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Timing Belt
#1
Afternoon guys,

Well after my intermediate bearing replacing you guys were so good with helping now I'm asking about a timing belt change on a DW8B WYJ Engine,(2006)

I have a Haynes manual which I have been going though and a few other Youtube videos, as I like to make sure I 100% know what I'm going to have to encounter when I do it.
I've only ever done one Timing Belt before on a Toyota Hilux which is pretty much two …So pretty basic.

Anyway, 

Firstly, according to the Haynes manual, my crack shaft pull under the '1.9 Engines' That the spocket in 'Floating' and that I would need to remove four crackshaft pulley retaining bolts.
A picture of my crankshaft follow is posted below. Just a single bolt?

Next,
Been looking at an Youtube video here: https://www.youtube.com/watch?v=8efU4dzH0NY
Now the Haynes manual mentions about slackening the 3 securing bolts to the Camshaft and Injection pump sprockets for removal and resitting. How important is this? and how should they move once I have locked in the Flywheel, Camshaft and Injection sprocket? surely the locking holes...Lock everything?

Was wondering if an someone could give me a rundown of it here, Cause I feel the Haynes manual is leaving me with more questions than answers.

Thanks

N

https://ibb.co/RyHTzgH
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#2
(15-01-2021, 02:12 PM)ArozNick Wrote:  Now the Haynes manual mentions about slackening the 3 securing bolts to the Camshaft and Injection pump sprockets for removal and resitting. How important is this? and how should they move once I have locked in the Flywheel, Camshaft and Injection sprocket? surely the locking holes...Lock everything?

Crank, cam and injection pump must be at same relative positions after install. miss a tooth and your engine might not start. Crank pulley is the only one that should move after locking. flywheel must be locked.


Might not remember all steps but here's the most critical:
-turn engine until locking holes match. (don't turn it backwards)
-lock cam, injection pump and flywheel.
-remove aux belt pulley from crank
-crank timing pulley should now be loose  (aux belt pulley is pushing it against cone)
-if not figure out how to make it loose.
- remove old belt
-change tensioner. (not mandatory but recommend)
-crank timing pulley has loose play in it. leave all of the play on tensioner side.
-put new belt on
-tighten tensioner. if i remember: correct tension is something like that you should be able to twist belt 90 degrees (by fingers) at longest free space between pulleys.
-tighten aux belt pulley on. i don't remember correct torque or twist degrees for that bolt or nut, but do not use impact wrenches on this.
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#3
I just timed my 1.9 again and regards to the 3 nuts on each pulley loosen them while you tension belt with pins in

Before I tighten up in pump I turn pump hub slightly clockwise while puns are all still in and then tighten up the bolts

This takes any play out which can retard timing

If you just change the belt just using pins and not slackening bolts there is a good chance you will be running retarded

Most garages don’t do this as they think just locking with pins will be sufficient

I have a Citreon technicians manual and that’s what I followed
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#4
Sweet, thanks.

I was going to do in this weekend but it looks like something has come up.
When I get it done I will report back...Smile
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