engine noise?
04-17-2009, 09:11 PM
#11
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I do not think that the valvesprings can make much noise unless they're broken...even then you'd probably never hear it.
More likely is that a rocker or two has been adjusted a little loose and you're hearing the tick of valve lash.
I'd recommend pulling the valve covers and making sure there's no contact with the the rocker arms, and then re-adjust the valves.
Greg
More likely is that a rocker or two has been adjusted a little loose and you're hearing the tick of valve lash.
I'd recommend pulling the valve covers and making sure there's no contact with the the rocker arms, and then re-adjust the valves.
Greg
04-19-2009, 12:18 PM
#12
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well.... it broke. now it has a miss. i can hear puffs of air comming through the intake when i am cranking it. it now makes kind of a hard tick noise that is completely intermittent. it has no relation with the miss or engine speed. im gonna pull the valve covers and take a look. and now that the lifters are pumped up how will i re-adjust the valves?
04-20-2009, 10:06 AM
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I'm trying to go through what i think it could be. everything i put in it was new. and im just not sure what could cause this. the boat was on plane. i was being easy on it. it had a noise and miss then i stopped. i listened to it for a second. it makes a snapping noise completely intermittent and has no relation with engine speed. i think a rocker broke. they were the only things i dont think i bought the best of. they were comp cams aluminum rollers 1.7 ratio. and when i set the engine up the lifteres were new so i set the pushrods to zero lash and then one half turn. so i really dont know what the hell happend. you get small puffs of air through the intake so a valve is open hopefully not enough to kiss a piston. babye it sucked a valve up or one of my new valve springs broke. or a rocker broke and jammed and the valve is open
04-20-2009, 11:37 AM
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I fired off one of my new engines yesterday with the 731 cam and new morel lifters. It look 5 minutes of so for the valve train to quiet, but it is very quiet now.
For your problem I would guess you installed the timing gear wrong on the crank and what you are hearing is the valves tapping on the pistons. If you have a crank gear with multiple keyways it is easy to do. Don't ask how I know this. Did you degree the cam in?
BT
For your problem I would guess you installed the timing gear wrong on the crank and what you are hearing is the valves tapping on the pistons. If you have a crank gear with multiple keyways it is easy to do. Don't ask how I know this. Did you degree the cam in?
BT
04-20-2009, 01:08 PM
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i should have adjusted the valves again after firing it! this sucks. i will let you know what i find. i will most likely get the covers off wednedsay. hopefully the valves have not kissed any pistons.
04-20-2009, 03:00 PM
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teeh teeh Igus you donot know how to adjust valves on a bb GM I sold you thoes GILS because you cryed till Isold you them 'I was just trying to help so doint git pissy ;Iam not rebilding FOUNTIN WITH USED PARTS 
&Iam not begging for parts& help"PS I HAVE LOTS OF USED PARTS>(yes i am a D.ck$$$$ tee tee ) (THATS THE MASTER TECH IN EM )
&Iam not begging for parts& help"PS I HAVE LOTS OF USED PARTS>(yes i am a D.ck$$$$ tee tee ) (THATS THE MASTER TECH IN EM )
04-20-2009, 09:50 PM
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and i adjusted the valves like i was instructed. we are both techs. but i can say i am not a highly experenced modified engine builder. i am glad to share (even my problems) to onyone on this site both to possibly help someone who could possibly get in my position. and to get help. i have always been told "no question is a dumb question and there is always someone who knows more than you" i will let you all know what i find wednesday night. pray for me!
