Engine rattle

[Tog]

I agree and it may just be coincidence and not the cause

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[Logan Savage]

Somethings not adding up . Only a pint low but no oil showing on the dipstick .

 

[Tog]

My bad should be 2 pints put wrong info in the the converter

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[tjkj2002]

My bad should be 2 pints put wrong info in the the converter

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2 pints is 1qt which would put the level at the "add" mark on the dipstick.

 

[Tog]

Looked at the mark on the oil bottle there was about 1 litre maybe a little more which my volume converter app says is about 2.1 pints

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[Logan Savage]

Are you saying that app. 1 quart took it from no oil showing on the dipstick to full ?

 

[teeje]

Timing chain kit guaranteed. Had this problem before i got my new engine. Wretched for 5 seconds. Brought back terrible memories

If its been going away when warm, thats the tensioners getting oil pressure. They're bleeding out when shut down

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[Tog]

Its quiet when cold and rattles when hot. Rattle doesn't go away with the sepentine belt removed

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[teeje]

Its quiet when cold and rattles when hot. Rattle doesn't go away with the sepentine belt removed

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Hm, tensioners are all kattywampus then.

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[Tog]

So it goes when you bring the revs up. Kinda sounds like a tappit rattle or similar https://vimeo.com/181898988

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[Tog]

https://vimeo.com/181899079

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[JeepinJarhead03]

sounds quite similar to other 3.7s when rev'ed that had failed timing chain hydrollic tensioners and the tensioner arms were slapping.. but

they did it both cold and warm

, if it was mine, due to the recent loss of oil and such, id change the oil and disect the oil filter and be looking in the oil for metal particulate , then pull the valve covers , then the timing chain cover etc in that progression until i found what the issue was

 

[Tog]

Thats sort of the plan i was going to follow i may even drop the sump and check all things from the bottom

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[Tog]

How hard is it to get to the timing cover I have never looked at it

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[TwoBobsKJ]

How hard is it to get to the timing cover I have never looked at it

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Remove the water pump then there are 16 bolts around the outside (various lengths though the same bolt size - keep track of where they go.) You'll need to remove the tensioner pulley, power steering pump and a few other goodies but pretty straightforward process.

Hope all goes well for you and it's a simple fix :waytogo:


Bob

 

[Tog]

Cheers twobob so do I

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[teeje]

Remove the water pump then there are 16 bolts around the outside (various lengths though the same bolt size - keep track of where they go.) You'll need to remove the tensioner pulley, power steering pump and a few other goodies but pretty straightforward process.

Hope all goes well for you and it's a simple fix :waytogo:


Bob

Keeping everything in time is the hard part.. if you're going to be in there, replace the guides all tensioners sprockets and chains.

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[Tog]

So I pulled the oil filter and drained the sump no particulates in the filter or the sump oil. Refilled with a thicker oil 15w50 and while the rattle is not gone when hot its not as bad anf the really bad rattle when revved is gone both revving up and when revs die which definitely points to the possible hydraulic tensioners failing. Also picked up a stethoscope while at the parts shop the only place you hear the rattle well is on the sump or i think its the bottom of the timing cover from underneath.

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[teeje]

So I pulled the oil filter and drained the sump no particulates in the filter or the sump oil. Refilled with a thicker oil 15w50 and while the rattle is not gone when hot its not as bad anf the really bad rattle when revved is gone both revving up and when revs die which definitely points to the possible hydraulic tensioners failing. Also picked up a stethoscope while at the parts shop the only place you hear the rattle well is on the sump or i think its the bottom of the timing cover from underneath.

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Its definitely timing component related. Be ready for that.

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[Tog]

Yep going to a mechanic I dont have the time to do it myself and im over spending my spare time under the jeep

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