valve lapping
#1
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Join Date: Jan 2005
Location: vancouver, bc, canada
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valve lapping
my carsin the shop theyve got the head pulled and they want to know if i want them to do a valve lapping job for an extra $80 CDN. it involveds using some paste and a suction tool to hold the valve in place while they gently use a rubbing compound on the valve so it ensures a better seal in the combustion chamber
is this worth it??? i dont really wanna pay 80......the car never burned any oil at all...it has 180,000KM though
is this worth it??? i dont really wanna pay 80......the car never burned any oil at all...it has 180,000KM though
#3
Mr. Badwrench
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Re: valve lapping (cdizzle)
if the head is appart, i usually do it. all the lexus engines i have done, 5 of them, 2 got a valve job and the other 3 got lapped. i use valve grinding compound from permatex, and a drill with a tire valve stem in the chuck. it is a judgement call, if it were me i would atleast do that if not a full valve job at that mileage.
#4
Honda-Tech Member
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Re: valve lapping (boostedcivicsir)
actually the purpose in lapping valves is to get a visual referance as to where the valve face is contacting the valve seat not to make a better seal
#5
Honda-Tech Member
Re: valve lapping (nub)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nub »</TD></TR><TR><TD CLASS="quote">actually the purpose in lapping valves is to get a visual referance as to where the valve face is contacting the valve seat not to make a better seal</TD></TR></TABLE>
I vote it makes the valves seal better.
I vote it makes the valves seal better.
#6
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i got it done!! my cars gonnabe back tommorow
i was getting something fairly major done i got my headgasket replaced and the head degreased and resurfaced, they were installing all gaskets from the head up. as well as my timing belt and water pump.
i was getting something fairly major done i got my headgasket replaced and the head degreased and resurfaced, they were installing all gaskets from the head up. as well as my timing belt and water pump.
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