Crankshaft Pulley Bolt Removal

[Dico]

Toss Pot! ----- (btw, this is in no way refering to Ray or Dave)


........ Alternatively you could do what I did - remove your engine and wedge a screwdriver (with the aid of cable ties) into the teeth of the flywheel, then break the bolt with a 'Breaker bar'. Job done.

Be prepared for more tips from Dico's garage.
I'm on my second glass of wine so things can only get worse

But most of all - Enjoy the satisfaction once you have done it!, no matter how long it takes.

[DeeAitch]

I'm on my 3rd glass and my tool is still for hire

[GeoffSmith]

Crack open another bottle Dave. You know what they're like - all talk and no action.

[DeeAitch]

Crack open another bottle Dave. You know what they're like - all talk and no action.

2nd bottle just gave me an idea

I'll donate my tool to LEC, if Dico agrees to ferry it around the country
Sorry Mr USA but you'll have to wait until Mrs Dico decides she want a holiday over the pond

[Dico]

Tell you what Short Shift Dave, the way Mrs Dico spends my dollars it may be sooner than later that we pay a visit to yankedoodledandyland
5 glasses and counting

[GeoffSmith]

Short Shift Dave

Early finish again today?

[mikeydude]

The way to get it off...is the way the pro's use and it has worked for me everytime with nuts like this in the past.......make a good tool to lock te pulley . get a gas blowtorch stick it on the nut only for 20 secs, stick the socket on as fast as you can and remove the nut....if it don't work the first time, let it cool and then do it again..the knack is to get the nut to heat up quicker than the bolt......it's better with oxyacetylene torches but I find the blowtorches work well. you will still have to use your breaker bar or at least "shock it with a hammer to break the seal. If you don't have an air wrench that is.

I's better if you can get a ring spanner on the nut and heat the nut whilst trying to undo it. but I don't think it's bossible in this case.

Once my dad had to take a nut off a huge textile machine made in the fifties....he use a 3\4 drive socket with a T bar, with one person on one side, one one the other, a gas torch on the nut and lump hammer blow on the socket at the same time.....

Good Luck

[Dico]

All sounds good Mikey, up untill you realise its a bolt and not a nut thats being removed So that method won't work I'm afraid
Good effort though

[mikeydude]

Ah, right, that makes it more difficult, should have opened my eyes a bit! But, the same technique helps but to a lesser degree, the thing to do is keep heating the bolt then cooling by spraying water on it from a hose pipe...My dad says you have to do this 10 or so times and watch for heating any bushes or seals up too much in the process. Then heat\ cool itit and use an impacting and turning force at the same time, i.e as mentioned before...hitting it!!! again being carefull not to damage other things eg, bearings and cast iron metal etc!!!
Hitting the bolt head at right angles to the bolt all the way round whilst heating and cooling it first is a good idea!!!! damaging the head as little as possible.

If the thread is into a different type of metal i.e steel to cast iron etc, then that's even better as they expand at dramaticaly differing rates.

Patience it the virtue here........and as mentioned....make a really good tool to hold it all still

Oh, it sounds daft... but putting some force in the other direction..clockwise... will all help to break the join!

My dad (a mechanical engineer in the textile and motor industry all his life) says he will "Have a go at it" as he put it ...in Dad speak that means he will get it undone as I have never known him not get a bolt undone in my entire life!! but you will have to bring the car to him in manchester...s he is an old bloke now!!- Oh he said that the bolt will be Knackered though in the process!!

[mikeydude]

Nice one John when you going in to production on the bracket

I'll have that socket....bags of life left in it

[mikeydude]

Oh, BTW dad says he has a half inch T bar that has square drive at the end so you can put force on it and put the air gun on it as well, but he says it's 40 years old !!! so he is not sure how it will hold out

[mikeydude]

Dad just looked at the pics and he reckons heating the pulley then cooling it with water whilst trying to turn the bolt will help as well....do it loads of times though ....plus you might needs oxyacetylene to get it hot enough quick enough.

[Oliver]

Got the bolt out with help from Lipscombe Lotus Aylesford. Their main man (Adrian) loosened it an then i drove carefully back home after he had given it a quick tweak back up. They are very helpful.

I have now got it all apart and am commencing reassembly. I realise i`m now off topic a bit as i have got it undone, but here are come pics so far. Oh, the Beck Arnley water pump has a cast, rather than pressed impeller. Presumably this makes no difference ? Oh, by the way, can anyone offer me a definitive (easy) method of determining the correct belt tension ?

Regards

Oliver

[RayD]

Oliver,

I presume you've seen page 16 EC4 in the Mechanical Manual?

Ray

[mikeydude]

Go on then.....I am sure we all want to know...how did he do it?!

[Oliver]

Cheers Ray,

I have the manual, i must be losing the plot.

Cheers

Oliver

[muley]

Oliver,
These photos might help. I replaced my timing belt last weekend.

The main points are:
- Make up a bracket as shown to lock the pulley.
- Undo the lowermost engine mounting bolt (shown in the bracket photo and just visible in one in-situ photo) and then replace it to bolt on the bracket.
- Use two short (about 2cm) M6 bolts (edit to correct to M6 from M5) through the bracket to locate in the holes in the pulley.
- The pulley now is not going anywhere.
- Use as many extension bars as needed (about 15 inches) and an extremely long lever handle.
- Note the use of an axle stand at the fulcrum.
- Lean on the handle very hard (it is normal right-hand thread - ie unscrew anti-clockwise).
- Use only a good quality socket, as my picture shows what happens to a socket which is part of a cheap set which has done me OK for the past 30 years. Halfords Professional is OK.

Good luck,
John

John,

I owe you another pint - I followed your guide to the letter and I got the pulley off this evening!

Thanks

Jim

[John_W]

John,
I owe you another pint - I followed your guide to the letter and I got the pulley off this evening!
Thanks
Jim

I am honoured to have served you well, Obi Wan.
John

PS what do you mean "another pint"? Where's the first one?

[Gordon]

Just for anyone who's interested - this was my 'homebrew' solution to locking the crankshaft pully...

1934621_81449306039_2375216_n.jpg

1934621_81449301039_1658482_n.jpg

Obviously positioned for tightening in the pictures, works equally well for breaking...

Gordon

[Specky]

one word...

ingenuity

TTFN