Timing belt broke, caused collateral damage

[Green1995SVX]

Originally Posted by kwren

You may blow a head gasket if you run it like that... Chances are that you already have.

Keith

Why would that cause the head gasket to blow? I simply ask because I'm curious.

[SoCal LS-L]

Originally Posted by Green1995SVX

Why would that cause the head gasket to blow? I simply ask because I'm curious.

lol, Keith's head gaskets blow every time he opens his glovebox. He probably just blew them when he dropped the soap in the shower this morning

[Green1995SVX]

Originally Posted by SoCal LS-L

lol, Keith's head gaskets blow every time he opens his glovebox. He probably just blew them when he dropped the soap in the shower this morning

I actually loled! Great post.

[kwren]

Originally Posted by SoCal LS-L

lol, Keith's head gaskets blow every time he opens his glovebox. He probably just blew them when he dropped the soap in the shower this morning

I think it is closing my glove box that does it... I really need to get a stubby Phillips screwdriver and adjust that thing... has to be slammed way too hard.

Keith

Actually, I only had one head gasket blow. The end of my cam shaft was rusted and so was the pin in the pulley. That threw the right side bank out of time and made the engine run badly. I took it to a dealer, and they kept trying different things for 6 weeks and a day.. unable to determine the problem. Finally they ran it so much with that "unknown" condition, that they finally blew the head gasket. Strangely, it was the one on the side with the cam shaft-cam shaft pulley problem.

They tested for the head-gasket problem when they first got it into the dealership, and showed no problem... something about a radiator test... I don't know how that works, but that is what they said. After weeks of messing with it, they finally came up with the 6 week test and found whatever they were looking for in the cooling system.

There you go, smartly paints! YT will tell you that I am Right.

Soooo... that only leaves one option for you... the "W" word

Keith

[yt]

Originally Posted by kwren

I think it is closing my glove box that does it... I really need to get a stubby Phillips screwdriver and adjust that thing... has to be slammed way too hard.

Keith

Actually, I only had one head gasket blow. The end of my cam shaft was rusted and so was the pin in the pulley. That threw the right side bank out of time and made the engine run badly. I took it to a dealer, and they kept trying different things for 6 weeks and a day.. unable to determine the problem. Finally they ran it so much with that "unknown" condition, that they finally blew the head gasket. Strangely, it was the one on the side with the cam shaft-cam shaft pulley problem.

They tested for the head-gasket problem when they first got it into the dealership, and showed no problem... something about a radiator test... I don't know how that works, but that is what they said. After weeks of messing with it, they finally came up with the 6 week test and found whatever they were looking for in the cooling system.

There you go, smartly paints! YT will tell you that I am Right.

Soooo... that only leaves one option for you... the "W" word

Keith

I will?? Because that sounds really wrong. Running a cam out of time will not blow a head gasket. The leaks work from the coolant jacks to the cylinder sealing ring, not the other way around

Tom

[kwren]

Originally Posted by yt

I will?? Because that sounds really wrong. Running a cam out of time will not blow a head gasket. The leaks work from the coolant jacks to the cylinder sealing ring, not the other way around

Tom

Looks like I need a 2nd opinion!

Keith

[kwren]

Back to serious... I wasn't talking about which way the water flows after the head gasket is blown. Not sure but I would venture a guess that the pressure during the compression cycle combined with ignition could exceed the few lbs of pressure in the cooling system.

There are people on this form that know that the camshaft-camshaft pulley condition can cause the head gasket problem. I expect they will show their intelligent heads at any moment!

Keith

(maybe it was the other Tom, or maybe SVX files)

[SoCal LS-L]

Originally Posted by kwren

Looks like I need a 2nd opinion!

Keith

And a new set of head gaskets

[kwren]

I was sure YT would know this

[yt]

I understand but the ignition timing was not effected by the cam, so there is no excessive pressure upon combustion.

My point about the HG failure was that failures occur starting in the coolant jacket and work their way to the compression ring. Not from the compression ring to the coolant jacket

Tom

[svxpert]

<<The end of my cam shaft was rusted and so was the pin in the pulley. That threw the right side bank out of time and made the engine run badly. >>

i can see how the OP would have a problem with his pulley being messed up and not be able to tourque down enough not to move, but if its rusted doesnt that mean it doesnt move out of allignment. i too, am with YT on this, with your engine out of time (tune) you would have risked detonation and possible piston damage i would think before it overheated.

[SoCal LS-L]

Agreed, the dealer told you this because they maybe blew your headgaskets during testing and then blamed your cam problem. Or it was preexisting.

At any rate, I dont think anyone here will attest that slight cam timing problems can blow a head gasket. I think you just got lucky and had both coincidentally. At least we found a relatively common problem with the cams, so diagnosing this will be easier for other members.

[svxfiles]

Originally Posted by svxpert

<<The end of my cam shaft was rusted and so was the pin in the pulley. That threw the right side bank out of time and made the engine run badly. >>

i can see how the OP would have a problem with his pulley being messed up and not be able to tourque down enough not to move, but if its rusted doesnt that mean it doesnt move out of allignment. i too, am with YT on this, with your engine out of time (tune) you would have risked detonation and possible piston damage i would think before it overheated.

When the cams wear out it retards the cam timing.

If the passenger side is retarded it does not affect the ignition timing.

The ignition timing is triggered by the drivers side cam.

One of or 93s, Christine had the first (to my knowledge) recorded worn cam sprocket/cam groove problem and it took forever to locate and repair.

I can not see how a retarded cam timing issue/event would cause a detonation event.

I could be wrong, and if I am please feel free to tell me how or why.

[green_eyed_lady]

Originally Posted by svxfiles

I could be wrong, and if I am please feel free to tell me how or why.

Where do I start?

Oh, you meant about the CAR?!!

[michael]

Not pointing fingers but this is why we should adhere to torque specs when doing t-belts/reseal.