2000 Mustang GT Have a few ?

[BIT]

I bought my wife a 2000 GT with a hurt motor, for cheap. Factory motor was a Windsor 4.6. I looked around for a replacement but couldnt find one. I ended up finding a Romeo from a 2000 Expedition for cheap and went that route. Other than having a to swap everything over it wasnt that bad and it runs good.

Except I have 2 problems.

Problem 1 has been there since I first cranked the motor. There is a low rpm engine vibration. I noticed I put the balancer from the Windsor motor on the Romeo and I will change that. My question is, is it possible the 01 flywheels are different balanced or did I buy a junk motor?

Problem 2 started after a few miles of test driving. There is a rattle/squeak under the drivers side valve cover. It sounds like a bad rocker arm. If that is it, is possible to change it without pulling the came. Is it possible both problems are related? I hooked the scanner to it and there is no missfires.

If anybody can shed some light on my problems I would be greatfull.

[DON SVO]

Rattle squeak could also be a tensioner.

[Lone Star Performance]

Did you put the flywheel dowels in?

Seriously though, flywheel balance should be the same. Did you happen to run the motor without the driveline attached to see if it runs smoothly on its own?

[BIT]

I didnt run it without driveline hooked up cause I installed it all at one time. I took the belt off to see it was any probs. Problem was still there. Could it be a timing chain tensor?

[DON SVO]

I didnt run it without driveline hooked up cause I installed it all at one time. I took the belt off to see it was any probs. Problem was still there. Could it be a timing chain tensor?

On those motors definitely.

[BIT]

It sounds like its right under the valve cover, but I guess it would if it was the tensensor.

[Lone Star Performance]

Tensioners and guides on the mod 2v are very common issues. I would look at that as a definite possibility.

[DON SVO]

It sounds like its right under the valve cover, but I guess it would if it was the tensensor.

They tick and tap as the guides wear, they then develop slop. granted it's simply thousandths of an inch but enough for the metal chain to oscillate on the gear and move around on the guide. You'll hear it with a screwdriver on the timing cover too more than likely.

[aggie97]

my guess would be that you broke the timing pickup gear when you used the windsor balancer on the romeo motor.... I suggest you pull the front cover and see what you got. Won't know if it's more internal until you do that.

[fastwhite99gt]

I used my Windsor balancer on my Romeo engine when I did my swap. The cranks are what determines which timing reluctor you need. All the flywheels are the same weight, there are only 4 flywheels total. Two different clutch sizes are 2 different mounting bolt patterns for each size. More than likely, gonna be in the timing chains or if its really under the valve cover, check the cam caps and make sure it wasn't oil starved and galled the cams and caps.

[butt86]

I had a 4.6 that sounded like the timing chain was making the noise and ended up being a crank bearing after replacing almost all of the timing components

[BIT]

I will pull it apart tomorrow to check timing components. I pulled the cam caps off and they all looked to have normal wear. Is it possible, installing the wrong balancer caused all of the problems, or am I just wishfull thinking?