My Mach 1 is F**ked up!! UPDATED with more Pics

[Wish4svts]

Well here they are Aggie.

[Dan03mach]

4v mod-motor = probably not a great platform to learn about engine assembly

Why not? They are easy to build. My motor was the first motor I've ever built, it didn't even take very long to build it either.

[Dan03mach]

well.. those pieces are for the ladder bars that hold the cam caps together

you cannot find cam caps and just install them, you would have to get them align bored into position. And good luck finding someone willing to sell cam caps...that junks the head they were installed on

I have a set of cam caps and stock cams. My old heads got messed up so I scrapped them but kept the caps and cams. If the OP needs them PM me.

[aggie97]

still not seeing carnage to lock it up... Biggest thing I see is your choice of oil. Pennzoil or Quaker State?

The one piston that has the clean spot on the lip could indicate a rod bearing let loose and was impacting the head....but would not have locked it up. Lots of debris/impacts showing on the top of the pistons but nothing glaring yet. couple ring lands missing but those would have to get lodged somewhere to really shut it down.

Moar pics with actual carnage please!

[Dan03mach]

Motor looks very dirty and oil looks old and worn out. When I pulled my stock motor apart to build a forged shortblock after spraying a 150 shot of n2o for a year, you could see the numbers still stamped on the pistons they were so clean and the cams and heads looked brand new. I changed the oil like ever 2k miles though for Ford Motorcraft 5w20

[KungFuHamster]

OP,

What modifications are done to the car?

[majorownage]

that car has had problems before it seized. Look at the buildup on the piston. Did this thing smoke/burn oil?

[Wish4svts]

still not seeing carnage to lock it up... Biggest thing I see is your choice of oil. Pennzoil or Quaker State?

The one piston that has the clean spot on the lip could indicate a rod bearing let loose and was impacting the head....but would not have locked it up. Lots of debris/impacts showing on the top of the pistons but nothing glaring yet. couple ring lands missing but those would have to get lodged somewhere to really shut it down.

Moar pics with actual carnage please!

LOL! What would you take apart next? Mobil 1 full synthetic running at 3,044 miles.

Motor looks very dirty and oil looks old and worn out. When I pulled my stock motor apart to build a forged shortblock after spraying a 150 shot of n2o for a year, you could see the numbers still stamped on the pistons they were so clean and the cams and heads looked brand new. I changed the oil like ever 2k miles though for Ford Motorcraft 5w20

while i agree, please note that i bought the car with 89,000 miles on it so i can't attest for it before then. I do know its had nitrous ran through it at some point though (not me). I don't know for how long or how big a shot but it still has the fogger nozzle in the intake.

OP,

What modifications are done to the car?

C&L CAI, 4:10s, and supposedly a tune. A bad one it looks like. Steeda shifter and a busted ass zoom clutch.

[majorownage]

and supposedly a tune. A bad one it looks like. Steeda shifter and a busted ass zoom clutch.

a manny tune

[Wish4svts]

that car has had problems before it seized. Look at the buildup on the piston. Did this thing smoke/burn oil?

Didn't smoke at all, burned very little oil, but it did have a problem of fowling out #7 plug which is the piston thats broke. Car had a pretty nice Engine tap that I was told from a couple people that it was the infamous head tick.

[Wish4svts]

I have a set of cam caps and stock cams. My old heads got messed up so I scrapped them but kept the caps and cams. If the OP needs them PM me.

I just might be pming you as soon as I know if my heads are ok.

[majorownage]

man if you had a knock...you might have just spun a rod.

Consider yourself lucky, and don't run PCV with an agressive tune! oil=less octane

[KungFuHamster]

how long have you had this car? did the previous owner spray it?

[Wish4svts]

how long have you had this car? did the previous owner spray it?

Ive had it about a year and a couple months. From 89,000 miles to its current 101,000 (my daily driver). Owner before me only had it a couple months, so im guessing the first owner sprayed it.

[aggie97]

Haven't seen the piston sides or rings yet but the cylinder walls still look great so I don't think it's necessarily the tune causing all the black stuff on the pistons, but something related to PCV or oil passing the rings. Previous owner used shit oil. Not much you can do about that.

Might the car have had long tubes before you got it? That can sometimes generate enough vacuum to cause serious sucking of oil into the intake. The funny thing about synthetic oil is that is doesn't smoke like dino oil when it burns off....well, it does, just not nearly as visible.

My guess is the car was raped on Nitrous for a long time before you got it and the ring lands were damaged back then. Guy probably sold the car after he hurt it and you inherited his abused Mach. Sucks but it happens.

I have also seen some weird shit happen with out of balance clutches, flywheels and balancers....some on MY engine. I actually broke the center out of the steel flywheel on my car and it ended up trashing the balancer and broke the curved chain guides with blown head gaskets and still ran!

Anyway, pull the rod caps, main caps and look at the bearings. I am guessing a spun #7 rod bearing...pretty common, especially if it got hot.

I would buy new 03/04 heads unless they check out OK, turn the crank, get forged rods/pistons and put the car back together and drive it. Least dollars invested unless you can find a used shortblock somewhere. I bought one from Whiteboy once for $600 and put it in a non-running cobra I flipped.

Good luck!