Is this an issue?
Stellar HDF Member
Joined: Aug 2012
Posts: 2,664
Likes: 184
From: Indiana, USA
IMO - It wouldn't leak because the O-Ring that fits inside the taper will be sealing against the OD of the upper tube which slides down beyond this point like a funnel. Oil would have to take a tortuous path down the tube, up between the tubes and past the O-Ring to leak.
But, if I'm wrong you may be required to pull the tube ASM apart to clean up the oily mess to get the RTV to seal...... May be good insurance now to apply the silicone at assembly just to be sure.
But, if I'm wrong you may be required to pull the tube ASM apart to clean up the oily mess to get the RTV to seal...... May be good insurance now to apply the silicone at assembly just to be sure.
Stellar HDF Member
Joined: May 2018
Posts: 2,171
Likes: 435
From: australia
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Stellar HDF Member
Joined: Aug 2020
Posts: 3,182
Likes: 2,225
From: College Station, TX
I'd change it if it were mine. There isn't a lot of oil there, but with the vibration it's hard to say what will happen. Including the split getting larger.
If you don't have a replacement, put a little non hardening sealer on that spot when assembling and rotate it to the back a little if you don't want it to be seen.
Paul
If you don't have a replacement, put a little non hardening sealer on that spot when assembling and rotate it to the back a little if you don't want it to be seen.
Paul
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Road Captain
Joined: Jul 2021
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From: BRIGHTON, ENGLAND
Club Member
Joined: Mar 2009
Posts: 66,125
Likes: 51,446
From: Niles Canyon Ca.
Use corks instead of an o-ring there and it should be fine.
If it's a situation where a bit of sealant is the only way it's gonna seal up use Hylomar not silicon. Some aftermarket lifter blocks that front exhaust tube it's the only way to get it oil tight.
If it's a situation where a bit of sealant is the only way it's gonna seal up use Hylomar not silicon. Some aftermarket lifter blocks that front exhaust tube it's the only way to get it oil tight.