1) No this engine hasn't been rebuilt that I'm aware of. It has the upgraded "Extra Duty"
engine & when it last ran it was quieter than my current Falcon at the time.
2) My other chassis was a 1950 K Model which after stripping the required parts has been sold.
My K is a very late 1953 the last before the J model.
3) This is a 6 cylinder no other pots
4) no don't have a leak down gauge only a compression test gauge. Not sure what that is?
5) I didn't check the tappets for stuck valves & I didn't check the throttle was wide open.
I've just checked & both the throttle & choke were in the closed position when I ran the tests!
Does this have a major impact on readings?
OK. so I'll take another set of readings & see what we get & check for stuck valves.
Stuck valve seats - Do you mean the Valve Spring Seats cobbadog?
I assume you have the 214 motor ,which was basically a Chev with improved full pressure oiling.Its easy to see if it has sticky valves ,the pushrods will come loose in their sockets .....Id be inclined to run the motor for a minute or two ,at least untill oil pressure is up,then check the compression ....the valve seats may have dirt or rust on them ,which disappears with a short run.
jon_d on the early motors (even the later "Extra Duty" ones) the compression was a mind numbing 6.6:1 - K, M, or O
My Austin has low readings but still runs reasonably well. with no smoke from breather or exhaust.
Meanwhile I am sitting on a 1951 O type, which is where I wanted to be three or so years ago!
OK, Compression Test results with Choke & Throttle both open & air cleaner removed.
#1 115 110
#2 125 125
#3 50 50
#4 60 60
#5 80 85
#6 25 30
A big improvement but still issues with pots #3, #4, & #6.
All tappets are loose at the top of the stroke & all valves moving.
Looks like top overhaul & new rings is the go.
Any comments guys?
Those compression figures say to me there is not much wrong with the rings. Oiling will only change compression if there is a ring or bore problem and your changes are insignificant. I would put big money on valves.
Last year, when I was doing my 1941 Chev Panel Van (very closely related engine to the Bedford) I had terrible compressions all below 50 and a couple at 10. Pulled the head off and the valves were worn away - amazing it still ran. I had the head rebuilt, checked the bores were not scored or displayed excessive wear ridges at the top, and stuck it back on.