Timing belt tensioner bolt thread locker?
05-13-2016, 10:32 AM
#1
Three Wheelin'
Thread Starter
Timing belt tensioner bolt thread locker?
In reading Dwayne's most excellent timing belt replacement write-up, I noticed that the adjuster bolt for the illustrated tensioner had blue thread locker (?) clearly visible on the bolt threads. My Bolt also had evidence of some blue material in the threads. Is this material actually thread locker ? Is it necessary? Why would it be required since there is a locking nut? Does it lock the locking nut in place ? When would you actually apply it? After the 2000 mile re-tension ?
05-13-2016, 10:36 AM
#2
Nordschleife Master
It's not blue loctite but a thread sealant.
I've put them on with both nothing and copper anti-seize. I've got another one on the bench right now and was wondering what's really correct.
I've put them on with both nothing and copper anti-seize. I've got another one on the bench right now and was wondering what's really correct.
05-13-2016, 01:00 PM
#3
Rennlist Member
In reading Dwayne's most excellent timing belt replacement write-up, I noticed that the adjuster bolt for the illustrated tensioner had blue thread locker (?) clearly visible on the bolt threads. My Bolt also had evidence of some blue material in the threads. Is this material actually thread locker ? Is it necessary? Why would it be required since there is a locking nut? Does it lock the locking nut in place ? When would you actually apply it? After the 2000 mile re-tension ?
05-13-2016, 01:39 PM
#4
Former Sponsor
In reading Dwayne's most excellent timing belt replacement write-up, I noticed that the adjuster bolt for the illustrated tensioner had blue thread locker (?) clearly visible on the bolt threads. My Bolt also had evidence of some blue material in the threads. Is this material actually thread locker ? Is it necessary? Why would it be required since there is a locking nut? Does it lock the locking nut in place ? When would you actually apply it? After the 2000 mile re-tension ?
05-13-2016, 02:24 PM
#5
Three Wheelin'
Thread Starter
05-13-2016, 02:48 PM
#6
Nordschleife Master
I'm working on an '87 tensioner and it has a little valve in the "piston." Makes me wonder what the o-ring around that is for.
05-13-2016, 02:55 PM
#7
Three Wheelin'
Thread Starter
Good point. That could be a source of leak behind the larger cylinder. I didn't replace that little o-ring. Just the larger one. Sounds like I'll be using thread sealant on the tensioner bolt
Last edited by mj1pate; 05-13-2016 at 02:58 PM. Reason: Updated
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05-13-2016, 03:13 PM
#8
Team Owner
the tensioner adjuster bolt needs a thread sealant to prevent the oil from leaking out,
the O ring seals the piston to the bore,
the piston has a bleeder valve to let the oil flow from infront to behind it,
this gives it a dampening factor.
NOTE if you remove the bolt, some of the oil will run out the tensioner bolt hole
the O ring seals the piston to the bore,
the piston has a bleeder valve to let the oil flow from infront to behind it,
this gives it a dampening factor.
NOTE if you remove the bolt, some of the oil will run out the tensioner bolt hole
