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> Push-Rod Tube Leaks., Is there a trick / technique that works ?
Beebo Kanelle
post Sep 30 2016, 04:24 PM
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Need a little wisdom. I installed one of Chris's exhaust systems ( It works beyond a expectations!!!! ) and pulled the push-rod tubes so I could install new Viton O-Rings.

Now, I have two tubes that leak. I watched my trusty Raby Type IV rebuild DVD and first time, straight motor oil. The second time I tried a dab of grease. Both to no avail.

These leaks are tiny; just a drop every 3-5 minutes... but one of them is dripping onto the header!

Are there any secrets ? mystery goo / sealers to use.

Any and all advice is greatly appreciated.
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Dave_Darling
post Oct 1 2016, 12:08 AM
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Clean the bores where the O-rings go thoroughly. Make sure they are smooth, with no casting lines or anything else to snag on.

I do not recommend any sealant that hardens. Like RTV. The tubes are supposed to slide in and out of the head; the wire retainers push them in toward the center of the engine but the outer end has to be able to slide in the bore. RTV as shown in Elliot's pic will eventually fail. I'm frankly surprised that it hasn't failed already...

--DD
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Beebo Kanelle   Push-Rod Tube Leaks.   Sep 30 2016, 04:24 PM
cary   I used NAPA/Permatex Thread Sealant w/Teflon #765-...   Sep 30 2016, 05:10 PM
The Cabinetmaker   +1 on the Teflon thread sealant.   Sep 30 2016, 05:44 PM
Elliot Cannon   High temp RTV. Works great. Just be careful to c...   Sep 30 2016, 06:00 PM
r_towle   High temp RTV. Works great. Just be careful to ...   Oct 1 2016, 11:27 AM
mark04usa   As the Cap'n rolls in his grave. :agree: ...   Oct 1 2016, 03:12 PM
rjames   :agree:   Oct 1 2016, 03:15 PM
Elliot Cannon   As the Cap'n rolls in his grave. :agree: ...   Oct 1 2016, 03:55 PM
injunmort   i use hylomar on the seals before installing. yo...   Sep 30 2016, 06:27 PM
Beebo Kanelle   Thanks to everybody. I'm on it.   Sep 30 2016, 07:07 PM
Krieger   I did mine exactly like Elliot's except I used...   Sep 30 2016, 11:57 PM
Dave_Darling   Clean the bores where the O-rings go thoroughly. ...   Oct 1 2016, 12:08 AM
Elliot Cannon   Clean the bores where the O-rings go thoroughly. ...   Oct 1 2016, 03:51 PM
r_towle   I know how you feel Elliot but if you use the corr...   Oct 1 2016, 04:12 PM
914_teener   Use the viton seals with the pushrod tubes. What...   Oct 1 2016, 04:37 PM
injunmort   i used the victor reinz seals that came in the eng...   Oct 1 2016, 04:46 PM
r_towle   I am sorry I don't remember the details, but i...   Oct 1 2016, 04:47 PM
mark04usa   Buy both types of seals. The green ones fit perfe...   Oct 1 2016, 06:09 PM
porschetub   Buy both types of seals. The green ones fit perf...   Oct 2 2016, 02:22 AM
mark04usa   Regardless of whoever "FAT Performance" ...   Oct 2 2016, 01:52 PM
Elliot Cannon   I'm sure FAT Performance used the correct seal...   Oct 1 2016, 05:45 PM
injunmort   ^ and they leaked   Oct 1 2016, 06:39 PM


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