's some sort of a PH1W.
The missing compression was located. A made in England head gasket # 269116 measuring 50 thou thick with a 3.9950 bore was discovered sitting atop the 3-7/16 bore.
The valves have been cut back to a such a narrow margin that I could shave with the exhaust valve. Between grinding the valves and seats. The exhaust is sunk 74 thou and the intake 56 thou.
The water passages suggest that the coolant must have been dipped out of the cattle's water trough.
The bore looks decent with no scratches and only the most minor ridge at the top of the bore felt with the fingernails. If the soot was polished off the untraveled portion of the bore the piston could probably be pulled out the top if one wanted to.
I didn't check the block's cylinder wall thickness. Odds are it's safe to bore to the ASJ1 dia of 3-13/16. I've way overbored tractor engines then pressed in a dry/wet sleeve. I wonder if there is room for some of the Indian sizes of 102/4.01",114.3/4-1/2" or 120/4.72" ?