1999 ford ranger 3.0 cerpentine belt not going on; verified the belt it is 1/2 inch shorter but correct

Are you sure the tensioner is working properly?

CJB

The newer fiber reinforced belts don't really stretch. You might want to try the dealer.

Dick wrote:

have you checked the numbers on the old one to be sure it HAS stretched ?

the belt number is in the form X K NNNN where X = number of ribs and XXXX is length in millimeters

for instance, a 5K1000 would be 5 rib, 1000 mm or 39.37 " long

see if there's a number on the old one, LOTS of parts places' 'reference list' is wrong...................you may need to add a bit to the number of hte 'correct' belt to get it right

what's the number on the new one ?

if you have a 5K1200 (as an example), you might need to go to the next longer, a 5K1215 for instance (just guessing at numbers)

The tentioner has a notch on it much like the f key and the J key on the computer keyboards do, it was designed ( I am told) to watch and see how much the belt has stretched. Hence while these belts are made to stretch very liuttle the new belt is 1/2 inch shorter, thjan the old one.

I was able tp return the old one back in place, and am riding the truck with the old one the new one is a BEAR to put on. One solution I am thinking of is to find a large 3 1/2 inch bearing to press on the cerpentine belt down so I can slip the belt of it and push it to the pully possibly with some soap on the 2 metals and the belt I then still will have to push down on the beatring with force enough to strets it for the mounting. Possibly a tunafish can if it can hold up to being pushed without colapsing. Lastly putting in cement in a tuna fish can and then pushing it if I cannot find a huge 3 1/2 inch bearing

Not that I can notice any damage on the pullye it is probably the first time the cerpentine belt is being changed the truck is a salvaged truck and it only has 52,000 miles on it otherwise runs like a top !!

the next longer belt is an inch longer than the one listed as the right one.

The Ford part number is jk6 891 and the Napa one is

well, just look at the numbers

Ford ends in '891' = 891 mm

NAPA and CQ end in 882 = 882 mm

that's 9 mm or just over 1/3 of an inch shorter

you need to buy it at Ford........................Napa and CQ sell them short cause they know it will stretch

Ohh, It's hard enough for me to convert fractions of an inch in 4ths, 8ths,

Now you've added thirds...

CJB

Next size down from 3/4" is 23/32nds.

yes I got it from Ford ford shows th 882 as the right one and the other one ids too long I did not get it the 891

so get the '891', put it on, and get on with life than 0.35430770866141" of belt

I could not measure but the actual belt was 888 and it measured a whole inch longer than the 882 donno why

that should read "get on with life; there are more important things than

what?

Tale the difference in millimeters and divide it my 25.4

This will give you the difference in inches. It sounds like you need a belt that is 10 to 15 mm longer. This makes it about 0.4 to 0.6 inches longer. A quick conversion is to use 0.2 inches for each 5 mm.

You definitely need help. It should be obvious that the belt you are trying to put on, is too short. All this talk of 3 1/2" bearings and cement filled tuna cans to *force* your belt on tells me that changing a serpentine belt is way out of your league. Pay someone with a brain to do it for you. Sheesh......... H

Most vehicles with this belt has a pully you can disengage allowing you to put the belt on with no trouble. Then you put the pully back to its original position and the belt is on with the proper tension. I've never had a problem with one.