Is any thread compound needed for the threads on my block coolant drain plugs?
05-07-2015, 06:27 PM
#1
Rennlist Member
Thread Starter
Is any thread compound needed for the threads on my block coolant drain plugs?
Hi!
Replacing my block coolant drain plugs and washers, and I wonder if I need
to apply any type of thread compound to the plugs?
Thanks!!!!
Dan
Replacing my block coolant drain plugs and washers, and I wonder if I need
to apply any type of thread compound to the plugs?
Thanks!!!!
Dan
05-07-2015, 07:21 PM
#3
Rennlist Member
Thread Starter
Thank you!
Dan
Dan
05-07-2015, 09:35 PM
#5
Rennlist Member
What ever you do do NOT tighten them back to spec, only do it until they are snug. Otherwise you will tear a chunk out of the block.
It has happened many times before, be careful. Otherwise just use some anti seize on them.
It has happened many times before, be careful. Otherwise just use some anti seize on them.
05-07-2015, 10:13 PM
#6
Rennlist Member
05-07-2015, 11:09 PM
#7
Rennlist Member
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05-07-2015, 11:15 PM
#8
Drifting
Yup that spec torque is frighteningly high. Last time I changed coolant I think I generously gave them 20Nm (think that's around 15 ft lb), which was a little past snug.
Oh when I first got the car I discovered block bolts were only finger tight. Hadn't lost a drop of coolant so they were sealing even with torque that low.
Oh when I first got the car I discovered block bolts were only finger tight. Hadn't lost a drop of coolant so they were sealing even with torque that low.
05-07-2015, 11:20 PM
#9
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Yes. Copper anti-seize.
No! The torque spec in the WSM and Spec books is wrong.
It's 26 Nm not 26 ft-lbs.
Spot on.
The very first time, closing-in on 20 years ago, when I tightened the drain plugs I started the first one with the torque wrench. WAY before the spec was reached I could see the crush ring deforming to the point that it was about to be 'squirted out.'
A couple of years ago I progressively torqued four drain plugs and determined that the crush ring seals nicely at 26 N-m.
Thus, I think there was a translation error - or something - in the WSM.
- be sure to re tighten to 25.8 Ftlbs when you put back in.
It's 26 Nm not 26 ft-lbs.
The very first time, closing-in on 20 years ago, when I tightened the drain plugs I started the first one with the torque wrench. WAY before the spec was reached I could see the crush ring deforming to the point that it was about to be 'squirted out.'
A couple of years ago I progressively torqued four drain plugs and determined that the crush ring seals nicely at 26 N-m.
Thus, I think there was a translation error - or something - in the WSM.
05-08-2015, 12:00 AM
#10
Team Owner
05-09-2015, 06:12 PM
#12
Rennlist Member
Newton-meters - might as well be Galileo-furlongs to me. Geez, ya told us the first time, in language we could understand.
PSA: IMO, the torque spec for the block drains is wrong!
Why is it that getting the knowledge out of Rennlist is like getting it out of a medieval alchemist's library, dust and piles of books and searching and you find a piece and then bats and you find another piece and mumble, mumble, curse and yada yada ......
These two threads have great, if terrifying, block drain PIX, btw.
https://rennlist.com/forums/928-foru...ieve-this.html
I'm f*cked - You're not going to believe this
https://rennlist.com/forums/928-foru...need-help.html
If it's not one thing it's another, need help!!!