leakdown works well for valves as well, you only have to listen where the air
is leaking (air intake or exhaust system) to detect your problem at TDC.
Doesn't tell you what cylinder though.
Now that the plugs are tightened up and I got new wires on it, it seems to be
running like a top.
Thanks for the ideas all!
t
jim beam wrote:
>>> 98 civic, 289000kms, 5spd, non-vtec.
>>>
>[quoted text clipped - 26 lines]
>> There is a known issue with the CR-V for exactly this problem. The CR-V has
>> basically the same engine as the Civic.
>
>crv is b-series - most civics are d-series [apart from the si].
>
>> The CR-V's problem is exhaust valve(s) that have receded into their seats.
>
>more likely the valve itself is getting hot enough to cup around the
>seat - that's fairly common on other cars. valve seats on hondas are
>high quality and in a highly conductive aluminum head - they rarely get
>hot enough to actually recede.
>
>> Check your valve clearances.
>
>indeed.
>
>> If possible, also do a cylinder leakdown test to check for burnt valves.
>
>technically, leakdown is for rings. simple compression is for leaking
>valves. and if they are, got to take the head off to replace.
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