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Crank pulley on solid help


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Posting this as we're working. Doing the timing belt and the water pump on a 1987 ex army 110 2.5 n/a. Weird this is there was no crank bolt to hold on the pulley!!

Now we have the puller set on the pulley but it just won't budge. The puller is "just" wide enough to work and granted a bigger set would be ideal.

Any thoughts on what else to do?

DC

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There are so many things to try but most may cause other damage!!!!! I.e the persuader!!! , pry bars being carefull not to damage anything else, big thick cold chisel gently tapping round between the engine and the pulley being carefull not to damage crankshaft, heat being carefull not to warp anything or melt anything including seals, copious amounts of penetrating oil/wd40 in case it's rusted in place.

Is it held by a woodruff key type thing maybe? A bigger puller as you suggested.

Not worked on this particular engine but seems strange not to have a bolt but it is a Land Rover!!!!

These are just a couple of suggestions off the top of my head.

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No signs of welding as we suspected this too. Don't want to try the other persuading methods, over night soak in the WD and try again tomorrow maybe?

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....you are pulling on the centre hub and not the vee belt pulley ? as it is rubber bonded to the hub . The bolt missing is a strange one , have you looked at the end of the crank for evidence of any sort of glue or damage ?

cheers

Steveb

edit , it's probably the case that the bolt came loose and fell out then , really unusual for the pulley to stay on , as you say a good soak and try again , there is no chance of shifting it with levers all that will happen is damage to pulleys/rubber isolator/ timing belt cover

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You could try heating the end of the crank with a plumbers blow torch then rapid cooling with water , but there is a risk to the rubber bond . Sometimes a hefty wack with your biggest hammer to the puller centre bolt ( assuming not an hydraulic puller) when it's as tight as you can get it will break the joint , if the bolt has been missing for sometime there will be rust in the joint .

let us know how it goes

Steveb

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we often used brake fluid as a release liquid, not sure how healthy it is for the seals and rubber etc.... but it seems to have worked.

sometimes also helps giving it a smack in the OPPOSITE direction to that you want to pull it off.....might move a millimetre and then loosen and allow to pull it back and off.

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Back home with cold one in hand and thinking...... If I can get my hands on a heavy duty puller set (large set) it might just be enough, don't know how I can smack it in the opposite direction though?

Is Penol readily available in motor factor stores? I don't think i'll risk the brake fluid as it's very corrosive right?

It's got my puller set on it just now as tight as we dare, it's got a mixture of WD and Acetone and ATF. (Don't ask) so I'm hoping the overnight soak and energy might work.

Thanks guys for the advice so far, greatly appreciated as usual.

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I had this issue a couple of decades ago with the crank-pulley on a Ford Escort RS2000. After pissing-about for a fruitless and sweaty August afternoon with releasing-fluids and pullers and oxy-acetylene I bit the bullet and reached for the angel-grinder.

5 minutes later the old pulley was off. Often it's cheaper to murder old parts for a quick removal and fit new rather than waste hours futilely trying to get stuck bits off in one piece.

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Ok think we're Gona try the heat method, thinking of putting a wet rag round the back of the dumbbell at the shaft to maybe help protect it it a little whilst heat is applied to the Pulley.

Here's a few pics from yesterday......

f480c8d3d729a18d8854c673f044cd6e.jpg

As you can see, the coolant wasn't looking great (if there was any coolant at all !!

3c229f04fe4a30c1c85547740dd56a52.jpg

Here's the culprit...

f8e051fb9aaa55d88dfe520627c16f5b.jpg

The bolt we got from another 2.5 round the back of the shed from a transplant a few years ago on the mates 90. He's got the 200 TDI in it now (lucky sod)

163e05a0ad4e01613ffe3e5115d6be76.jpg

This is the set up as we left it....

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So I'll let you know how it goes today !

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Is Penol readily available in motor factor stores?

Sorry I don't know as I'm still using some I borrowed !!. No use to you now, but seems readily available on line from Chemodex and others.

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The bolts aren't in they're out. Just not shown in the pics.

So, in theory can we use four longer bolts through the vee pulley to the damper on the puller set?? If they're just holding them altogether there wouldn't be much point in using the four holes??

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