Re: Bronze gear wear
[Re: moparx]
#3057366
07/08/22 10:20 AM
07/08/22 10:20 AM
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Joined: Jan 2005
Posts: 4,404 Michigan
MarkZ
Worthy
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Worthy
Joined: Jan 2005
Posts: 4,404
Michigan
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Bronze gear on 20w50 with a standard pump: what time frame/use/passes did that gear have ? my thoughts are, where do the gear particles cause the most damage to the rest of the internals ? 2.5 years, six passes and roughly 3k miles. Cold oil pressure would run 80 PSI. After the change from 20w50 to 10w40 cold pressure is something like 65 and hot idle is 25. Been checking the gear every Spring since and it looks like it's wearing OK. Don't drive the car too much anymore though. No idea what the clearances are in the motor. Would have to find the paperwork from the shop.
1987 Fifth Avenue - 512/518/D60
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Re: Bronze gear wear
[Re: Mopar493]
#3062929
07/27/22 09:01 AM
07/27/22 09:01 AM
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Joined: May 2019
Posts: 712 Lake Villa Il
INTMD8
super stock
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super stock
Joined: May 2019
Posts: 712
Lake Villa Il
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An update to this thread i start. I changed the gear and bushing, i changed to Hughes "melonized" gear and i have drive it for about 800 miles more now and checked it, it has no visible wear at all now on both intermediate shaft gear or the gear on the cam and i drive this engine with a Milodon high volume/high pressure pump, external oiling and Valvoline vr1 20w-50. Hot engine just over 20 psi idle, 2000 rpm just over 40 psi, 3000 rpm 60 psi and so on. Main clearance 0.0033" rods 0.0028" and pushrod oiling aswell as oiling from number 4 cambearing through the rocker shaft. Its running great. Looks nice to me as well.
69 Charger. 438ci Gen2 hemi. Flex fuel. Holley HP efi. 650rwhp @7250 510rwtq @5700
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Re: Bronze gear wear
[Re: Stanton]
#3062944
07/27/22 09:47 AM
07/27/22 09:47 AM
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Joined: Mar 2011
Posts: 3,069 Michigan
A727Tflite
master
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master
Joined: Mar 2011
Posts: 3,069
Michigan
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To me the cam looks to be extremely worn in the are area indicated. I've never seen a tooth profile like this. The profile of the cam teeth should match those on the intermediate gear which has a "V" pattern
The teeth have a bevel so it looks like wear. Look at the lowest tooth to the right, down low.
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Re: Bronze gear wear
[Re: Stanton]
#3063021
07/27/22 02:15 PM
07/27/22 02:15 PM
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Joined: Aug 2003
Posts: 43,124 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,124
Bend,OR USA
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if it "ain't" making metal (in the oil and oil filter) your probably good: luck: Keep us in the loop please I bought several of those gears for both BB and SB earlier this year and hope to use one on a BB soon
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Bronze gear wear
[Re: Stanton]
#3063040
07/27/22 03:29 PM
07/27/22 03:29 PM
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Joined: Dec 2019
Posts: 138 Sweden
Mopar493
OP
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OP
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Sweden
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To me the cam looks to be extremely worn in the are area indicated. I've never seen a tooth profile like this. The profile of the cam teeth should match those on the intermediate gear which has a "V" pattern
In that case the cam gear was worn out as new. The gear looks the same when i installed the cam new. See the added pic with the cam installed with a bronze gear, its the same.
Last edited by Mopar493; 07/27/22 03:40 PM.
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Re: Bronze gear wear
[Re: Cab_Burge]
#3063048
07/27/22 03:46 PM
07/27/22 03:46 PM
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Joined: Dec 2019
Posts: 138 Sweden
Mopar493
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if it "ain't" making metal (in the oil and oil filter) your probably good: luck: Keep us in the loop please I bought several of those gears for both BB and SB earlier this year and hope to use one on a BB soon No metal in oil, but it sure was with the bronze "sacrificial" gear
Last edited by Mopar493; 07/27/22 03:50 PM.
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Re: Bronze gear wear
[Re: Cab_Burge]
#3081964
09/30/22 11:48 AM
09/30/22 11:48 AM
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Joined: Dec 2019
Posts: 138 Sweden
Mopar493
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if it "ain't" making metal (in the oil and oil filter) your probably good: luck: Keep us in the loop please I bought several of those gears for both BB and SB earlier this year and hope to use one on a BB soon An update again about the melonized gear, i have drive it for another 1200 miles and the melonized gear looks same as new, no visible marks at all, same with the cam gear and nothing in oil or oil filter. So about 2000 miles with the melonized gear so far and no wear at all. I drive the milodon high volyme pump with external oiling and Valvoline vr1 20w-50.
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Re: Bronze gear wear
[Re: LAD 524]
#3082228
10/01/22 01:40 PM
10/01/22 01:40 PM
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Joined: Dec 2019
Posts: 138 Sweden
Mopar493
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Good news, thanks for the update.
I just installed one in mine and fired it yesterday with a new roller cam install.
Will drive a couple of times then pull it to check. Im sure it will be just fine. They are so incredible much better than the bronze gear, no signs of wear after 2000 miles, the bronze was toasted after 600 miles.
Last edited by Mopar493; 10/01/22 01:40 PM.
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Re: Bronze gear wear
[Re: fast68plymouth]
#3082306
10/01/22 04:56 PM
10/01/22 04:56 PM
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Joined: Aug 2011
Posts: 2,853 Pattison Texas
CSK
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master
Joined: Aug 2011
Posts: 2,853
Pattison Texas
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I have been running the Hughes Melonized gear for about 6k miles, I checked it at about 5k & it was like new
Last edited by csk; 10/01/22 04:56 PM.
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
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Re: Bronze gear wear
[Re: Mopar493]
#3082587
10/02/22 10:09 PM
10/02/22 10:09 PM
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Joined: May 2007
Posts: 1,443 Maryland
Dads426
pro stock
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pro stock
Joined: May 2007
Posts: 1,443
Maryland
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I probably go through 1 bronze gear every two years on a 493, HV oil pump, NSS car. My machinist suggested the melonized gear, but when I contacted Hughes, they said it would wear the cam (custom solid roller), so I elected to just stock up on the bronze gears.
2012 422 Allstars NSS Champion 2013 422 Allstars NSS Champion 2014 422 Allstars NSS Champion
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Re: Bronze gear wear
[Re: fast68plymouth]
#3082840
10/03/22 01:28 PM
10/03/22 01:28 PM
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Joined: Dec 2021
Posts: 1,118 Loudoun County, VA
Brad_Haak
super stock
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super stock
Joined: Dec 2021
Posts: 1,118
Loudoun County, VA
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I like what I’m seeing here!! Same here... cuz I swapped the dyno-only bronze gear for a Hughes/Crane melonized piece before the engine went back in
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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Re: Bronze gear wear
[Re: Mopar493]
#3127459
03/08/23 08:18 AM
03/08/23 08:18 AM
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Joined: Dec 2019
Posts: 138 Sweden
Mopar493
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An update about the melonized drive gear after one season and about 3000 more miles it still looks great. It only has a nice wear pattern. Same with the cam gear.
Last edited by Mopar493; 03/08/23 08:26 AM.
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Re: Bronze gear wear
[Re: Mopar493]
#3127463
03/08/23 08:48 AM
03/08/23 08:48 AM
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Joined: Mar 2003
Posts: 2,496 PA
moparacer
top fuel
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top fuel
Joined: Mar 2003
Posts: 2,496
PA
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I posted about my wear issues I had awhile back in this thread and I may have found my issue over the winter. I had cam walk from timing cover flex. Welded a support on the cover to stiffen it up so I think that will fix the cam walk. Be interesting to see if the gear wear goes away. I suspect it will.
67 Barracuda street/bracket car 11.27-119 68 Dart 502 BB 8.70s-152 414 cid SB Dragster 7.65-174
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