trouble

[John Nero]

driving home friday night i heard a pop then the car started running like crap - oil pressure good - car missing real bad - took it to the shop - the hole passneger side head lost compression - maybe cams timing chain - anybody ever had a problem like this - they will dig into it by the end of the week

[RoyLPita]

Hope that you do not have bent valves or holey pistons.

Keep us posted.

[John Nero]

they put a camera down each piston - they look fine - they are dish pistons - not flat - could be some bent valves - we will see when they pull the head

[John Nero]

could be a cam sprocket

[RacerX]

could be a cam sprocket

That's what I'm think for an entire head to lose compression. Almost sounds like the chain may have jumped too. Aftermarket? Stock? Miles?

[John Nero]

That's what I'm think for an entire head to lose compression. Almost sounds like the chain may have jumped too. Aftermarket? Stock? Miles?

stock heads - 65,000

[merc]

I have seen the bolt come out and the chain fall off the top sprocket.

http://www.explorerforum.com/forums/attachment.php?attachmentid=66 431&d=1321188465

[Cobra25]

I'm sure they will find it & fix it. You will be back on the road again soon.

[John Nero]

update - they started pulling the motor apart today - passenger side timing chain broke - still have to get the head off - the motor has 11,000 miles - you no the saying you play you pay

[Zack]

I wish you the best.
I have never seen a timing chain break unless a cam seizes up.

Hopefully it was just bad luck.

[John Nero]

I wish you the best.
I have never seen a timing chain break unless a cam seizes up.

Hopefully it was just bad luck.

cams are free

[merc]

I wish you the best.
I have never seen a timing chain break unless a cam seizes up.

Hopefully it was just bad luck.

You are thinking about a pushrod engine. You have tensioners that could fail and guides that can wear. Its the 4v way of life.

[Zack]

You are thinking about a pushrod engine. You have tensioners that could fail and guides that can wear. Its the 4v way of life.

I have worked on about 6 mod motors with broken timing chains and every single one had a seized camshaft. All marauders.

John, is the timing cover off yet?

[merc]

I have worked on about 6 mod motors with broken timing chains and every single one had a seized camshaft. All marauders.

John, is the timing cover off yet?

That's 5 more than I have. My first Marauder had a chain go south because a lack of oil. Ford replaced the motor. I must have missed something, when did you return to M.M. net?

[John Nero]

I have worked on about 6 mod motors with broken timing chains and every single one had a seized camshaft. All marauders.

John, is the timing cover off yet?
yes timing cover off - the engine builder said this is only the second time he has saw this happen

[jimlam56]

Good luck John, keep us posted.

[John Nero]

the car lives again - good for another 5 years - main passenger timing chain broke and bent all the valves - pick it up tomorrow and do lots of cleaning

[John Nero]

going to put a few miles on her and get the car ready to race and beat the snott out of somone

[Zack]

Id love to know how that happened.

[Blown3.8]

It is definitely weird for a chain to break without a cam locking up or something. I wonder if maybe the tensioner tightened up from wheel spin then grabbing traction.

[John Nero]

It is definitely weird for a chain to break without a cam locking up or something. I wonder if maybe the tensioner tightened up from wheel spin then grabbing traction.

was driving the car down the road when it broke - saw the broken chain - broke in between the links - maybe just a bad chain - same cams back in the car with all new valves - the car was singing today - no ill affects

[Marauderjack]

Id love to know how that happened.

Me too.....at 252K miles I'm "Livin' On Borrowed Time"!!!:eek:

[boatmangc]

Good deal,
I will be at PBIR Friday 2/14