To cam or not to cam? 4.0 OHV

[Dono]

Thanks for that pearl of wisdom. These sorts of things will probably make the difference between sucess and failure.

Ok, found my cam sensor sync tool on ebay. OTC 6472 Ford Cam Sensor Synch Tool

part number OTC 6742 seems to be the part number to search on.

Im starting to feel stress about this, as in a few weeks there will be a long weekend, and I'll be doing the job then. I can only hope all the parts make it here by then.

Heads are here. I looked at giving them a small port matching by opening up the intakes to match the intake gasket, but it looks like I would end up creating holes in the intake runners as the head bolt holes are very close to the intake runners. Due to lack of experience with this (No experience), I'm not going to do it.

 

[Dono]

ouch.......... $35.00 for cam sensor sync tool
$100.00 for the fan removal tool (2 big ass wrenches). Ford 4.0 specific. Interesting. Napa parts in Canada. I think I'll be taking that back when I'm done.

These odds and ends are adding up.

 

[Dono]

Question on TDC on exhaust stroke.

If I have the timing cover off the front, and line up the timing mark on both gears, am I at TDC on Exhaust?
Using the method on the haynes manual seems pretty difficult for one person, and what do you do if you have the heads off?

 

[matt0248]

Question on TDC on exhaust stroke.

If I have the timing cover off the front, and line up the timing mark on both gears, am I at TDC on Exhaust?
Using the method on the haynes manual seems pretty difficult for one person, and what do you do if you have the heads off?

TDC is on the compression stroke, the timing marks should line up at #1 cylinder at TDC. If the heads are off you can install the two lifters for cyl #1 and watch them while watching the pistion and timing marks. Both lifters should be all the way down indication that the valves would be closed.

 

[Dono]

So does that mean that I can't just line up the two timing marks with the timing chain still on, pull the cam (Not moving the motor), and put a new one in. lining up the timing mark again?

I just want to make sure I don't end up 180 degree's out.

edit....As I digest what you typed, I understand. This is really an easy way to make sure the timings right and one person can do it. Thanks Matt!

 

[jd4242]

I would wait till you inspect your old ones, I bet they're still in good condition.

Also, by no means am I saying Delta Cam's Rockers are baad, I just had a terrible experience with its employees and their oil passages are visibly smaller that Ford's, not that they are notably worse, I don't think anyone has ever put enough miles on a set of Deltas to see where their point of failure is at.

EDIT -- JD4242 may have had one Delta rocker crack and disintegrate on him.. I think. I'll have to ask.

Yes i had one break on me!!wlso the pushrods that come with there rockers will not work with the 410 cam,they need to be atleast.050 longer than stock.

 

[carlover]

How many of you guys that are running the 410 cam are happy with it? just curious is anyone has dyno'd a 4.0 with one to see the increase.

 

[jd4242]

How many of you guys that are running the 410 cam are happy with it? just curious is anyone has dyno'd a 4.0 with one to see the increase.

I ran the 410 and was unhappy with it,switched to the 422.not really worth the time and money to do 410 when the 422 is the same price and puts out way more power.410=about 10% increase,422=about a 20%

 

[Dono]

This is great real world information. Thanks!
Im hoping the delta RV cam kit works fine with the longer push rods that come with the kit. If not, at least push rods are easy to change.

This info also helps set expectations. It sounds like I will really notice no real difference from stock with the delta RV cam. When I'm done, I hope for a smooth running, quiet motor with no leaks. Also, If I can drive nicely, a mileage increase. I'd also hope to feel a better pull in 1000-2500 rpm range. Truely, most of the time, my motor is in this range anyway.

Im a bit stressed about the cam change with the motor in the truck still. We will see how I make out. You guys have been/are a great help, so I think I'm prepaired. Hopefully the cam/rocker/push rod set shows up by next friday.

 

[Dono]

Help!!!!!
Heads are off, rads out.......I forgot to get that crank shaft pully bolt off.
Now, without any engine compression, or the belt on.....I cant get the crankshaft pully bolt off.

Motors in the truck, so there is nothing from the back to hold the motor in place.

I tried a ratchet strap, but I will go pick up a strap wrench and try to hold the pully in place with that. I sure wish there was a pin you could drop in the motor to hold it in place.

Thoughts anyone?

 

[jd4242]

Are you using a air gun? Or you can try the breaker bar and kicking the motor over real quick.also dont forget to repleace that bolt its tty,same as head bolts

 

[Dono]

no air gun. I have been using a 18v impact gun, but there is no room. It wouldnt have the power anyway.

And no, I dont have another bolt. It isn't reverse thread or anything is it?

I'll run and get that ratchet strap wrench. Maybe that will make the difference. I could go get a air gun I suppose. I hate to spend the cash for one bolt though.

 

[jd4242]

Standard.you need a new bolt.that bolt and the head bolts CAN NOT be reused.

 

[Dono]

Ok, I will have time. My cam hasnt shown up yet anyway. I'll report back later on this bolt removal issue.

 

[Dono]

crankshaft pully is out! A larger strap wrench and a breaker bar. Lifes good.

Now, I need to figure out what sized bolts go in to the crankshaft pully to use the puller. The thinks the haynes manual doesnt tell you.

 

[Xeek]

jd, so youre telling him not to reuse the crank bolt, but you were fine with me reusing mine until it got stripped and had to buy a new one anyway.... turd

as far as putting it back on, if it looks like this, and you have that crank pulley:

use the ac compressor bolts to thread on the sides, and use a bolt from the kit to take it off.
disregard the washers in that pic, i was trying to make the kit bolts work. i didnt use washers for the ac bolts

 

[Dono]

Thanks! I came to exactly the same conclusion.
It was tough to see with the motor still in the truck.

Now.......The cam does in fact come out with the motor in the truck. There is a piece of frame that makes it a really tight fit to pull the cam out, but it does come out.

I have some pictures. I'll get elite status to post them.

I have a ton of cleaning to do in preperation for putting back together. The cam was shipped from Delta almost 2 weeks ago. Living in Canada is a ***** with cross border shipping.

Without ther comments in this thread, I'd have never have been able to get this thing apart.

Now....Clean and put back together with new parts.

 

[jd4242]

I said you should be fine but that was before we took it out and put it in 50x!!still crazy i have never see a bolt do that!! What are the spec on this new cam? And what size pushrods did they say to use?

 

[jd4242]

Ps you dont have to be elite to post pics.use photo bucket and paste the pics here

 

[Dono]

I'm going with the delta rv cam and the F-40 package. The rods are slightly longer than stock.

The only reason for the rv cam is winter drivability. I see even with the hot cam with more overlap, mileage can be really good.

I know experiences with delta are mixed. I do hope mine is a good one.

I'll go elete as its its easier. Probably the biggest, on going pain is the air conditioning rad. I have to keep moving it up, and down. At least the hoses are flexible enough.

Sat and drank beer with my wife and friends tonight. I kinda cleaned and worked at stuff till I was to hammered.

More parts to buy. I want to find new exhaust manifold bolts. I'd think an aftermarket shop should have them. Intersting thing.............My exhaust manifold to head gaskets...There were 2 per side. Was someone else in there before me? I pickled up the truck when there were only 35,000 kilometers on it (less than 25,000 miles).

My timing chain kit came with the wrong sproket for the crankshaft. Way to big. Everything else is fine. The risks of ebay. I guess I'll use everything but the wrong sproket.

I have parts in a tub with oven cleaner to clean at the car wash tomorrow. Awesome idea!

Time to get my ass to bed. Stupid alcohol.