URGENT - Crankshaft pulley bolt

**davedrinks** · 1st March 2014, 13:53

Does anyone know for definite which way the crankshaft pulley bolt undoes - is it normal or reverse thread?

in the middle of doing @Ian-Highlanders car!

edit @caveman_nige any clue?

**davedrinks** · 1st March 2014, 14:04

not to worry, you're all to slow, we worked it out!

**brasch** · 1st March 2014, 17:58

to help others searching for this in the future. which way was it?

**Caveman_nige** · 1st March 2014, 18:01

normal, anti-clocKwise wise (left turn) to undo

**plasma** · 1st March 2014, 18:22

As I told Ian on the phone lol

**Ian-Highlander** · 1st March 2014, 19:56

Problem was it initially felt like it was tightening when rebellion was trying to undo it and I had a vague (and wrong) memory of it being reverse thread, hence the panicky phone call and post on here

Still, all good, it came off in the end with no issues.

**Rebellion** · 1st March 2014, 20:11

For anyone needing this thread in the future, you remove the bolt by turning it.

**ajcollins2** · 13th November 2014, 08:44

Pop the engine in 2nd gear too if the engine starts to turn before you start to wind it out. Lefty loosey

**Murph** · 15th May 2019, 13:21

I know this is an old thread but if you Google "Z19DTH crank bolt" you'll end up here.
I had to change my crankshaft pulley yesterday and both my engine and the donor were left hand thread bolts.
We wrecked the donor engine by snapping the bolt trying to undo it the right handed way.
Take care people!!!!

**LastOne** · 15th May 2019, 19:55

Originally Posted by Murph

I know this is an old thread but if you Google "Z19DTH crank bolt" you'll end up here.
I had to change my crankshaft pulley yesterday and both my engine and the donor were left hand thread bolts.
We wrecked the donor engine by snapping the bolt trying to undo it the right handed way.
Take care people!!!!

You're creating confusion mate. All the posts in this thread apart from yours are referring to the Z20NET engine. I know that because I was there undoing the bolt when Ian H had his lefty-loosey-or-tightey panic attack. Your post on the other hand refers to the Fiat diesel.

So, to clarify: Z20NET, Saab engine, B207L, etc = standard thread for the crankshaft pulley bolt.

The Fiat Z19DTH = who the hell knows what thread they put in the day that engine was manufactured, probably depends on how many cappuccinos the factory operative had that day.