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WTB: Mivec Engine

Posted: Thu May 09, 2013 9:10 pm
by matt_2250
Hi,

Well... my first post here, so, hi all!

The engine in my GPX blew today... and... well... I need another :/

Does anyone have one to sell, or the best way to source one?

Cheers,
Matt

Re: WTB: Mivec Engine

Posted: Thu May 09, 2013 9:13 pm
by Daniel2019
There is one on eBay for $1900, in the Gold Coast.


http://www.ebay.com.au/itm/Mitsubishi-F ... 2a263cf943

Re: WTB: Mivec Engine

Posted: Thu May 09, 2013 9:15 pm
by Taz
1900...lol

Re: WTB: Mivec Engine

Posted: Thu May 09, 2013 9:17 pm
by kiz
Taz wrote:1900...lol
My thoughts exactly :lol:

Re: WTB: Mivec Engine

Posted: Thu May 09, 2013 9:18 pm
by matt_2250
Haha... does seem a bit outrageous.

I found this

http://www.ebay.com.au/itm/Mitsubishi-F ... 53edf0ab46

But... it's for a 1999, and mines a 1995 :/

Re: WTB: Mivec Engine

Posted: Thu May 09, 2013 9:23 pm
by kiz
That's not a mivec engine..

Re: WTB: Mivec Engine

Posted: Thu May 09, 2013 9:24 pm
by Taz
year doesnt matter, but that is a GR (non mivec), and yours is a GPX (mivec)

Re: WTB: Mivec Engine

Posted: Thu May 09, 2013 9:29 pm
by dstocks
There is a whole car for sale in Melbourne for $500. Id snap that up as its cheaper than an engine will cost.

Re: WTB: Mivec Engine

Posted: Thu May 09, 2013 9:36 pm
by dstocks

Re: WTB: Mivec Engine

Posted: Thu May 09, 2013 9:57 pm
by matt_2250
Taz
year doesnt matter, but that is a GR (non mivec), and yours is a GPX (mivec)

kiz
That's not a mivec engine..
Ah! Hrm. Well... I'm not super concerned with keeping it mivec, she rarely even breaks 3000rpm these days.

Could I put that in or would there be ECU issues?

Ah... not that one at Smithfield looks very promising... he reckons it's mechanically OK, so I wonder if makeshit panel beating and some duct tape would get it an hour north.....

Re: WTB: Mivec Engine

Posted: Thu May 09, 2013 10:16 pm
by Daniel2019
You need to change over your ECU and wiring loom to do a non-mivec to mivec conversion so me thinks it's the same the other way around..

i.e. changing your MAP sensor to a MAF sensor. I guess you could modify the wiring but it would be much easier to just change the ECU and loom.

Re: WTB: Mivec Engine

Posted: Thu May 09, 2013 10:33 pm
by matt_2250
You need to change over your ECU and wiring loom to do a non-mivec to mivec conversion so me thinks it's the same the other way around..

i.e. changing your MAP sensor to a MAF sensor. I guess you could modify the wiring but it would be much easier to just change the ECU and loom.
Ah, cheers Daniel2019. Too bad these things don't just come with a USB port and a mobile phone CPU + firmware eh?

Re: WTB: Mivec Engine

Posted: Thu May 09, 2013 10:36 pm
by Daniel2019
matt_2250 wrote:
You need to change over your ECU and wiring loom to do a non-mivec to mivec conversion so me thinks it's the same the other way around..

i.e. changing your MAP sensor to a MAF sensor. I guess you could modify the wiring but it would be much easier to just change the ECU and loom.
Ah, cheers Daniel2019. Too bad these things don't just come with a USB port and a mobile phone CPU + firmware eh?
Oh how I wish.

To be fair though, changing over wiring while the engine is out is pretty easy. The ECU literally is just a few bolts in the passenger side footwell to take out/put in and the hardest part is fitting the looms through the grommet in the firewall while getting the old one out and the new one in.

I'm currently doing a non-mivec to mivec but I wouldnt be going from mivec to non-mivec. Best just to source a mivec engine and be done with it.

Re: WTB: Mivec Engine

Posted: Thu May 09, 2013 10:38 pm
by kiz
Daniel2019 wrote:Best just to source a mivec engine and be done with it.
:thumright:

Re: WTB: Mivec Engine

Posted: Thu May 09, 2013 10:41 pm
by PHIL069
kiz wrote:
Daniel2019 wrote:Best just to source a mivec engine and be done with it.
:thumright:
:thumright: :thumright:

But if it was me I would fix the engine I had so I would have matching numbers still.
You say your engine blew, in what way?

Re: WTB: Mivec Engine

Posted: Thu May 09, 2013 11:16 pm
by silverGPX
How do you know the engine is blown

Re: WTB: Mivec Engine

Posted: Fri May 10, 2013 12:11 am
by matt_2250
Best just to source a mivec engine and be done with it.
This definitely seem to be the case.
How do you know the engine is blown
Well... because my mechanic tells me so lol. I wasn't all that... confident in his diagnosis though to be fair. Partly because they offered to buy it from me as a project car, partly because.. what he said was, all they did was flush the fluids and it was still making a nasty tapping noise.

The tapping noise is constant and matches the RPM (ie, increases with increased revs regardless of speed). He suggested that the (crank shaft?) was slightly out of alignment, possibly due to a bearing or bearings doing something they shouldn't, and because the tolerances are so low, there's metal tapping metal. I'm not much of a mechanic so... it sounded plausible enough to me, which isn't saying much lol.

Re: WTB: Mivec Engine

Posted: Fri May 10, 2013 12:15 am
by Daniel2019
Sounds to me like you just need to adjust your tappets. I wouldn't be going back to that mechanic..

After running an engine for long enough without adjusting them, they get out of measurement and your camshaft lobes don't connect to open up the valve properly and it every so slightly alters the timing of the engine. Just take off your intake manifold and rocker covers and you can adjust them from there.

DIY is here http://ftoaustralia.com/v3/viewtopic.php?f=23&t=7582

If you dont know what you're doing, I'm sure a forum member can help out. Where abouts are you located?

Edit: Either that or you have a big end bearing problem, but I dont know a lot about that. Sounds to me like it's just tappets.

Re: WTB: Mivec Engine

Posted: Fri May 10, 2013 12:23 am
by Astron_Boy
Video the noise.

Consistent rpm tapping with these engines is as Daniel said, tappets.

This isn't an early 4G63 motor.

Re: WTB: Mivec Engine

Posted: Fri May 10, 2013 12:24 am
by PHIL069
Sounds like tappet noise to me.
Vectose, @ Newcastle, just made a tappet adjustment tool maybe he could help you seeming though you are on the Central Coast anyway.
I would have helped you do it but I have just moved from the Coast to SA.


...and yeah your mechanic sounds like a fool.