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Brazing cam gear oil grooves |
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BU1 
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Joined: Aug/11/2016 Location: MN Status: Offline Points: 2012 |
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 Topic: Brazing cam gear oil groovesPosted: Jan/20/2021 at 11:15am |
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Have read much here and at other places on the interweb about this. Have heard ideas of welding all of them, and some leave maybe 1 slot open.
If brazing, should the whole gear be preheated first to alleviate any cracking from the torch work? I didn't come across any real proof of a JB or epoxy type product with a track record of working for this. Can anyone share experience with this option?? Thanks to all.
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AMO #2726
#1 1968 AMX Rally Green 343 Z code 4spd since 1975 #02642 #2 1968 AMX Rally Green 290 N code 4spd since 2019 #02959 |
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RobinPDX
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Joined: Dec/07/2020 Location: Oregon Status: Offline Points: 191 |
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Posted: Jan/20/2021 at 7:37pm |
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Oh ya, heat it up uniformly to prevent deformation stress on welds.
As far as recreating new bypass slots, I would make two, 180 degree opposite , after all brazed up. About the size width of a hacksaw blade to allow oiling on the surfaces. |
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Rob Wiley
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SC397
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Posted: Jan/20/2021 at 9:24pm |
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I put them in my toaster oven at max for 45 min then braze all but the slot at the key way shut. Then I grind them smooth.
Edited by SC397 - Jan/20/2021 at 9:28pm |
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BU1
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Posted: Jan/20/2021 at 9:49pm |
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Thank you!!!
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AMO #2726
#1 1968 AMX Rally Green 343 Z code 4spd since 1975 #02642 #2 1968 AMX Rally Green 290 N code 4spd since 2019 #02959 |
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RobinPDX
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Posted: Jan/20/2021 at 11:00pm |
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There is a YT video of someone whom took the TC cover, cut it open to expose the oils extrusion as when like running, then ran the pump with a drill. No idea what the TC Gear backside was like though.
One Idea Is to get one of those Boroscope devices for about 50 bucks. Put the TC in and do the Mod like you did. Prime pump with drill and view what actually occurs in oil flow with scope, once assembly is put together. For ever ppl just trusted it was correct and did OK actually. What this Very topic needs is somebody to do just that As I suggested and put a lot of questioning on it to bed!
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Rob Wiley
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jcisworthy
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Joined: Jul/23/2009 Location: North Carolina Status: Offline Points: 2805 |
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Posted: Jan/21/2021 at 1:07am |
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Not necessary waste of time in my opinion.
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Specializing in dyno services, engine building, and cylinder head porting
rbjracing.com Phone Number 518-915-3203 |
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turdferguson
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Joined: Sep/28/2021 Location: Lombard, IL Status: Offline Points: 90 |
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Posted: Sep/29/2021 at 9:54am |
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I read in another thread that the stock gear has no oiling grooves, can anyone confirm this?
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madams
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Posted: Sep/29/2021 at 1:04pm |
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Stock gear does have a single oil "notch" that supplies the distributor drive gear on the cam. Below is probably the most thorough discussion on distributor lubrication on the Forum
Edited by madams - Sep/29/2021 at 1:08pm |
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turdferguson
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Posted: Sep/29/2021 at 3:38pm |
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Thank You, that is some great information, wish I had it 15 years ago!
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RobinPDX
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Posted: Sep/29/2021 at 4:05pm |
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This is a very good info source you were linked to.
The video that was deleted", was just a Boro-scope probe that displayed Adequate amounts of oil spilling on the Dist / TC gears, after this TC Gear Mod was performed, nothing really special. |
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Rob Wiley
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