Reply With Quoteby their engine numbers and their age
Master
SupporterHow do you tell the difference between these 2 motors without pulling the sump?
Mustlust
1950 Series 1 80in lights behind grill
1950 Series 1 80in rolling chassis looking for a body
1956 Series 1 86in
1956 Series 1 107
1957 Series 1 88in
1967 Mustang coupe 347 stroker
2011 Discovery 4 3.0
2009 110 utility 2.4tdci
Swaggie
by their engine numbers and their age
RoverLord
All threads (and hence heads and nuts) on the 5 bearing are metric, on the 3 bearing they are UNF with a few Whitworth, and probably a few BSF.
The five bearing has a pattern of reinforcing ribs on the sides of the crankcase that are not on the 3 bearing.
Five bearing are very scarce in Australia - apparently not fitted to any local production, but station wagons and some others were imported built up, and there were later private imports.
John
JDNSW
1986 110 County 3.9 diesel
1970 2a 109 2.25 petrol
SysAdmin (Owner)
and the 5 bearing seems to be the one that puts a window in the block most often
2007 Discovery 3 SE7 TDV6 2.7
2012 SZ Territory TX 2.7 TDCi
"Make the lie big, make it simple, keep saying it, and eventually they will believe it." -- a warning from Adolf Hitler
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“What you leave behind is not what is engraved in stone monuments, but what is woven into the lives of others.” - Pericles
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ChatterBox
SupporterHello from New Hampshire.
Beyond what has already been offered - all largely correct - the block colours were also different.
The 3 bearing block was the traditional Admiralty Grey while the 5 bearing block was Ochre Red or some hue thereabouts. The heads might have been painted black.
As also noted, these motors generally didn’t make it into locally assembled trucks.
Cheers,
Neil
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