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lets hope thats it!

Yes, this is the beginning of a 2nd gen ohv m90 install. JD has a thread going on his 1st gen install. JDs is far more radical. Thanks Rocket, Ill go to the yard and see what I can find. Sunday is suposed to be a bit warmer. I was just looking at the pics JD posted, and couldnt help but...

No pic Phix? Its all learning for me. I'm always interested in how guys do things.

That looks awesome! Looks like my existong cables will work. What's the cross section measurement on the bolt holes for mounting? I'm not home to measure mine now, but that tb sounds like it will solve my issue, for sure!

The tb holes are made for sohc. I'm hoping the mounting holes allign for the ohv, otherwise Ill try to make an adapter. I want to stick with the tb I have to avoid cable issues for throttle and cruise. It does make sense on the iac that one hole goes before butterfly, and 1 after. I'm sure I...

I understand pure vacuum needs to be before the supercharger. I also understand Boost/vacuum gauge needs to be after the supercharger. I know the iac needs to be before the supercharger, but can I just adapt it to the intake and away I go, with both iac holes going to exactly the same spot...

I started a build thread. It's time.

My question is around what plugs in where (Specifically, the iac). Where? The iac has 2 holes in it. Whats that about? How do I make it work on the new intake? Also, the EGR. Can I just get a second egr tube, and use the side with the two bolt holes to attach to the intake? This is little...

2000 OHV + rpcaster + henson performance = another supercharged 4.0 ohv Explorer I have goodies from James already (New MAF, 36lb injectors, wideband O2 for tuning) Here's what came from Ron (Also a fuel pressure gauge and boost/vacuum gauge)

I'll have to start a build thread right away. My Manifold came from rpcaster, and I have more questions. Im going to have to adapt this to work on my ohv (Just the ports required). I don't see a spot for the iac in the manifold, so I'm going to have to fabricate something. I am impressed...

How are you handling the IAC? I need to spend more time understanding where each hole goes in the intake. The iac has two holes, really close together. I'm confused (again).

Sounds like you have multiple issues. Is this your daily driver? You might want to do a compression test, on the offending cylinders, for sure. You might have blown lower intake gasket. The coolant might be leaking inside the motor, and outside the motor. When you have a look at the spark...

do you know where your coolant is going? This could be another symptom of the big picture.

Wow, old thread.... You have the OHV motor? Im in the process of pulling pieces together to add a M90 to my 2000 Ex with the 4.0 OHV. The vendors I'm using are Ron at bansheesupercharger.com and James at hensonperformance. Ron has supplied the lower mount, and intake routing. James has...

That fans a monster! yup, no cooling issues, that for sure.

Excellent. Thanks. This is great info. Truly, its not that big of a deal to loosen the engine mounts, and lift an inch.

Must have been a backfire. Not sure what to say, I was hoping someone else had an idea what happened. Did you re-install the egr? How did it go after re-install?

That M90 looks pretty massive on top of the block. Wow.

id have to say most, if not all, factory heads crack. get a set of aftermarket heads, and a set of rocker arms and push rods. your cam will be fine, umless your looking for more power (thats how I ended up with my aftermarket cam. Sorry for the bad news.

Look at your heads closely inbetween the intake and exhaust valves. Is there a crack there? It kinda looks like it in the picture(cylinder 5?)

I was just thinking the oil vapor might not be great for the SC.

What are you doing about your PCV valve? I just started thinking the bost might cause an issue. Or, with the check valve on the PCV valve, its not an issue as under boost the valve is just forced closed? Just stick 2 breathers on the valve covers?

I had a guy at a Cylinder head shop tell me that its the ehanol in the gas causing a lot of burnt valves. Ive never heard anyone having this issue with this motor. Im sure some others will post here. Its nice to see that you don't have to go in to the block to fix your issue.

to have 0 compression, it has to be a head (By that I mean, valve stuck open, etc)., or a hole in your piston. Maybe pull the valve cover and see if a valve is stuck down? You pretty much have to take the head off no matter what to fix your issue. Honestly, its a pretty straight forward thing...

Backfire cause the egr blow back? Ive never hear of this. There is no gasket where the egr goes in to the lim, there is a O-ring. We are talking 4.0 OHV motor??

yup, with good reason.

go Evil! Hope you made out ok. im sure you did it. pretty fast pulling apart. No torque wrench needed, just a lot of unbolting.

****. did they have your test pipe to look at?

Ill do a "me 2" on this also. Do a compression check. i had to pull my heads. After they took a trip to the machine shop, they have been fine. No more missfire codes.

if your keeping the truck, and doing a bunch of front end work anyway, id change the joint.

oops.....bad news. look here. http://www.explorerforum.com/forums/showthread.php?t=266568&highlight=Blower+resistor+%2799+Mountaineer

i dont know about the auto either, but my guess is that you have a blower motor resistor pack gone. I have no idea where to find it on your truck though.

So, you were able to do this with the motor in the vehicle on a 4x4 ?

I cant see it being anything you did. It must be a new issue. odd, Im not sure where to even start troubleshooting. I cant see it being fuel pressure, but who knows?

Im not sure just how bad your not wanting to srart condition is, but mine does the same thing. If i start the motor from cold, and kill the ignition in...say...under 30 seconds, then try a restart fairly quickly. I have to crank the starter for a few extra revolutions for it to start. Its...

I dont remove the egr tube anymore. loosening it seems to work for me. I pull the dipstic, and remove the bolt holding the frame of the egr, then loosen the other 2 bolts at the beginning of the tube where the gasket is. This gives the tube more than enough play to pull the upper intake...

Nice when a plan comes together.

Your way ahead of me in your thinking. Excellent.

Nice! Very nice. Are you drilling a hole in your SC mount (And tapping threads) for a temperature sensor to measure the temperature of the post SC air going in to the motor? Thats the only spot I can think it would go.

I have a feeling that making the rear wiper work properly on a different generation isn't going to be straight forward. There might be some more extensive rewiring required. Anyone have a detailed schematic of the 2nd and 3rd gen wiper systems?