72 510 L16 Rattle coming from front cover area...

[Fuelrags]

Hey Guys, My Buddy's 510 started making a loud scraping noise at Idle from the Timing Cover area,but it's not very consistant with the RPM Band while driving. We did notice that the timing seems to have gone 'off', it's slightly missing and is popping alot out the exhaust on de-acceleration. I say it's the Distributor Shaft and He says it has to be the Oil Pump shaft, What do you guys think???....THX!,Martin

[dat521gatherer]

the oil shaft and the dist shaft are the same shaft. pull the vavle cover off and see if the chain is loose. the chain tensioner may have popped out.

[Fuelrags]

the oil shaft and the dist shaft are the same shaft. pull the vavle cover off and see if the chain is loose. the chain tensioner may have popped out.

 

:eek:If that's the case,how the hell we put it back!:blink:

[dat521gatherer]

you have to take the front timing cover off to get the tensioner back on. do you have a book to tell you how to do this? also when the valve cover is off check to see if the thermostat housing bolt isn't pushing the timming guide into the chain. if the bolt was replaced with a longer bolt it will do that. the hainze video will show you how to do this.

 

link is on this thread. good thread for all to read.

http://forum.ratsun.net/showthread.php?t=2129

[Fuelrags]

you have to take the front timing cover off to get the tensioner back on. do you have a book to tell you how to do this? also when the valve cover is off check to see if the thermostat housing bolt isn't pushing the timming guide into the chain. if the bolt was replaced with a longer bolt it will do that. the hainze video will show you how to do this.

 

link is on this thread. good thread for all to read.

http://forum.ratsun.net/showthread.php?t=2129

 

Thanks Bud, I tried to open that link you sent,but all I got is Porn link stuff...I down loaded and printed some pages off the Factory Service Manual. I hope this is enough info for us to go by...I wonder how this happened anyways????

[datzenmike]

Pull the valve cover off and look down the front of the chain. Look for a loose guide on either side and then look down the passenger side of the chain. If the tensioner is out of place you will see it. It looks like this:

 

http://i138.photobucket.com/albums/q251/datzenmike/motorchaintensioner006Large.jpg[/img]"]

 

Obviously it is compressed together and the spring and oil pressure from behind pushes the 'shoe' on the right, against the chain to remove any slack. You do not want to remove the timing cover and then find out that the problem was easier, like the fuel pump eccentric came loose.

 

BTW, you don't want to drive around with a tensioner 'on the loose' it could drop down and get ground up on the crank sprocket.

[sdsurf]

Thanks Bud, I tried to open that link you sent,but all I got is Porn link stuff...I down loaded and printed some pages off the Factory Service Manual. I hope this is enough info for us to go by...I wonder how this happened anyways????

 

link works for me... The Hainz vid is golden. Watch it, learn it, use it...

[Fuelrags]

Pull the valve cover off and look down the front of the chain. Look for a loose guide on either side and then look down the passenger side of the chain. If the tensioner is out of place you will see it. It looks like this:

 

http://i138.photobucket.com/albums/q251/datzenmike/motorchaintensioner006Large.jpg[/img]"]

 

Obviously it is compressed together and the spring and oil pressure from behind pushes the 'shoe' on the right, against the chain to remove any slack. You do not want to remove the timing cover and then find out that the problem was easier, like the fuel pump eccentric came loose.

 

BTW, you don't want to drive around with a tensioner 'on the loose' it could drop down and get ground up on the crank sprocket.

 

Thank You for your help guys! Martin

[hang_510]

BTW, you don't want to drive around with a tensioner 'on the loose' it could drop down and get ground up on the crank sprocket.

 

wasnt so much of a rattle as a slapping...

 

the tensioner made it down into the pan fine, the spring however came out in 2 different oil changes (pieces on the magnetic plug) and was still obvious once the pan was removed.