markSX

Active Member

• Mar 21, 2015

• #1

Not my car but trying help a friend.

He's just had the cam belt snap, damage is 5 rockers, 2 push rods, shredded belt to down to about 15mm wide and flange disintegrated/missing from crankshaft pulley.

This is the third time the belt has shredded.

The fuel injection pump was changed a few weeks ago but this should not have caused this issue.

I think it may be a distorted timing case but I've not seen it myself.

How would he go about checking the timing case ?

Is there anything else he needs to check ?

 

markSX

Active Member

• Mar 22, 2015

• #2

Any ideas guys.

 

Y

YOREVOL

Active Member

• Mar 22, 2015

• #3

might sound silly but are you using the right kit.
i fitted a late kit to an early engine and left the washer behind the tensioner on. the new tensioner has the washer built in. this meant the tensioner fouled on the timing case cover and destroyed the belt.

 

trax

.

Events Planner

• Mar 22, 2015

• #4

they changed the guide from the idler to the crank on later kits to fix misalignment.

 

Last edited: Mar 22, 2015

markSX

Active Member

• Mar 22, 2015

• #5

The new kit has been used.

I've gone through most of the reasons with him and this is the third time it's happened, which is why we think it maybe the timing case that's out of line.

 

trax

.

Events Planner

• Mar 22, 2015

• #6

markSX said:

The new kit has been used.

I've gone through most of the reasons with him and this is the third time it's happened, which is why we think it maybe the timing case that's out of line.

Click to expand...

just to check, you got a full one with a new crank with a guide? and removed the old idler and swapped with a one without a guide?

 

markSX

Active Member

• Mar 22, 2015

• #7

trax said:

just to check, you got a full one with a new crank with a guide? and removed the old idler and swapped with a one without a guide?

Click to expand...

Yes.

If you read the first post again it states that the "flange disintegrated/missing from crankshaft pulley", we spoke about the possabilities of putting the old style guided tentioner on as well as the new type, but came to the conclution that if this was needed then something else maybe pushing the belt off line, hence asking about the casing.

 

trax

.

Events Planner

• Mar 22, 2015

• #8

markSX said:

Yes.

If you read the first post again it states that the "flange disintegrated/missing from crankshaft pulley", we spoke about the possabilities of putting the old style guided tentioner on as well as the new type, but came to the conclution that if this was needed then something else maybe pushing the belt off line, hence asking about the casing.

Click to expand...

read the first post.. you are :crazy:

not had the issue myself, hopefully more knowledgable will be along

iirc there was also an injection pump bracket that was changed with the full modification kit.

Have you tried placing a straight edge over the pulleys and looking for gaps to see if any are misaligned?

 

trax

.

Events Planner

• Mar 22, 2015

• #9

for a 200, but might give some ideas http://www.landyzone.co.uk/lz/f48/timing-belt-riding-over-shredding-274950-2.html

 

Kwakerman

Well-Known Member

• Mar 22, 2015

• #10

Are you setting the belt tension using a dial torque wrench (11Nm iirc - but check)? Excess belt tension wont help things.

 

B

biolandy

Well-Known Member

• Mar 23, 2015

• #11

Check all pulleys for signs of damage-damaged pulleys knacker belts quickly

 

markSX

Active Member

• Mar 23, 2015

• #12

I'll pass all this info on.
Thanks guy's.