1998 OHV Preventative Maintenance | Page 5 | Ford Explorer Forums - Serious Explorations

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1998 OHV Preventative Maintenance

That's what I was thinking. There's no play on any of the rods, springs, or rockers. No contamination, just a bit dirty. Upper/lower intake gaskets, valve cover gaskets, fix a broken hard line to heater valve, a soft line to the DPFE, thermostat (just because I'm there and its rusty), egr gasket+oring fuel filter, pcv valve, there was oil in places it shouldn't be (MAF housing for instance), and the hose that runs from the oil neck to the intake tube.
 



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Anyone have the correct P/N for the oring on the egr tube where it enters the plenum? Felpro and others show up to 1997, mine is 1998
 






Interesting, everyone shows the O ring for a 97 and a gasket for the 98
 






Interesting, everyone shows the O ring for a 97 and a gasket for the 98

It has a gasket on the bottom, that's easy to find. I've been looking for over an hour for the oring type
 






It has a gasket on the bottom, that's easy to find. I've been looking for over an hour for the oring type that goes into the plenum
It has a gasket on the bottom, that's easy to find. I've been looking for over an hour for the oring type for the plenum.
It has a gasket on the bottom, that's easy to find. I've been looking for over an hour for the oring type for the plenum. I may just get one for a 97.
 






See post #3
 






See post #3

So don't order the pre 98 oring. Still stuck
 






























F77Z-9E469-AD is the EGR tube, looks to be the same on the ohv and sohc. F67Z-9J469-AA is the oem part number for the O ring. wheeler fleet is $1.84 for it
 






Honestly, I don't think there's a difference in the years
I think there is a difference and posted a link to another thread that stated there was a difference. I read a thread where the guy used silicone to get the O ring he used to seal properly. The correct thick green O ring would be what I'd want on my car.
 






I think there is a difference and posted a link to another thread that stated there was a difference. I read a thread where the guy used silicone to get the O ring he used to seal properly. The correct thick green O ring would be what I'd want on my car.
oh ok i thought the sohc and ohv used the same pipe
 












According to Ford parts giant online: F67Z-9J469-AA, which does cross reference with the one that Lee mentioned. The site states that it is compatible with both OHV and SOHC versions.
 












I've had a lot going on that's not explorer related, so it hasn't gotten any attention. I worked on it a little bit today. I've got the lower intake installed, including the fuel rail, injectors got fresh orings, replaced valve covers, and pcv valve (after cleaning everything). I have found several possible sources of vacuum leaks that will still need my attention.

I'm using the "Mahle Original Intake Manifold Gasket MIS19316" from AutoZone ($72), they seem to be more durable than other gaskets I've used on other engines.
 






Is this the correct vacuum diagram for my 98 OHV?
95-99_Ranger_4-0_vacuum_hose_diagram.gif
 



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looks correct
Now sure what they are calling a thermistor? Its just a rubber elbow that attaches to the bottom of the throttle body
 






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