CAM PROBLEMS
 

I installed a new 3/4 corvette cam in my sons s10 last week and now the back 4 lifters do not work :roll:

do you think i need to change lifters/pushrods/ or rocker arms??? :oops:

really am puzzled by these chevies at times :cry: :cry:


ANY HELP GUYS WOULD BE GREAT :idea:

Any cracks in the lifter bores? Did you use the same lifters or new ones?
If they were new did you bleed the lifters before install?




OK, now everyone can start hammering him with the 3/4 Corvette cam jokes! :lol:

Install the 4th qtr of that cam and you'll be good !

:P :P :P

?
 

3/4 Cam,..................?
Can you Explain that in DETAIL?
I Use to hear that Term Alot Yrs.ago,from Weekend GearHeads that well were CLUELESS?
Later
G :?

Re: ?
 

I used to hear that statement a lot many years ago also, and always wondered 3/4 of what? :? Please exlplain.

Re: ?
 

Sorry to hijack your thread lively.

I did some research a while back and found out where the 3/4 camshaft came from.
Ed Winefield was the maker and actually sold "full race cams" and "three quarter race cams".


According to the recollections of Harvey Crane Jr.,
""Ed told me he first made only two masters, a semi race grind and a full race grind," Crane wrote. "He later made a third master that was more duration and lift than the semi but less than the full. He then used the full race master as an intake and the new master as an exhaust. He called this new reground camshaft a three-quarter race cam. Ed said, 'It was three-quarters of the way to a full race cam.' "

So there really was such thing as a 3/4 race cam.
I would imagine a southerner shortend it to 3/4 cam and confuses the racing word forever! lol


You can google Ed Winfield and find a lot of automotive history about him.

Sorry again Lively.

SBC or BBC
 

It seems like these cam problems are becoming more frequent. Approximately how much running time on the cam ? As long as spring pressure was proper, break in lube used, and you did a visual under the valve covers, You may need to remove the intake and check that the cam lobes did not go flat. I have seen alot of that this year. I have spoken to some motor builders that I trust and they agree it happens ??????????

ok guys --I ALSO NOTICED THE DISTRIBUTOR DOESN'T TURN EITHER :lol:

MAN-- I THINK I HATE CHEVIES NOW FOR SURE :lol:

that dont sound good Lively :shock:

cam
 

Cam may have broken, I would avoid cranking it and take off the intake
Is it a SBC or BBC ?

?
 

Maybe?
Its ONLY 3/4 Connected,....................?

Just Pull a Valve cover and see whats Happening w/the Push-Rods?You will be able to Look from in there to see the Problem?

Later
G 8)

Maybe you put in a 3/4 race cam from a V6 Corvette !

look for the bleed valve....its gotta be there somewhere.

did you check the clearance on the muffler bearing?

Did you install the camshaft :?:

Ha,Ha, LMAO, looks like ole LIVELY, suck'ed all you guys in on this one.
I'll just bet he'e LOTF, LHAO right now.
Of couse the back 4 lifters don't work, or the distributor either, there's no lobe's there or cam gear for that matter.
IMO he gave himself away when he said he put a 3/4 COVETTE cam in his son's car.

GGOD ONE LIVELY

Zip.

I GOTTA CONFESS GUYS---YOU GOT SCAMMED BY THE FORD GUY :lol: :lol: SORRY BUT JUST COULDN'T RESIST IT :twisted: :twisted:

I KNOW YOU GUYS ARE ALL GOOD SPORTS AND GO THRU ALOT ON HERE BUT ALL IN ALL WE GOTTA HAVE A GOOD TIME :lol:


YOUR FREIND IN HOTRODDING ----LIVELY

:? :lol: :shock: :D :? 8) :lol:

cam
 

good one....... you got me !
this cold weather must have got me off my game ?
see ya

3/4 cam
 

Rabbit, I got one hanging on the wall in my store and you saw it.
Guys I see a lot of problems with flat tappet cams today , I have 1.3 rockers and use the extra and still lose cam lobes from 3-4 diff companies and I THINK the problem is lifters , only people use them today are hot rodders and street rodders.
we build some 305 sprint mtrs where we can only use these lifters and it is a mess. Later J.Smith 4621 racing

Re: 3/4 cam
 

x2 Use lower ratio break in rockers, outer springs at first, extra zinc and direct oil lifters.

Re: CAM PROBLEMS
 

Install the rest of the cam and maybe the lifters will work?

Dog gone you lively!!!!!
 

This could have only come from a guy that likes "His distributor in the front"

I am almost 64 and have heard that term my whole life "Here in The South"......... :lol:

Good to see/hear/read you again lively...Now go start some trouble......

3/4 cams in the day were for the round track that there were ran on henz 1/2 mi 3/4 mi 1mi tracks as for the lifters sounds like there collapsd :?