rlp in Co.
Well-known Member
For a 1978 Ford 550 backhoe. I looked on
the internet and one says 101 and another
says 110.
the internet and one says 101 and another
says 110.
- Thread starter rlp in Co.
- Start date
Destroked 450
Well-known Member
- Location
- Harned, Ky
My factory service manual calls for 110 lbs
Sean in PA
Well-known Member
The 550 had the same 201 engine as the 4600 and the 3 cylinder 4000 before it. My manual for the 65-75 4000 (and all 65-75 3 cylinder engines) says it should be done in 3 steps:
First step is all bolts to 50-60 Ft.-Lbs.
Second step is all bolts to 80-90 Ft.-Lbs.
Third step is all bolts to 105-115 Ft.-Lbs.
Also says "Note: Torque values are given for lubricated threads. Tighten cylinder head bolts only when engine is cold."
First step is all bolts to 50-60 Ft.-Lbs.
Second step is all bolts to 80-90 Ft.-Lbs.
Third step is all bolts to 105-115 Ft.-Lbs.
Also says "Note: Torque values are given for lubricated threads. Tighten cylinder head bolts only when engine is cold."
rlp in Co.
Well-known Member
Thanks a lot!
rlp in Co.
Well-known Member
I appreciate that very much!
Sean in PA
Well-known Member
If you don't have a service manual you should get one. The I&T aftermarket manual is usually around $30.00 on lots of places on the internet. There's tons of valuable information.
For instance, it also gives specifics about the order that you tighten the bolts, starting with the pair in the center and then moving to the next ones forward from center and then the next pair toward the rear from center, then alternating to the next pair forward, the next pair rearward, etc. until all of them are tightened to the specified torque, do that 3 times for the 3 passes to the different torque ranges listed.
For instance, it also gives specifics about the order that you tighten the bolts, starting with the pair in the center and then moving to the next ones forward from center and then the next pair toward the rear from center, then alternating to the next pair forward, the next pair rearward, etc. until all of them are tightened to the specified torque, do that 3 times for the 3 passes to the different torque ranges listed.
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