|
Re: nylon timing gears in 72 307
I have replaced three of these before disaster (JUST before disaster once, by the look of the gear) and know I NEED to go ahead and do the same on a two or three other original unopened SB/BB engines that are over 90K - just a matter of time.
It does not seem too tough - rad out, fan assembly off, pull balancer, off with the pan - new seal and gasket going back together. I have used steel wheel and new chain (I think double) and love the peace of mind when done.
Have never felt need to drop oil pan and look for debris, and oil pressure has stayed good - but did high pressure spray some kerosene up all around in the pan to try a flushout and got a few little pieces of stuff. Maybe was worth it.
Best wishes, CCCC
__________________
CCCC
67 Sting Ray Coupe 327 4sp; 68 K10 Suburban 327 4sp; 69 K20 Lifted 383 4sp; 69 C80 Fire Truck 478 V6 5sp/2sp; 69 C20 Longhorn 327 4sp; 70 C30 Wrecker 350 4sp; 70 C30 Flat Bed 350 4sp; 71 C20 LWB 350 4sp; 72 K5 Blazer 350 4sp; 72 C30 Flat Bed Gooseneck Hauler with sleeper 350/TH400; 72 C20 Longhorn 402 4sp; 52 Mack LTL Supercharged Cummins 5sp x 3sp; 01 Dodge 5.9 HO Cummins 6spd; 02 Safari Trek 2430 8.1 Vortec on Workhorse Chassis; 03 Silverado 2500 HD 4wd Duramax/Allison
Moved but still in the family
70 C20 Custom Camper 350/TH350; 72 K5 Blazer CST Highlander 350/TH350
Recently sent to new homes
72 C30 MoHome 402 4sp; 72 K5 Blazer Conv 350 4sp; 75 GMC 6000 Aerial 350 w Allison; 72 GMC 3500 Utility 350 4sp; 70 GMC 3500, 350 4sp
|