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Gary
Gary, Australia Car Mechanic
Category: Australia Car
Satisfied Customers: 739
Experience:  Senior Technician
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My daughter's 2005 Astra TS 1.8 litre automatic needs a new

Customer Question

My daughter's 2005 Astra TS 1.8 litre automatic needs a new engine. Can we use the engine from a manual model? The car needs a Z18XE/2H9 engine, I can source a good Z18XE/JL5. Is it possible to use this engine and if so, what needs to be done to make it fit?
Many thanks,
Simon
Submitted: 4 months ago.
Category: Australia Car
Expert:  Gary replied 4 months ago.

Hi Simon,

A Z18XE is identical for manual or auto trans.

Fit your flexplate to the new engine, the rest should reverse of removal.

Use your original computer, not the donor.

Gary

Customer: replied 4 months ago.
Thanks Gary,
I'm not a mechanic, what is the flexplate? The engine I'm looking at is a new/unused Z18XE/JL5. Should I still use the original computer or the one that comes with the new engine? Will a decent mechanic know to do this? I need to find someone to install the new engine, I'm thinking someone who fits reconditioned engines as their primary job. My daughter bought this car a couple of months ago and I think the engine was faulty from the start - ran dry of coolant without any symptoms. She's broke and I'm helping her out but I want to make sure she has a reliable car at the end of the process.
Cheers, Simon
Expert:  Gary replied 4 months ago.

Hi Simon,

The flexplate is the drive plate between the engine and the automatic transmission torque convertor.

A manual transmission has a flywheel for the clutch to bolt up to.

Hence the swapping of the driveplate.

Other than that, straightforward for many mechanics to do.

They should also use your computer, it is bolted to the intake manifold, since there will be no immobilizer security issues, and the new donor engine should fire up normally.

During the swap, some hoses etc should be changed etc as needed, so allow for some extras.

I hope this helps you.

Kind regards

Gary

Expert:  Gary replied 4 months ago.

Hi Simon,

How are you going with your daughters engine swap?

I hope my advice has been of assistance to you.

Kind regards

Gary

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