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 ZR TD problems 
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 Post subject: ZR TD problems
PostPosted: Mon Jul 13, 2015 7:16 pm 
Rovertech Kiloposter


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Well folks bought a wee high miler ZR for work. Problems I have are:
When left sitting it will take an age to start from cold near running down the battery down. Once started once it starts fine again.
Where do i start to look for problems? Heater plugs?
Priming the wee bulb on the fuel line makes no difference either.

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 Post subject: Re: ZR TD problems
PostPosted: Mon Jul 13, 2015 8:31 pm 
RT GOD


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Check fuel pump belt timing if pumping the priming bulb till it goes hard before starting makes no difference.

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 Post subject: Re: ZR TD problems
PostPosted: Mon Jul 13, 2015 9:03 pm 
Rovertech Kiloposter


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E_T_V wrote:
Check fuel pump belt timing if pumping the priming bulb till it goes hard before starting makes no difference.



Sorry for my ignorance but how do I check that lol

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 Post subject: Re: ZR TD problems
PostPosted: Mon Jul 13, 2015 9:38 pm 
RT GOD


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Deckz wrote:
E_T_V wrote:
Check fuel pump belt timing if pumping the priming bulb till it goes hard before starting makes no difference.



Sorry for my ignorance but how do I check that lol


Insert locking pin into flywheel 6.5-6.75mm
Insert locking pin into fuel pump pulley hole (after removing belt cover). If it doesn't go in then the timing isn't right.

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 Post subject: Re: ZR TD problems
PostPosted: Mon Jul 13, 2015 10:19 pm 
Rovertech Kiloposter


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Thanks E T V must get it looked during the week.
I'm more of a petrol man lol

T16 ZR and V6 ZS lol

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 Post subject: Re: ZR TD problems
PostPosted: Mon Jul 13, 2015 10:53 pm 
RT GOD


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Same timing pin for the crank fits the T series too just T is on the front of the bell housing and L series is on the back of the housing. :D

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 Post subject: Re: ZR TD problems
PostPosted: Mon Jul 13, 2015 11:15 pm 
Rovertech Kiloposter


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Hi there my L series sometimes took a while to start I found that charging the battery up gave it that extra kick to bring it to life, try some injector cleaner and a big battery as I'm sure they take some power to wind the machine over.


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 Post subject: Re: ZR TD problems
PostPosted: Tue Jul 14, 2015 10:06 am 
RT GOD


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In summer it should spring into life instantly. If not then the usual fault is the fuel pump timing is wrong (its easy to get wrong and the only symptom is poor cold starting).

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 Post subject: Re: ZR TD problems
PostPosted: Tue Jul 14, 2015 12:38 pm 
Rovertech Kiloposter


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So pulled the cover off the fuel pump belt. Belt is deffo slack so going to lift a new one today.

Is this a diy job to change or should I leave it to the pros?
Any guides?

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 Post subject: Re: ZR TD problems
PostPosted: Tue Jul 14, 2015 1:56 pm 
RT GOD


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Perfectly DIY-able with the following notes

1. You NEED timing pins. Drill bits will also work fine. 6.5 or better 17/64 for the crank (same as T series), and I think it is 9.5mm for the fuel pump. (you may find you need to lock the fuel pump first and then remove the belt and move the crank to fit the crank pin in place if the timing is wrong).
2. You must loosen the cam vernier adjustment pulley (4 off) before tensioning the belt
3. Tension the new belt
4. LAST of all re-tighten the cam vernier adjustment bolts.

Some manuals get this order wrong and then the pump timing will be out. If the pump timing is even half a tooth out then the car will be difficult to start when cold.

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