Guest V8Z Posted October 3, 2006 Share Posted October 3, 2006 I put a new cam and a set of fastburn heads on my 350, I got it all back together, but it will not idel, it's backfiring through the carb. badly, and can't get the mark on the balancer to read on the scale. If I move the distributor so the mark starts to go in the right direction it dies out no matter how much gas I give it. I think it's maybe one tooth off on timing or can misadjusted valves make a engine do this?? I also had to put a vortec intake and gaskets on to make it fit my fastburn heads and I really don't like how it fits. Thanks Quote Link to comment Share on other sites More sharing options...
Guest V8Z Posted October 3, 2006 Share Posted October 3, 2006 Also, My OEM rockers are rubbing on the valve covers, I only have .469 lift, that not enough for tall valve covers is it? Quote Link to comment Share on other sites More sharing options...
Guest Mike Posted October 3, 2006 Share Posted October 3, 2006 Check your firing order before you do anything else:wink: Quote Link to comment Share on other sites More sharing options...
grumpyvette Posted October 3, 2006 Share Posted October 3, 2006 did you degree in the cam or just match the marks on the gears? the problem sounds like the valves are timed wrong or thier adjusted badly, but it could be the fireing orders wrong , ignitions screwed up,or a vacume leak, youll need to check each potential problem if you want written instructions BTW I have both of these degree wheel, the larger 18" moroso wheel is great with the engine on an engine stand but the smaller size is mandatory IN an ENGINE COMPARTMENT http://www.thedirtforum.com/degree.htm http://www.hotrodder.com/kwkride/degree.html heres just the video if you have the tools already http://www.jegs.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=30669&prmenbr=361 Quote Link to comment Share on other sites More sharing options...
Guest V8Z Posted October 4, 2006 Share Posted October 4, 2006 It was the valves being to tight, I turned them all back one full turn and then adjusted them old school with it running, It really didn't make that big of a mess. Anyone got any ideas why my stock valves covers are barely touching the rockers? Fast burn heads don't take a speical cover do they? If I have to I will clearence them with a grinder. It only needs 1/16" and it will be fine. Quote Link to comment Share on other sites More sharing options...
Guest coppergmc Posted October 4, 2006 Share Posted October 4, 2006 The stock rockers shouldn't be hitting the covers. What kind of covers and rockers exactly are you running? I prefer the word machine instead of grind. Sounds better doesn't it. I had to machine my roller rockers to fit under my aluminum covers. Crap happens sometimes. Quote Link to comment Share on other sites More sharing options...
280zwitha383 Posted October 5, 2006 Share Posted October 5, 2006 It was the valves being to tight, I turned them all back one full turn and then adjusted them old school with it running, It really didn't make that big of a mess. I'm not old school and I have no idea what you mean. Please enlighten me. Quote Link to comment Share on other sites More sharing options...
alexideways Posted October 6, 2006 Share Posted October 6, 2006 He meant adjusting the valves while engine is running. You remove the covers, start the engine and turn the adjusting nuts untill it stops making noise. You better do it with engin hot or you`ll have some suprises when it heats up and the "allready tight" valves start to expand. Quote Link to comment Share on other sites More sharing options...
grumpyvette Posted October 6, 2006 Share Posted October 6, 2006 "I'm not old school and I have no idea what you mean. Please enlighten me." ok how do i adjust them now? http://www.thedirtforum.com/chevyvalves.htm http://www.2quicknovas.com/happyvalves.html http://www.jimcookperformance.com/TechNotes/TN7Valvlash.html http://www.centuryperformance.com/valveadjustment.asp http://www.babcox.com/editorial/us/uhs89720.htm http://www.boostandfuel.com/support/setting_valves.htm http://www.carcraft.com/techarticles/87998/index2.html http://www.angelfire.com/fl4/pontiacdude428/valveadj.html Valve Adjustment: ENGINE OFF! with #1 cylinder Intake Valve at full valve lift .... Adjust #6 Intake Valve with #8 cylinder Intake Valve at full valve lift .... Adjust #5 Intake Valve with #4 cylinder Intake Valve at full valve lift .... Adjust #7 Intake Valve with #3 cylinder Intake Valve at full valve lift .... Adjust #2 Intake Valve with #6 cylinder Intake Valve at full valve lift .... Adjust #1 Intake Valve with #5 cylinder Intake Valve at full valve lift .... Adjust #8 Intake Valve with #7 cylinder Intake Valve at full valve lift .... Adjust #4 Intake Valve with #2 cylinder Intake Valve at full valve lift .... Adjust #3 Intake Valve Exhaust Valve Adjustment: ENGINE OFF! If you have noticed, this is the same procedure as the intake valves listed above, just that you are now adjusting the exhaust valves the same way. with #1 cylinder Exhaust Valve at full valve lift .... Adjust #6 Exhaust Valve with #8 cylinder Exhaust Valve at full valve lift .... Adjust #5 Exhaust Valve with #4 cylinder Exhaust Valve at full valve lift .... Adjust #7 Exhaust Valve with #3 cylinder Exhaust Valve at full valve lift .... Adjust #2 Exhaust Valve with #6 cylinder Exhaust Valve at full valve lift .... Adjust #1 Exhaust Valve with #5 cylinder Exhaust Valve at full valve lift .... Adjust #8 Exhaust Valve with #7 cylinder Exhaust Valve at full valve lift .... Adjust #4 Exhaust Valve with #2 cylinder Exhaust Valve at full valve lift .... Adjust #3 Exhaust Valve or if your really lazy (you can use this method on hydrolic lifters)install the tall cut valve covers and just turn the engine about 20 degrees (start anywhere )and take the slack out of any loose rockers, repeat for 720 degrees,(twice around) then go back and give each rocker nut one turn OUT(LOOSER) and start the engine,(yeah it will be messy and noisy) and then go back and turn each rocker IN (TIGHTER) untill it just quits clicking plus 1/3rd of a turn past that point Quote Link to comment Share on other sites More sharing options...
John Scott Posted October 6, 2006 Share Posted October 6, 2006 A degree'd balancer can really make a simple job of this. Just go in 90 degree increments and follow firing order 18436572. 0,270,180,90 etc, but with hydraulics, best when hot and running. Quote Link to comment Share on other sites More sharing options...
that240guy Posted October 6, 2006 Share Posted October 6, 2006 hydraulic cams are definately not done best when hot and running. All you have to do is soak the hydrualic lifters in oil for an hour or so, install them and then lash them just like grumpy said. If it is still ticking, then you can pull the valve covers and make adjustments. As for the rocker clearance, if you don't want bigger valve covers, look into a thicker gasket or you could double up cork gaskets. I have done it many times doubling up the cork gaskets. They never leak. Quote Link to comment Share on other sites More sharing options...
that240guy Posted October 6, 2006 Share Posted October 6, 2006 and when i say lash the valves, take the play out of the pushrod and then give it another 1/2 turn. Quote Link to comment Share on other sites More sharing options...
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