Hi everyone, Happy new year. I have started to change the cambelt on my daughters car, but when i tried to undo the crankshaft pulley, it's very tight. The haynes manual shows a pulley with tapped holes in so you can bolt apiece of flat steel on and hold the pulley while you undo the crankshaft bolt. But my one doesn't have any tapped holes only three slots.This makes very difficult to hold.Is it possible to put the car in gear with the brakes on and try to undo the bolt this way without turning the crankshaft. This will also apply when refixing the pulley onto the shaft . I hope the pulley comes off easily because there isn't much room for a puller. Why didn't they just put a keyslot in the crankshaft like the old cars. Thanks in advance sparky 100.
Edited by Pugugly {P} on 07/01/2008 at 19:47
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You're better off trying to hold the flywheel in place. Either remove the starter motor and stick something like a screwdriver in there, or take the flywheel cover off under the engine (if there is one) and hold it that way.
If you do it on the brakes you'll just wind up the drivetrain.
Are there tapped holes in the block behind the slots?
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Hi mfarrow, there are no tapped holes behind the slots, only the plastic cambelt cover. I don;t think a screwdriver in the starter motor hole will hold it, the bolt is very tight. Would using the brakes do any damage. thanks again.Sparky 100.
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Would using the brakes do any damage. thanks again.Sparky 100.
I shouldn't think so but thinking logically I'd be in 5th.
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Sparky, what it the mileage and age of the car? I think I am correct in saying these belts don't need changing for 10 years or 100,000 miles. You might be making hard work of things for nothing and better just leave it as it is for now?
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Hi Kingpin, the car is a 1999 and has done 54000miles. It's used for mainly short journeys and reading on several threads over the last few months, there seems to be different views on mileages and the time factor. So to be on the safe side i thought i would try to change it. Thanks again Sparky.
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I have just tried again to undo the crankshaft pulley bolt but to no avail. I am wondering if i am turning it the right way. I purchased a new bolt with the new belt and it is a normal thread .ie. clockwise to do-up. Is this the correct bolt or have they change it from model to model.Any ideas would be a great help. The haynes manual doesn't tell you what way to turn it.Thanks Sparky 100.
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Sparky
They are very tight, but normal threads. Use a high-power hammer gun, or take it to your local tyre depot and get them to loosen it for you and then nip it up to drive home.
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do not losen the bolt then nip it to drive home as the only thing that keeps the timming correct is the tension of the bolt as you know there is no key (woodruf) to turn the pully, can confirm that 100 k or 10 years are the belt intervals for this vehicle
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On second thoughts sparky; if there's no keyway on yours - driving it home might not be a very good idea.
[Cheers for that snippet TB]
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Just a thought, but doesn't the valve timing stay as it is, until you take off the cambelt.The pulley only drives all the auxillaries. Number 1 cylinder must be at TDC when setting the valve timing and camshaft setting tool in position.Maybe I am wrong, please advise. Thanks again sparky.
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sparky
TB is quite right; on that engine, to be on the safe side, don't undo the bolt until it's all locked up with the setting tools.
Can you hire a small compressor; a big airhose and 650lbf/ft - 1/2"drive hammer gun?
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there is a kit for timming this engine up, there is a bolt that you remove and replace with a pin and the crank rests on this (only to be used to time up ) remove rocker cover and there are slots in the end of the camshafts (flat metal bar locks them in place ) the biggest problem is undoing the crank bolt (as you know) if you use the timming pin and a socket and bar, the pin bends, so really the only way is an air gun, that said the cambelt is not due till 100 k or ten years, so you are a bit early, or erring on the safe side, but for piece of mind and with the degree of difficulty removing the bolt best left to some one who can deal with it (no offence intended)
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Hi guys i'm in deperate need of Help!!! i have a 2001 fiesta zetec s 1.6 and theres a really bad knocking noise coming from the engine, but its coming from the back of the engine block, it wrattles when i put the excellerator down or put the cuth in tho change gear?? ive been to two garages and they said its the cam shaft thats is wrong and that i need a whole engine rebuild or a new engine??
i would be very greatful if some could help me with this Please Rich
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On the subject of undoing the crankshaft end bolt...
Does anyone know if its safe to use the crankshaft locking pin (not the timing pin) to hold the crankshaft for BOTH undoing AND doing up the crankshaft pulley bolt?
Haynes is unclear on the subject and he uses a "Home Made Tool" for the job.
I'd prefer to use the locking pin if possible but I don't want to risk cracking the crank-case or shearing the pin.
Thanks to anyone who knows . And sorry for the duplicate post in the other thread, this thread looks more relevant
PT
PS, on Rhona's problem, if its clutch related then its not going to be a camshaft problem.
You need to figure out exactly which side of the engine its coming from and if its top or bottom.
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sorry guys i am new to this forum and this is probably well outdated..
but... i recently changed a bottom end on this engine and it was a pig.. you can undo the bottom pully without an air gun but it is a 2 man job to be fair.. i had a friend of mine hold a chisel in the fly wheel where the starter moter went and pushed a bar with another extension on that with my feet and it cracked.. the problem is getting that pully up tight enough as it is just held on with pressure no woodruff key.. if you do not get that done up tight enough you will end up with bent valves as the crank will spin and the cams will not.. and i advise investing or hiring the timing pin and bar..
all the best
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Draper Tools supply a special tool for holding the cranshat pulley while undoing the crankshaft bolt. Obtainable from most motor factors. Bought one today £9.64
Tee Dee
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