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What would a full diagnostic cost at the dealer? having the diagnostic unit hooked up to plug wires, and sensors would help you along for sure.

the ac thing is normal. wtf is causing the intermittent plug firing signal? the plugs fire in pairs, so you have 3 wires to check (and ground). how do you check these? a scope would be a fantastic thing right now. crank position sensor on its way out? thats what signals the pcm to...

If you still want to do a cam, you might want to look at a cam from delta cams. I did see a power increase (Its like the 410 cam), but not like JD saw with his 422 cam. With the delta cam (Its very inexpensive at under $100.00, as its a re-grind) you don't need dual springs on your heads...

Bump! Anyone with a 5.0 return fuel system care to comment?

I say cut the temperature sensor wire to the fan, and just wire the fan so its on all the time (Just for a morning) and see if your issue goes away. I can see the resistance (Less resistance, actually) of something else on the same temperature sensor causing issues.

If your going 411, might as well go 422 if the heads are off anyway. I wish I would have done it. The cam profile on the 422 doesn't have any more overlap than the 411, its just more of a square lobe (Thats why you need the dual rate springs). Why comp cams says its no good to use it with an...

I'll see what I can find out. I did reply yesterday that we were hoping to find some higher ratio rockers that would work. Tee rev is a machinist by trade and owns his own machine shop. He has made our ohv's go fast, so I would think he has a pretty good idea what can be done that's reasonable.

tee rev says he even worked half of xmas day, so he hasnt had a chance to do the rocker spacers yet. I also asked about the rockers in the url above, and he says they will not work. He didnt give any more info as to why.

Excellent! As soon as you know something, pls post. I'll order a set also. I'll check on the rocker spacers tonight (I don't have my login info with me).

Im interested in how this pan's out. JD, your motor is pretty free flowing now. If I read this right, you may not get a ton of boost showing and will still get quite a bit more power. Is this correct? Lots of good info coming out of this.

I like the less expensive boost gauge. It's more of a reference thing, and I'll be trying to hide it in a out of the way, factory kind of setup. I like the ash tray moulding idea for this. The ash trays only a change holder anyway. Thanks guys!

Xeek, you would be fine with what you have. I quit this when I couldn't find roller rockers, and emails weren't getting returned. Id love to see if these rockers would work. Any extra flow is good flow. I wonder if they will line up for the push rod, and strike the valve shaft ok without...

none. are you sure its pure water that froze? if its mixed with some coolant or oil, id tbink your ok. its impossible to know for sure though. im sure no one wants to give bad advice on this.

You definitely have an issue on your hands. What are the odds of calling the old owners and asking them to come clean with you on the issues they had, and what was done? It might help point you in the right direction, and save you a few bucks in re-doing what has been tried already. Do you...

Turdle, have you opened one up? I'm wondering if there is electrolytic capacitors in there that might be drying out? Ive heard of this, but never had to live the pain. So, in theory, if the o2 sensor connectors are switched from end to end, the rich condition should follow, or the pcm is...

The problem I have with Amazon, is they rarely ship to me in Canada. I find I do great with rockauto (Compared to Canadian parts prices) as long as I need a bunch of items and have them shipped from the same location.

Nice! Thanks guys!!!! snoranger, I had actually thought of your method, but that meant I would actually have to think about which way the motor cranked, against which way the bolt spins on/off. So, your method works for removal, Correct? Fast Dave, your method works for bolt installation...

Ah, Manuel's getting the bug. I say, do it.

James replied to my email. I missed the wideband 02 sensor/gauges on his site, he pointed me to them. Price actually really good.

****. All this timing cover talk, and now my water pump squeals like a banshee when cold and grinds when warm. Doh! Against my better Judgement, I'm gong to try a reman cardone pump. I want to purchase the tensioner, pulleys, and belt at the same time. This is the only pump that ships from...

Nope, I have been back and fourth with him via email, but haven't asked the direct question on gauges.

You have to admit, the picture is pretty funny, given the lack of info provided. It wasn't meant to offend. Now, its not quite that easy to get more power out of these things. If your looking the computer route, I'd say re-program your computer. Factory targets are pretty conservative, so...

Not wanting to pollute any threads, I thought I'd see if anyone has suggestions for inexpensive Wideband o2 sensors and gauge. Boost kinda falls in to this also. I need a wideband that has analog 0-5v output so it can be wired to an sct device as part of datalogging. I think this one will do...

thanks for the pic gman! Excellent. Nothing like a good laugh.

I'll be interested in how changing the oil pan gasket goes. Keep us updated. I don't think its very easy on 4x4.

did you mean ;both are OHV?: were all confused

I know what you mean JD. It doesn't exactly look easy. I do think if you had the time and the desire, you could get a handle on it. Somehow, I don't think you have the time (At least not to learn all that for one tune). Anyway, I just thought this was extremely relevant to this thread, and...

Do a search on 'mustang sohc'. Here's a thread. Give it a read: http://www.explorerforum.com/forums/showthread.php?t=244859 I can't help but think this would be perfect for you in your situation. I have read other threads of guys that have dropped them in as a replacement with no issues at...

Definately not a tune yourself thing, but it does open you to datalogging, and installing tunes you are given. It would also allow you to make minor adjustments yourself as you learned the whole thing. I saw it as a possible cure to an issue that might come up. looks like a cool product.

EEC 4 and 5. Thats you, isn't it?

I dont think it is. Ill re read it.

I think you can plug the hardware in to your computer under your kick panel, and with the software and a laptop you can do your data logging and tuning. Looks pretty powerful. Might be a steep learning curve though

Ive never heard of anyone having issues with this. Im sure you are going to be ok

I think you can use these to tune your computer. http://www.moates.net/quarterhorse-for-fords-p-199.html software http://www.eecanalyzer.net/product_info/binary_editor.html looks pretty cool

Final update to close this off. Pulled both heads, Took the valves out of the one good head, and the new replacement head. I did a minor port and polish. I left intake ports alone. I took the sharp edges off the valve bowls, polished the exhaust ports, and polished combustion chambers...

Can you find an sohc out of a, say, 2005 mustang? It looks like a ton of guys are doing this. A lower mile, newer motor that has the timing chain upgrades done at the factory. Apparently they can be had pretty inexpensively.

Demystifying? Quite the opposite for me. So, they are saying that the ceramic pads we purchase aftermarket for a premium price are not really ceramic pads, and are actually low quality as far as noise, and wear, and friction? They sure make them sound like crappy pads.

I used ceramic pads with mid grade rotors. Its been about 40,000km, and the front pads and rotors still look new. Braking is strong also. Very odd, actually.

Original fuel pump?

I changed my cam, timing chain, and gears with my 4.0 ohv still in the truck. Snoranger is right, its a pretty simple thing to do. Taking your fan blade, and balancer off will be the hardest part. You will need a strap wrench to hold the motor in place to loosen the balancer bolt. I'd...