tightening water pump pulley bolts - how!?!!?!

[vh-holden]

I replaced the water pump on the vs on monday. went to start it today after about a 100km of driving. faced with a massive noise (kinda like the sound the balancer made 3 weeks ago when it let go). turned it off and stare at the engine. notice the water pump pulley isn't actually really attached to the car that well.

one bolt had left the scene completely. one was out the front gate and making a dash for freedom. one had the front door open. the last was staying home to feed the dog.

i got 4 new bolts. now, how do i get them to stay firmly attached to the pulley and pump? the problem is that when you tighten them, the whole pulley turns. any suggestions?

 

[VT-565]

I replaced the water pump on the vs on monday. went to start it today after about a 100km of driving. faced with a massive noise (kinda like the sound the balancer made 3 weeks ago when it let go). turned it off and stare at the engine. notice the water pump pulley isn't actually really attached to the car that well.

one bolt had left the scene completely. one was out the front gate and making a dash for freedom. one had the front door open. the last was staying home to feed the dog.

i got 4 new bolts. now, how do i get them to stay firmly attached to the pulley and pump? the problem is that when you tighten them, the whole pulley turns. any suggestions?

put all the bolts in loosely, hold the pulley with your hand and tighten the bolts gradually. they should only be like 8 or 10mm bolts so they dont have to be tightened excessively. just make sure the pulley is centralised and sitting on the stub in the centre. :thumbsup:

 

[samuels]

I replaced the water pump on the vs on monday. went to start it today after about a 100km of driving. faced with a massive noise (kinda like the sound the balancer made 3 weeks ago when it let go). turned it off and stare at the engine. notice the water pump pulley isn't actually really attached to the car that well.

one bolt had left the scene completely. one was out the front gate and making a dash for freedom. one had the front door open. the last was staying home to feed the dog.

i got 4 new bolts. now, how do i get them to stay firmly attached to the pulley and pump? the problem is that when you tighten them, the whole pulley turns. any suggestions?

disconnect battery,take fuel pump fuse and relay out...put it in gear...tighten bolts,motor shouldn't turn in gear.

 

[VT-565]

disconnect battery,take fuel pump fuse and relay out...put it in gear...tighten bolts,motor shouldn't turn in gear.

if the pulley is loose, you should remove the serpentine belt to do the job. as such would isolate the pump from the crank.

 

[HDT_aero]

just put the belt back on put it in gear and the on top of that hold the pulley with your hand on the belt and tighten them as tight as you can (well maybe not too tight as i managed to snap one overtigtening it lol)

 

[sixshooter]

Use some loctite on the bolt threads

 

[vh-holden]

thread lock for the win (i hope)

 

[theburna]

try a long 10mm spanner, turn em to tight by hand and then hit the end with a hammer going 1,3,2,4
do this again and it should be just fine.
forget loctite if you even want to get em off later alloy to steel is a bad mix

 

[VT-565]

try a long 10mm spanner, turn em to tight by hand and then hit the end with a hammer going 1,3,2,4
do this again and it should be just fine.
forget loctite if you even want to get em off later alloy to steel is a bad mix

for a start, the pump hub is steel too. dont be hitting anything with a hammer, especially that close to your radiator. nice and firm with a ring spanner should be plenty. go the loctite though

 

[sixshooter]

Personally I'd use a socket wrench / torque wrench and tighten like in my crapola picture below...which looks more like a peperoni pizza than pulley... but you'll get the picture..

the bulk of the socket wrench head gives you something to push against... to stop the pulley from moving...it's all about how you use leverage to your advantage.