I checked the oil for signs of coolant and the cooling system for signs of
oil. Both systems appear to not be mixing.
Changed spark plugs and plug wires.
O2 is 114 on the LINK with engine idling. Cruising in 4th gear at 3K RPM
yields normal O2 readings of 78.
The MAP is showing around 55-60 kpa while idling which is much higher than
the usual 29 kpa.
I pulled the new plugs after letting the engine idle for about 5 minutes.
Cylinder 3 plug was wet with oil. The other plugs were black and dry.
Performed a few tests with the engine running;
Pulled each injector plug and these were the results-
Cyl 1 = RPM drops
Cyl 2 = RPM drops
Cyl 3 = RPM drops only a little
Cyl 4 = RPM drops moderately
Next I pulled the Plug wires individually while letting the engine idle-
Cyl 1 = RPM drops
Cyl 2 = RPM drops
Cyl 3 = RPM drops only slightly
Cyl 4 = RPM drops
This is an engine built by The Dealer Alternative about 80K miles ago.
It has an FM3 Turbo Kit.
Please help!
TIA,
Jeff
On Fri, Mar 19, 2010 at 12:04 AM, Eric McCord <atomiccarlton@???>wrote:
> I had a bad head gasket that was pushing coolant overboard by pressurizing
> the cooling system. Headgasket is my vote too....
>
> Eric
>
>
> On Fri, Mar 19, 2010 at 2:31 AM, Bob Bundy <bundybob@???> wrote:
>
>> That would be my vote.
>> The last two cylinders could be just pumping charge between the two.
>>
>>
I checked the oil for signs of coolant and the cooling system for signs of oil. Both systems appear to not be mixing. Changed spark plugs and plug wires. O2 is 114 on the LINK with engine idling. Cruising in 4th gear at 3K RPM yields normal O2 readings of 78.
The MAP is showing around 55-60 kpa while idling which is much higher than the usual 29 kpa. I pulled the new plugs after letting the engine idle for about 5 minutes. Cylinder 3 plug was wet with oil. The other plugs were black and dry.
Performed a few tests with the engine running;Pulled each injector plug and these were the results-Cyl 1 = RPM dropsCyl 2 = RPM dropsCyl 3 = RPM drops only a little
Cyl 4 = RPM drops moderatelyNext I pulled the Plug wires individually while letting the engine idle-Cyl 1 = RPM dropsCyl 2 = RPM dropsCyl 3 = RPM drops only slightly
Cyl 4 = RPM dropsThis is an engine built by The Dealer Alternative about 80K miles ago.It has an FM3 Turbo Kit.Please help!TIA,
Jeff On Fri, Mar 19, 2010 at 12:04 AM, Eric McCord <atomiccarlton@???> wrote:
I had a bad head gasket that was pushing coolant overboard by pressurizing the cooling system. Headgasket is my vote too....
EricOn Fri, Mar 19, 2010 at 2:31 AM, Bob Bundy <bundybob@???> wrote:
That would be my vote.
The last two cylinders could be just pumping charge between the two.
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