Daf
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 posted on 19/11/11 at 02:25 PM |
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AAAARGH! Zetec flywheels!
So this morning I got everything ready to put the engine in - re organised the garage, picked up the engine crane got everything ready to
go............. but my flywheel doesn't fit!
It's an ST170 engine and the flywheel is supposedly off a silver top 1.6 zetec engine. The bolt holes on the flywheel are however closer
together than those on the end of the crank  .
So I'm back to square one again! Is this flywheel off something else or have I used the wrong info and bought the wrong flywheel?
Any advice that anyone could offer would be great, or indeed if someone has an appropriate flywheel.....!?
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lewis
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| posted on 19/11/11 at 02:39 PM |
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Teach you to suck eggs but the flywheel holes are not semetrical so will only go on in one position.
I am a driving god!..........sort of
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coozer
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| posted on 19/11/11 at 02:39 PM |
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The holes are slightly offset to ensure the timing of the reluctor ring on the back is in the right place. IE, the flywheel only fits in one
position.
Have you tried turning it to get them all lined up?
1972 V8 Jago
1980 Z750
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mrwibble
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| posted on 19/11/11 at 02:39 PM |
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i bought a 1.6 zetec flywheel not long ago, and it doesn't match my 2.0. can only think its a flywheel from the sigma engine. mine has square
trigger wheel cut outs where as the 2.0 had round.
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daviep
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| posted on 19/11/11 at 02:40 PM |
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I know nothing about Zetec's so this might be not be helpful but are the bolt holes all equally spaced, quite common for flywheel bolts to be
oddly spaced so that it will only line up in one position. I think it's to do with the crank sensor reading the flywheel so the crank and
flywheel need to be in the correct alignment.
Might line up if you rotate and try all the combinations of bolt holes.
Davie
“A truly great library contains something in it to offend everyone.”
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mrwibble
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| posted on 19/11/11 at 02:42 PM |
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if its the same as mine, the holes are actually closer together, i.e the diameter of the ring they make is smaller.
this was my 2l
eBay - The UK's Online Marketplace
and the one that doesn't fit.
eBay - The UK's Online Marketplace
I reckon you're on the lookout for a 1.8 zetec these days, reckon the 1.6 flywheels from the escort must be rare.
[Edited on 19/11/11 by mrwibble]
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RichardK
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| posted on 19/11/11 at 03:14 PM |
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May not help but I got a normal 2l jobbie and sent it off to Paul at dunnells who lightened it for me,top job everything lined up perfectly.Did get
his heavy duty clutch and cover for a type 9 though to make life easier.
Cheers
Rich
Gallery updated 11/01/2011
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Daf
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| posted on 19/11/11 at 04:47 PM |
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Yep it's the diameter the holes would make if you drew a line through them all that's smaller not the location of the holes.
It must be off a sigma or something then - the clutch fits perfectly though
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big_wasa
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| posted on 19/11/11 at 05:15 PM |
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As you say it mustbe a zetec s ie the sigma as the 1.6 silvertop fly is the same as the 1.8 on the silver and black top except where fitted to the
mtx75, they had the the 240mm fly' same as the 2.0.
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Rob Allison
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| posted on 21/11/11 at 02:36 AM |
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Zetec S is not a zetec. Just like the ST170 is not a zetec, its a duratec ?? oh hang on isnt the Focus RS mk1 a durtec or was that a zetec.
One of them Ford things. They call it the same or different for each car, nuts aint it.
For the ST170 either the 1.8 Zetec or the 2.0 zetec will go on.
The 1.6 cvh will go on if the bolt holes are drilled out, also the sierra 1.8 cvh one is the same. These dont have the flywheel sensor triggers on
though.
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Daf
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| posted on 21/11/11 at 08:46 AM |
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quote:
Originally posted by Rob Allison
Zetec S is not a zetec. Just like the ST170 is not a zetec, its a duratec ?? oh hang on isnt the Focus RS mk1 a durtec or was that a zetec.
ST170 is a zetec engine but badged up as a duratec - some Ford marketing nonsense!
I've bought a 2.0 zetec flywheel (I hope!) - I got the guy to measure it all up before I bought it and sure enough the diameter the bolts holes
would make is ~5mm larger than the fly I have.
I'll stick some pictures up when it arrives to try and stop other people falling into the same trap!
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Rob Allison
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| posted on 21/11/11 at 02:26 PM |
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Yep i know about the model types, just trying some humor. Ford try hard at confusing stuff.
If you have a 2.0 zetec flywheel coming then it should be the big type with recessed clutch plate. It will be a heavy thing. Got one for mine. Its
possible to have the clutch face side machined flat to fit a pinto or cosworth 4x4 clutch and drilled to suit. A lot of work but does allow for a
stronger clutch to be fitted.
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