Thanks man.! Well, I don't know, see what I measured. As I said before, measuring in inches is not easy here as we are not use to.
Josep
Hope this helps:
http://m.wikihow.com/Read-a-Measuring-Tapeanother GOOGLE search or "Read a Tape Measure" converted to your own language first may be even more helpful.
Your image's red arrow is pointing at about 5-7/8 inches (5-7/8"). Your tape measure's smallest marked intervals are in 1/32's of an inch. (1/32")
Common "inch" marks on most measuring instruments, descending from 1 inch with "inch" being the largest:
~inch (1")
~1/2 inch (1/2")
~1/4 inch (1/4")
~1/8 inch (1/8")
~1/16 inch (1/16")
~1/32 inch (1/32")
~1/64 inch (1/64")
THEN, the harder part, using what is called the
lowest common denominator. That is why the numbering order looks so strange.
Using YOUR 1/32" increment tape measure for reading all 32 marks on it...(much the same as "sae" socket/wrench set)
1/32", 1/16", 3/32", 1/8", 5/32", 3/16", 7/32", 5/16", 1/4", 9/32", 5/16", 1/32", 3/8", 13/32", 7/16", 15/32", 1/2", 17/32", 9/16", 19/32", 5/8", 21/32", 11/16", 23/32", 3/4", 25/32", 13/16", 27/32", 7/8", 29/32", 15/16", 31/32", 1-inch
Then for numbers OVER 1 inch, it begins like... 1-1/32", 1-1/16", 1-3/32" and so on up to the TWO inch mark. (Josep, still using YOUR tape measure as a sample)
Yes, fractions are STRANGE, even to us Americans...but the pattern makes good sense.
(we will not step into the "64th's of an inch" waters
NOR will we get into measuring in FEET at this time...OR MILES!
Hi Jim,
I can't see any part number in the front, maybe at the back.. It's a 2 groove pulley.
Yes, I also have a small set of SAE tools here to play with my Mustang, but sometimes measures are a mess.!!
Josep
It has been a while since I worked on a 200 Mustang crankshaft pulley so this comment may not apply to your 66 200CID I6, Thermactor need, but you say you need a "two groove pulley". Looking at the picture you posted and looking at the illustration I have for the 1967, 200 inline 6 cylinder "Thermactor only" engine, it looks to me like there would be a single groove base pulley with a 2nd pulley added (bolted with the three bolts) to the face of the harmonic balancer pulley. ( see attached pictures below of the 1967 version, pay particular attention to items #10 & #11 and bolt(s) #14). My interpretation of the illustration is that there were two different crankshaft pulleys and one possible outer pulley (again, on the 67's). The "ALT" note on the inner pulley suggests to me there may have been an optional INNER pulley, possibly a double pulley for a higher amperage ALTERNATOR, suggesting to me the outer pulley is for the Thermactor on a car without AC or Power Steering.
I imagine it would be best to use original I6, 1966 examples with ONLY a Thermactor system as those would help to determine the accuracy of my interpretation.
FWIW, I recall many 60's to 70's era vehicles used a single groove harmonic balancer and used a sort of "add a pulley" system design which bolted to the front of the "stock" single-groove or at times a multi-grooved harmonic balancer pulley. More often, but not exclusively, this was for the likes of Dealer Additions or the aftermarket world (air conditioning and/or Power Steering), so again, without further researching your specific application, this may not apply to your particular need.
