motor hurt in 96 Cobra

[my4stangs]

Well my son run my 96 Cobra out of oil and gaulded up a cam :evil: . So far with a compression test the right bank (pass side) is good. The most compression on the left side was 30 psi. When I got the left valve cover off the intake cam timing chain was broke because the intake cam was seized up in the head. I am in the process of pulling the front cover and checking the cam bores to see if the head will have to be replaced.

[Blackjack]

OH that sucks!!!! Man are you gonna strip the head off? Because most of the 4.6's I've seen break a chain............well the valves unfortunately happen to be pretty darn close to the pistons.

[stumbaugh]

I would bet there is a valve right on top of one of those pistons. I've never seen one that would mess up a cam and not drop a valve.

[Blackjack]

I would bet there is a valve right on top of one of those pistons. I've never seen one that would mess up a cam and not drop a valve.


Bingo

[stumbaugh]

But hopefully it didn't. I bet you were pretty mad at your boy huh

[my4stangs]

yes, i have been pretty upset with my son, but here has been out there helping with the tear down. I might have gotten lucky, I hone the cam journal in the head, emery clothed the cam journal and none of the valves appear to be bent. I'm gonna perform a clylinder leak down test today when I get off work.

[stumbaugh]

If that head ends up turning out fine, then u r extremly lucky

[Blackjack]

Freaking awesome! That would be how you turn a frown upside down! :lol:

[my4stangs]

Well, my luck went south! The intake valves are bent on #7 cylinder. I done a leak down test and air is coming out of #7 intake ports. Time to pull the motor.

[hammerhead2]

Man that sucks.

[Blackjack]

Looks like someone is going to be mowing the crap out of some yards!!!! :lol:

[stumbaugh]

Man that sucks. Might as well add some cams, ported heads and long tubes while it's out!

[my4stangs]

Well it's torn down. Come to find out there was only carbon under #7 intake valves that was causing them to leak. Oh well the engine had 150,000 miles on it. I am not going to go to wild with it. The plan is forged flat tops (10.5:1 compression) port and polish heads, intake and throttle body. I will probably reuse the stock cams. I am shooting for about 350hp nothing to wild, thats what my foxes are for.

[stumbaugh]

I love the 96-98 cobras. It should run pretty good with ported heads and raised compression.

[my4stangs]

I still need to replace the left head from where the cam gaulded and froze up. If anyone has one let me know.

[adam2kgt]

U Pull It in Jacksonville/Cabot has 2 Lincoln Continentals with that motor. They want less than a hundred bucks for each head. I think they are exactly the same. They are asking 275 for the complete engine, but the block is different cause they are front wheel drive.

[my4stangs]

Thanks I'll check in to that.

[my4stangs]

Time for an update. The engine is back together and sitting in the car. I decided to just do a stock rebuild, Keith Craft honed the block and decked the heads (since one head came from a salvage yard). I ported and polished the heads, intake and imrc's. Reground all of the valves and seats (thats a job on 32 valves). This job has taken a little longer than i wanted it to, but everything has been massaged and assembled to my liking. I'll have her runnin this weekend.

[ArkansasMystic]

That's great! I bet it'll feel like a new car with all the extra work you've done.

[Blackjack]

Sweet!!!!!!!!

[hammerhead2]

Awesome congrats on getting it back together.