Timing chain

[pl521sss]

Problem on a friends car

I hear a noise at idle and sounds like a slapping sound.

My guess is the timing chain and it's missing the tensioner.

Right side of the chain is very loose

Can timing chain skip or move to the next toothteeth on the sprocket?

Not able to take out the engine yet to address the problem.

Timing appears to be in the right place last we checked.

Owner needs to drive the car for now but concerned that it will cause bigger problems.

 

Other symptoms now

it dies on normal take off but it's fine when I baby it.

Once it's running and rev it high on any gear, it's fine.

Is this related to timing chain and timing issue if tensioner is missing?

[banzai510(hainz)]

I never seen it skip a tooth even loose.

 

My beater 510 on the org motor the tensioner was out and cocked when i took it apart.195K

[ggzilla]

it dies on normal take off but it's fine when I baby it.

Probably not related to the timing chain. It sound like a carburetor problem.

[imtb]

maybe the chain is stretched and needs the cam gear moved to the next postion.

[banzai510(hainz)]

Timing appears to be in the right place last we checked.

 

 

I know you know how to ck the timming chain to Ck the cam timming.

 

Just dial it up keep chain tight. and put crank to TDC and ck the top sprocket for the V and the notch on the thrustplate/cam tower.

If this is good.

Then look down maybe the tension is way out and just plain worn. Or maybe a bolt cam out of the slack side guide and wiggleing on the bottom.

The Temp housing has a long bolt and pusing the tight side guide causing a rubbing sound.

 

Mechanical fuel pump arm is worn/ loose.

 

 

Not able to take out the engine yet to address the problem.??????????

Do it in the car.!!!!

Lower oil pan abit and break the bolts loose and set motor to TDC then pull everything

Edited April 30, 2009 by banzai510(hainz)

[Bleach]

with two guys working together you can replace that timing set on a Saturday morning before lunch.

 

With Hainz helping you can replace it on a Tuesday during your lunch break at work :D

[pl521sss]

 

Not able to take out the engine yet to address the problem.??????????

Do it in the car.!!!!

Lower oil pan abit and break the bolts loose and set motor to TDC then pull everything

 

 

 

Thought that would be more difficult to do while the engine is in the bay.

Was thinking of just taking it out then check the timing chain and replace the parts as needed.

Well, if you guys think it's easier then will make that approach instead.

 

Made comparison on my spare engine

Removed the tensioner and sure enough, same amount of slack and movement on the right side of the chain.

[banzai510(hainz)]

No its not that much harder.

Just make sure nothing drops in to the oil pan,and not to tear the oil pan gasket removing/installing the front cover . That whyI loosen the 10mm oil pan bolts and pry the front of the pan down.

 

remove the radiator ans everything can be worked from the front.

 

Now thats if you really think its the proplem!!!!!!!!!!!!!

 

hate to find out its just a loose alternator braket or soemthing!!!!!!!!!