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Offline Tiny Tim

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Patch Locked Screws
« on: December 22, 2015, 02:55:42 pm »
I will be removing the fascia at sometime in the future and was doing some prep ahead of the project.

I noticed in Triumph's PDF instruction for fitting the Sat Nav mount (which includes removing the fascia) that two screws are Patch Locked and must be discarded (and I assume replaced with new screws).

"When removing the instrument fascia, the two
inner screws adjacent to the upper windscreen
arms, which retain the instrument fascia to the
cockpit front panel, are patch-locked. These
screws must be discarded."

Can anyone elaborate please?
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Regards

Tiny Tim

Offline silverstripes

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Re: Patch Locked Screws
« Reply #1 on: December 22, 2015, 03:47:27 pm »
Hi Tim. Yes the kit includes two replacement bolts for you to use. These are coated in a threadlock. The old ones when removed are coated and I assumed when I did mine that the new ones are coated in the same threadlock that Triumph use.

I would imagine that any proprietary threadlock would also be ok.

Does this help
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Offline Coconut

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Re: Patch Locked Screws
« Reply #2 on: December 22, 2015, 03:55:27 pm »
There are quite a few screws and bolts dotted around the Trophy,
that Triumph recommend are replaced with a new one after removal,
rather than being re-used, as per various instructions in the Service Manual,
and these all apear to be "patch-locked",
i.e. they have had some sort of thread locking compound used on them.

Other than bolts that are tightened "VERY" tight, and which might therefore
have less strength if re-used, the general concensus of opinion seems to be
that iit is OK to lcean up some of these bolts and re-use them
after applying some suitable fresh locking compound.

Cheers  :821:

« Last Edit: July 27, 2017, 08:53:07 pm by Coconut »

Offline janfmiller

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Re: Patch Locked Screws
« Reply #3 on: December 22, 2015, 03:59:10 pm »
I had the front fairing replaced on my TTSE as it was blemished.  Later I had reason to remove the screws and they appeared to not be 'new' though the threadlock coating was still visible, so I think the shop reused the old screws and did not apply any threadlocker.

That said, I re-use external Patch-Locked fasteners, but apply Blue Loctite...    If it was something internal to the engine or super-buried in the tupperware, I would buy a new fastener...

Speaking along the same lines, I've had to tighten up my crankcase bolts twice now to stop weeping oil...  Anyone else??



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Offline Zebraranger

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Re: Patch Locked Screws
« Reply #4 on: December 22, 2015, 04:39:14 pm »
Speaking along the same lines, I've had to tighten up my crankcase bolts twice now to stop weeping oil...  Anyone else??
I had to do the same thing for the same reason a couple of months back, all is good. Had to do the same thing on my two previous Triumphs, a Bonneville and a Sprint ST.

Offline BigD

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Re: Patch Locked Screws
« Reply #5 on: December 23, 2015, 01:36:50 pm »
I just reused the original screws and used blue Loctite.   Saved the new screws that came with the kit for another day.

Offline earthman

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Re: Patch Locked Screws
« Reply #6 on: December 24, 2015, 09:20:27 am »
I've reused bolts before on other bikes, (non critical items) and just used a locking fluid, no problems.

I'm more concerned about you chaps who have had oil seeping out,...how common is this?

Offline Ray_B

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Re: Patch Locked Screws
« Reply #7 on: December 24, 2015, 04:41:58 pm »
I have 28k miles on my '13 TT with not a speck of leakage so far.
Ray

 



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