cam and lifter questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SRVBLUES64 · 06-30-2012, 03:19 PM

Ive been having issues with my enigne not running good almost like someone pulled 4 wires off I cant figure it out I've been through the basic timing and carb tuning So I pulled the engine I know drastic but I had to or I just wanted to look busy. Im not sure if I installed a solid cam or a hyd cam I know I have hdy lifters. Will that make a big difference? should go with buying a cam that I know is a hyd cam? any suggestions

1Bad62Pro/Street · 06-30-2012, 05:05 PM

Camshaft Tips & Definitions
http://67-72chevytrucks.com/vboard/s...d.php?t=347969

Thumpr Cam Dyno (Full Version) - YouTube

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http://www.jegs.com/s/tech-articles/...Specifications
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Rich 5150 69 · 06-30-2012, 10:02 PM

First off did you buy this cam as a kit, cam and lifters, yea pulling the engine was a little extreme, you should have pulled plugs one at a time and look at color first, black being rich, ash white to a hazy silver being way to lean, are they new plug wires, dizzy worn out, is this a new build, was the cam break in done correct, we need a little more info here....

SRVBLUES64 · 07-01-2012, 02:06 PM

older engine, new cam, lifters not a kit, new dizzy, used performer manifold, new oil pump, new gas pump, new wires, water pump new, new headers. new holley 670 avenger, new gas filter, I was having issues with seconadries nor working check vac at 14 not sure what gas is being pump in, new tank, plugs are black, timing chain was set right on. secondaires werenot coming on when then did they bogged down it was idling great even in gear but then one day it just ran bad would barely idle, My father inlaw said it has to be the cam so I went nuts, damn

1Bad62Pro/Street · 07-01-2012, 02:33 PM

How does everything look as far as wear?
http://www.hotrodlane.cc/New%20LS%20...Inspection.htm
Since you have her apart you can go ahead and get a cam and lifter kit if it's in your budget.
Is it small block Chevy?
http://www.jegs.com/c/Cams-Valvetrai...10707/10002/-1
http://www.summitracing.com/search/P...d-Lifter-Kits/
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SRVBLUES64 · 07-01-2012, 07:29 PM

I looked at everything, and there is no wear on the cam or lifters ,

Torqueforce · 07-02-2012, 07:48 PM

I'd recommend doing a compression test if you haven't already. Also what year /type of engine is it?

SRVBLUES64 · 07-02-2012, 08:17 PM

no I did not do a compression test, the block is a 350 year 74/85

MARTYZ · 07-02-2012, 10:18 PM

Just a thought but I have been caught before by simular simptoms, tried carburator, distributor and timing ect., Ended up being a power brake booster gone bad creating a major vacum leak. If you have power brakes check your booster and make sure it holds vacum. May not be your issue, just sounds simular to the one I was into, ran good one day and the next day no good.

06-30-2012, 03:19 PM	#1
SRVBLUES64 Registered User Join Date: Nov 2009 Location: Noblesville, Indiana Posts: 430	cam and lifter questions Ive been having issues with my enigne not running good almost like someone pulled 4 wires off I cant figure it out I've been through the basic timing and carb tuning So I pulled the engine I know drastic but I had to or I just wanted to look busy. Im not sure if I installed a solid cam or a hyd cam I know I have hdy lifters. Will that make a big difference? should go with buying a cam that I know is a hyd cam? any suggestions

06-30-2012, 10:02 PM	#3
Rich 5150 69 Registered User Join Date: Nov 2009 Location: Galt, Calif Posts: 2,437	Re: cam and lifter questions First off did you buy this cam as a kit, cam and lifters, yea pulling the engine was a little extreme, you should have pulled plugs one at a time and look at color first, black being rich, ash white to a hazy silver being way to lean, are they new plug wires, dizzy worn out, is this a new build, was the cam break in done correct, we need a little more info here.... __________________ `64 C10 vortec 350/350/373 posi `69 RS/SS 350/350/308 `37 Ford 406/350/324 traclock `68 Dart 370/904/323 suregrip

07-01-2012, 02:06 PM	#4
SRVBLUES64 Registered User Join Date: Nov 2009 Location: Noblesville, Indiana Posts: 430	Re: cam and lifter questions older engine, new cam, lifters not a kit, new dizzy, used performer manifold, new oil pump, new gas pump, new wires, water pump new, new headers. new holley 670 avenger, new gas filter, I was having issues with seconadries nor working check vac at 14 not sure what gas is being pump in, new tank, plugs are black, timing chain was set right on. secondaires werenot coming on when then did they bogged down it was idling great even in gear but then one day it just ran bad would barely idle, My father inlaw said it has to be the cam so I went nuts, damn

07-01-2012, 02:33 PM	#5
1Bad62Pro/Street "Where were you in '62?" Join Date: Jul 2004 Location: Cleveland County, North Cackalacky Posts: 5,013	Re: cam and lifter questions How does everything look as far as wear? http://www.hotrodlane.cc/New%20LS%20...Inspection.htm Since you have her apart you can go ahead and get a cam and lifter kit if it's in your budget. Is it small block Chevy? http://www.jegs.com/c/Cams-Valvetrai...10707/10002/-1 http://www.summitracing.com/search/P...d-Lifter-Kits/ Posted via Mobile Device __________________ PROJECT: "FULL METAL YELLOW JACKET" 1962 Chevy C-10 Stepside Shortbed Nostalgia Pro/Street Pickup Truck PROJECT: "FULL METAL YELLOW JACKET Build Thread What Are You Workin' On? - 1Bad62ChevyPickup PROJECT: "TYRANNORAMBLER REX" 1969 AMC Rambler American Nostalgia Pro/Street Youtube Channel: Father Son Projects Youtube Channel: 2TIMOTHY2FITHTEEN "North and South Carolina Folks Click Here!" (((( ~ I have Parts For Sale & Miscellaneous Stuff ~ )))) "Well being as there's no other place around the place, I reckon this must be the place, I reckon...Nyuk Nyuk Nyuk" -Curly Howard Ph.D. Last edited by 1Bad62Pro/Street; 07-01-2012 at 02:42 PM.

07-01-2012, 07:29 PM	#6
SRVBLUES64 Registered User Join Date: Nov 2009 Location: Noblesville, Indiana Posts: 430	Re: cam and lifter questions I looked at everything, and there is no wear on the cam or lifters ,

07-02-2012, 07:48 PM	#7
Torqueforce Registered User Join Date: Jun 2012 Location: Austin, Texas Posts: 59	Re: cam and lifter questions I'd recommend doing a compression test if you haven't already. Also what year /type of engine is it?

07-02-2012, 08:17 PM	#8
SRVBLUES64 Registered User Join Date: Nov 2009 Location: Noblesville, Indiana Posts: 430	Re: cam and lifter questions no I did not do a compression test, the block is a 350 year 74/85

07-02-2012, 10:18 PM	#9
MARTYZ Registered User Join Date: Mar 2012 Location: Shallow Lake Ontario,Canada Posts: 201	Re: cam and lifter questions Just a thought but I have been caught before by simular simptoms, tried carburator, distributor and timing ect., Ended up being a power brake booster gone bad creating a major vacum leak. If you have power brakes check your booster and make sure it holds vacum. May not be your issue, just sounds simular to the one I was into, ran good one day and the next day no good.



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