Oil Pan Bolt Torque Value? ST1300

Knowing this forum this is probably another moly thread, but I have always thought that the 22 ft lb number is a potential strip it situation. That's a pretty standard spec for Honda motorcycles in the FSM..
Typically I go by feel, but guessing, I'm probably around 17 ft-lbs. I've been wrench'n a lotta years and never had a problem doing it like this.
 
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Uhhh, hang on a minute guys. You guys are quoting typical specs for the oil DRAIN bolt. He was asking for the torque for the oil PAN bolts. 6mm threads vs 14mm threads. Guess which is going to lose at 17-22 ft/lbs. I don`t have the manual near me, anyone else?
 
Rhubarbray said:
Uhhh, hang on a minute guys. You guys are quoting typical specs for the oil DRAIN bolt. He was asking for the torque for the oil PAN bolts. 6mm threads vs 14mm threads. Guess which is going to lose at 17-22 ft/lbs. I don`t have the manual near me, anyone else?
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Oh, didn't catch that.... yeah 6mm will eat it at 17 - 22 ft lbs. 10 is fairly typical for 6mm.. I don't have an ST FSM.... I'll check what's in the VFR manual....
 
Looked in VFR FSM --- found the oil pan install page and it doesn't list a spec.. If I'm picking a number I'm going 10ft-lbs and slowly sneak up to that in 3 increments with a criss cross pattern on the bolts and blue loctite on the treads. That one is definitely a finesse job..


Thxz Rhubarbray....
 
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For the 6mm sump mounting bolts - 7 ft-lb is standard (as it is for just about any fastener of that diameter.

I am a big fan of torque wrenches because they have two key functions:
  1. They can (if properly calibrated) enable the user to achieve a specific degree of fastener tightness on a given fastener;
  2. Even if the wrench is not perfectly calibrated, they can ensure that all of the fasteners in a pattern that must seal a fluid in (or out) are all tightened evenly.
In the case of something like an oil pan/sump the second function is every bit as important as the first. If the pattern is not tightened evenly, the thing could (and usually will) leak.
 
jfheath said:
The oil pan information is in section 4 of the service manual - Lubrication System - page 4-9 in my copy. It quotes 12Nm, 9 lbf-ft. for the 14 oil pan bolts.

For reference, the service manual has 4 places where it may (or may not) show the torque values for specific bolts:
  • On the diagrams;
  • in the text alongside the diagrams (usually in bold);
  • at the start of each section of the manual;
  • in Section 1 of the manual (General Information).
In my UK 2003-2004 manual, this starts at Page 1-12 - but later versions of the manual may be different.

For others bolts that aren't listed, the manual says to use the standard torque settings - and shows the table below. This is from a 2003-2004 manual. If anyone has a later manual it would be good to see if they correspond !!

View attachment 241454

The torque settings are sometimes shown incorrectly in my manual, so it is a good idea to check all 5 places to make sure that they give the same figure. I have come across a few discrepancies over the years. Also compare the metric Nm torque setting with the lbf ft torques setting, to make sure that they correspond. The lbf ft value should be approximately 3/4 of the Nm value. Conversely the Nm value should be roughly one and one third time the lbf ft value (eg 9 lbf-ft = 12Nm approx).
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@jfheath - For what it's worth - the above table matches the Honda shop manual as of 2018. :thumb:
The pan torque values are on page 4-10 in the newer manual due to variations in how the open air, fuel tank drain, and water pump bleed hoses are routed and mounted. (There are " '03 - '07: " and " After 07: " comments.)
 
9 foot lbs. or 108 inch pounds.
I have removed my oil pan 3 X's. Use inch pound torque wrench=Mac tool.
 
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