Rod bearings after 9 years
#1
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Rod bearings after 9 years
So, I had to pull a piston after a darn valve train issue at the end of last summer. (partially my fault)
The piston and #3 exhaust valve got into a fight. Piston won but the valve put up a valiant fight.
I pulled my original 420's out in 2006 and rebuilt them. These were the first high performance engines
I had ever built. With the guidance of my head/engine builder and the use of his shop this is the what the
crank and bearings look like after 9 years. Not too bad seeing that the first 6 years these engines were
at anywhere between 5000-6500RPM's the majority of the time. Cruise RPM's were 4800 peak
TQ 5200RPM and peak HP 6500RPM.
[ATTACH=CONFIG]553246[/ATTACH]
.
[ATTACH=CONFIG]553247[/ATTACH]
.
[ATTACH=CONFIG]553248[/ATTACH]
The piston and #3 exhaust valve got into a fight. Piston won but the valve put up a valiant fight.
I pulled my original 420's out in 2006 and rebuilt them. These were the first high performance engines
I had ever built. With the guidance of my head/engine builder and the use of his shop this is the what the
crank and bearings look like after 9 years. Not too bad seeing that the first 6 years these engines were
at anywhere between 5000-6500RPM's the majority of the time. Cruise RPM's were 4800 peak
TQ 5200RPM and peak HP 6500RPM.
[ATTACH=CONFIG]553246[/ATTACH]
.
[ATTACH=CONFIG]553247[/ATTACH]
.
[ATTACH=CONFIG]553248[/ATTACH]
Last edited by Rookie; 03-30-2016 at 09:29 PM.
#3
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What are you using some alien space age bearings? That's like going to the moon and back with all the boating you do. Nice work! I bet you run a heavy clearances or change your oil frequently. Either way you've done well.
#5
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[ATTACH=CONFIG]553249[/ATTACH]
Last edited by Rookie; 03-30-2016 at 09:55 PM.
#6
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Rookie, instead of changing you oil at the beginning of every season, change when you put it away and make sure you start it and run it for 20 min (to circulate the new oil into all the lifters and such). This way the engine is stored with the best possible additive package your Mobil 1 can offer.
In the spring, just jump in and fire the motor up, no need to change the oil again.
Ken
In the spring, just jump in and fire the motor up, no need to change the oil again.
Ken
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