Cam Tensioner Stud - How deep to torque it?
03-04-2003, 10:58 AM
#1
Drifting
Thread Starter
Cam Tensioner Stud - How deep to torque it?
This might be a dumb question, but you can't be too careful, right?
Do you just torque the stud all the way in, until no more threads show? And how many lbs/ft do you torque it?
Thanks!
Do you just torque the stud all the way in, until no more threads show? And how many lbs/ft do you torque it?
Thanks!
03-04-2003, 12:09 PM
#2
Drifting
If you are refering to the hollow screw/chain tensioner (M8) bolt the Technical Spec. book calls for 10NM (or 7 ft/lb) the Hexagon Socket Screw for cam cahin tension (M6) is also 10NM (or 7 ft/lb). The M8 and M6 refer to the threads.Hope this helps.
03-04-2003, 03:57 PM
#3
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Craig,
You are correct about the torque for the cam chain tensioner parts. However, I think SM is using improper nomenclature. He doesn't have a cam chain tensioner or cam chain in his '86 951. I think he is refering to the stud that the cam belt tensioner attaches to. Unfortunately, I don't have my tech manuals available at work so I can't even look up the correct torque. SM BE CAREFUL when torquing anything into an aluminum block.
Max
You are correct about the torque for the cam chain tensioner parts. However, I think SM is using improper nomenclature. He doesn't have a cam chain tensioner or cam chain in his '86 951. I think he is refering to the stud that the cam belt tensioner attaches to. Unfortunately, I don't have my tech manuals available at work so I can't even look up the correct torque. SM BE CAREFUL when torquing anything into an aluminum block.
Max
03-05-2003, 10:24 AM
#5
Drifting
Max,
You're right. I didn't look to see what car he had. It's easy enough to look up since I have all the paperwork for the car in the house. If the tensioner bolt is an M10 then the book calls for 45NM (33 ft/lb). Just FYI, the general torque specs for "All other bolts and nuts" are: M6 8+2 NM (6+1 ft/lb); M8 20+2 NM (15+1 ft/lb); M10 40+5 NM (29+4 ft/lb). In addition to not making like the 500 pound gorilla (I hate when they do that) make sure you get the bolts threaded correctly, cross threading really sucks too.
You're right. I didn't look to see what car he had. It's easy enough to look up since I have all the paperwork for the car in the house. If the tensioner bolt is an M10 then the book calls for 45NM (33 ft/lb). Just FYI, the general torque specs for "All other bolts and nuts" are: M6 8+2 NM (6+1 ft/lb); M8 20+2 NM (15+1 ft/lb); M10 40+5 NM (29+4 ft/lb). In addition to not making like the 500 pound gorilla (I hate when they do that) make sure you get the bolts threaded correctly, cross threading really sucks too.
