Zootal Posted April 7, 2014 Share Posted April 7, 2014 1994 Subaru Legacy When I removed the water pump, I found a few of the bolts were loose - two were finger tight/lose and I just unscrewed them with my hands. I found this to be very disturbing because I was the one that installed the pump several years ago. I really don't remember if I torqued them or just guessed at it. So anyhow fast forward to installing the new pump. The bolts are small and I've developed a healthy appreciation for stripped threads. So my questions: What is the torque for these bolts, and any advice to 1) keep the threads from stripping, and 2) keep them from coming loose again? LIkewise, any idea as to torque for thermostat housing? Link to comment Share on other sites More sharing options...
johnegg Posted April 7, 2014 Share Posted April 7, 2014 you need to get a manual, either a haynes which not many folks like or down load a free one from: http://legacygt.com/forums/showthread.php/second-gen-factory-service-manuals-literature-186552.html if you are like me, at some point you are going to get impatient waiting on an answer and then make a mistake. did any of the bolts have metal filings on them? if stripped, you may be able to use a slightly longer bolt. there are likely more unused threads at the bottom of the hole. the other solution is to use a helicoil kit. the torque for these is very low. do not over torque. Link to comment Share on other sites More sharing options...
Zootal Posted April 7, 2014 Author Share Posted April 7, 2014 The threads were clean, no sign of stripping at all. Some of the bolts had gunk and rust on the part that was not in the threads due to water pump gasket leakage. I'm tempted to just pickup a set of new bolts, but I cleaned them and ensured they would all bottom out in the holes with just hand tightening so they will probably be OK. I've seen these little bolts strip before (actually, the holes they go in, not the bolts), and I've done heli coil repair before, but that can be painful when there is not a lot of room to work. Not sure how close together the torque specs and the strip point are. Sometimes they are a bit closer than I would like, I have (not very) found memories of doing a brake job and stripping the caliper threads before it even got to the proper torque. Once bitten, thrice shy or something like that... Link to comment Share on other sites More sharing options...
Idaho subaru Posted April 7, 2014 Share Posted April 7, 2014 Torque for a '95 is like 8.7 ftlbs, or 100 inch lbs. I use a 1/4" drive torque wrench on everything 12mm or less. http://legacygt.com/forums/showthread.php/second-gen-factory-service-manuals-literature-186552.html Link to comment Share on other sites More sharing options...
spooln30 Posted April 11, 2014 Share Posted April 11, 2014 Yeah it is very easy to over tighten smaller bolts. I usually tq the important parts and over the 15 years fixing vehicles for a living I can tell by feel when a bolt or nut is tight and probably a couple ft lbs or inch lbs of the actual spec. You just get used to this over the years. Link to comment Share on other sites More sharing options...
Zootal Posted April 11, 2014 Author Share Posted April 11, 2014 I broke down and bought an inch-pound torque wrench...one stripped hole is one too many.... I didn't see torque for thermostat housing, though I may have missed it. Short bolts into an aluminum/pot-metal housing. I'm guess 5 ft-lbs or so.... Link to comment Share on other sites More sharing options...
Zootal Posted April 12, 2014 Author Share Posted April 12, 2014 Drum roll please.....install water pump....get out inch pound torque wrench....torque to 96 inch pounds....done! Much ado over nothing.... Link to comment Share on other sites More sharing options...
spooln30 Posted April 12, 2014 Share Posted April 12, 2014 You don't necessarily need a inch lb tq wrench. A foot pound tq wrench with a range from 5 ft lbs up will work just fine for most automotive applications. You just divide what ever the inch lbs by 12, so if you have 96 inch lbs it would be 8 ft lbs if divided by 12. I own a few tq wrenches for various applications. Link to comment Share on other sites More sharing options...
Osei Posted April 14, 2014 Share Posted April 14, 2014 If you are concerned about the actual torque settings, then get an inch pound covering the range you need. There are a few less than $100. Crafstman has a wrench that goes from 25-250 INCH lbs. Don't get something that the 5 ft- lb range is at the lowest setting, it won't be accurate at that poundage. O. Link to comment Share on other sites More sharing options...
spooln30 Posted April 14, 2014 Share Posted April 14, 2014 Yeah they will. Like I said I have a few tq wrenches, foot lbs and inch pounds and the ft lb wrench is dead accurate at 5 lbs. If you take care of them and not leave them set at the last setting they will remain calibrated for a long time. Btw in reality how many nut or bolts on a average car actually have specs at or lower then 5 ft lbs? Not many and any one who knows how to work on cars should be able to tighten a nut or a bolt at 5 lbs without the need for a tq wrench. Link to comment Share on other sites More sharing options...
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