could valve float cause loss of boost??
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could valve float cause loss of boost?? question sais it all, i had the the ati kit on the motor with 1.8 rockers , but i never saw anything above 4 psi ( it was the 12 psi kit).
my theory is the rockers were too tight ( too much preload ) and i know that too much preload causes valve float, so do you think i have something going on there or am i just too sleepy???
my theory is the rockers were too tight ( too much preload ) and i know that too much preload causes valve float, so do you think i have something going on there or am i just too sleepy???
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Re: could valve float cause loss of boost?? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 1dirtyZ:
<strong>question sais it all, i had the the ati kit on the motor with 1.8 rockers , but i never saw anything above 4 psi ( it was the 12 psi kit).
my theory is the rockers were too tight ( too much preload ) and i know that too much preload causes valve float, so do you think i have something going on there or am i just too sleepy???</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Too much preload would cause:
Fuel odor from exhaust,
Extremely rough idle,
MIL to go on (to put it mildly)
AND, give little compression.
The best way to check IMO is to do a leak down test. It'll take you twenty minutes, and you'll know EXACTLY what is happening. In extreme cases of overtightened rockers with large cams, bent valves. I won't tell you how I know this one... <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" />
SC
<strong>question sais it all, i had the the ati kit on the motor with 1.8 rockers , but i never saw anything above 4 psi ( it was the 12 psi kit).
my theory is the rockers were too tight ( too much preload ) and i know that too much preload causes valve float, so do you think i have something going on there or am i just too sleepy???</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Too much preload would cause:
Fuel odor from exhaust,
Extremely rough idle,
MIL to go on (to put it mildly)
AND, give little compression.
The best way to check IMO is to do a leak down test. It'll take you twenty minutes, and you'll know EXACTLY what is happening. In extreme cases of overtightened rockers with large cams, bent valves. I won't tell you how I know this one... <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" />
SC
