Cam & Distributor Gear Wear What needs to be inspected?

[stroker87]

Well the cam & distributor gears are shot in my engine I'll be taking it apart but what all should be inspected?

does or should the hole engine be disassembled?

I'm hoping I dont have to remove the heads and crank, but if it should be I will

can I use my currant hydrualic roller lifters (if they look ok) or should new be installed?

I guess i'm looking for any and all tips here

 

[grumpyvette]

ideally you will disassemble and carefully inspect the whole engine simply because theres been a good deal of metallic crap floating around due too the gear wear and most likely other stuff effected by the resulting metallic debris.
now of course you can just slap a new cam and distributor gear into the engine and theres a decent chance you'll get away with that at least for awhile, but since you really don,t know the extent of the damage to other components (if any) the smart routes to pull it down and closely inspect the engines components and flush out the oil passages and replace all the rings and bearings, and any other component found to be damaged.
its always a good idea to call the cam manufacturer and ask what is the correct matching cam gear and distributor gear set,and how its correctly installed.

obviously youll want to verify the correct distributor gear material to use with the cam manufacturer, before using it and providing extra oil flow, to the gears should help reduce wear
http://www.summitracing.com/parts/LUN-89027LUN/

http://garage.grumpysperformance.com/index.php?threads/distributor-gear-wear.1701/#post-5252

 

[stroker87]

what is all the steps in replacing the rings & bearings any machine work needed?

if i was to take a part the engine and every thing looked ok its all supose to got back in the place the part was removed from right?

what about the hyd. rollers, roller rockers how can i tell if they are still usable?

I dont under stand why this happend there is a cam button and it does have an aluminum timming chain cover so I dont think this was cam walk?

 

[grumpyvette]

if its a PRESSED on cam gear on a billet coreits not unknown for the core axis to be non-concentric with the cast gears axis, IE one side of the gear extends out slightly further than the other from the cams center line, even cast cores on occasion get slightly bent or have the cam machined incorrectly.