LUVTruck.com

Just ask Jerry Lemond about Isuzu C223 con rods and over-revving.

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Bona Fide diesel fanatic.
1994 Chev S10 Ext Cab Isuzu Diesel 5spd
Kubota B6100 HST diesel

What he said!

I do know that the turbo'd C223 rods are stronger than the non-turbo'd ones, might be a base for making the bottom end stronger

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'80 Luv 4x4, 3" BL, 1.5" SL, 32/36, 2.25" exhaust...and fuzzy dice.
'95 Toyota 4Runner Limited 5-Speed.

Tell me what happened, what were the circumstances of said rod failure?

If I may, Jerry, to save you the trouble, and to Quote your quote....


. depending on the rear end gear in your truck somewhere in the 3.40 to 3.73 range and keep the rpm below 3-3500 and even the small rods will last a long time , what happened to these eng when in the troopr, which came with 4.55 gears as soon as the turbo would start building boost at around 2- 2500 rpm if you weren,t careful the eng would go rite to 4800 or higher , even though the pmp has a mech, governor that is suppossed to limit the rpm to 4200 it would reve so fast from 3500 up that it would shoot rite past the gov weights , and the eng would just keep going , after a few times of this the rod bolts would stretch and the one that came loose first would then rock or hinge back and forth on the still tight rod bolt untill it broke and then kaboom, i have saw these things break rods or rather crack them rite at the big end rite where the i beam starts and not break the bolts and they can usually be saved , they will make a loud pop sound and if you know what to listen for no biggie , but if the eng is turning any big no,s. you can kiss it good by . judicious use of the throttle and the eng will last an incrediably long time , hot rodding one be prepared to walk .. jerry


This was from a post reply from Jerry in 1994.
I hope this helps.

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Bona Fide diesel fanatic.
1994 Chev S10 Ext Cab Isuzu Diesel 5spd
Kubota B6100 HST diesel