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TU3 to TU5 engine swap
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smugpug206

Posted: Thu Jan 12, 2017 1:17 pm

Joined: Jan 12, 2017
Posts: 4
Trade Rating: 0

Hi sorry to all the Pug experts out there...this is a first time post on here. I know there's been loads of queries about engine swaps & upgrades bla bla bla. I do have very one simple question though as from the research I've done on here so far, it's difficult to get a precise answer to this.
Simply, can a 1.4L TU3 engine, which is pretty much at the end of its life with 180K miles & a weeping head gasket, be pulled out of my 2003 206 & replaced with a 1.6L 8 valve TU5 engine?
To keep the cost down I'd probably just swap over & run with the gearbox off the 1.4. Not bothered about the ratios too much as I don't really do motorway driving. I just wanted to be sure I'd have no problems with engine mounts, gearbox, driveshafts & wiring etc. I read somewhere that I might need the ECU for the 1.6? And to avoid the 16V or I'd need to replace the entire loom?
Any input or assistance much appreciated. Thanks lads !!

MrBSI

Posted: Thu Jan 12, 2017 2:33 pm

Joined: Nov 27, 2010
Posts: 11520
Trade Rating: +10
Location: What's it to you? ? ?

The 8 valve TU5 engine isn't very economical on fuel, best bet is throw another TU3 lump in. Helps keep DVLA & insurance company happy.


	Toyota C-HR GR Sport 2.0 Hybrid with JBL & Alcantara packs.

smugpug206

Posted: Thu Jan 12, 2017 2:45 pm

Joined: Jan 12, 2017
Posts: 4
Trade Rating: 0

OK thanks...yeah will probably throw another TU3 in alright as suggested. I was only thinking about a TU5 if going to the bother if an engine change and maybe getting a bit of extra poke into the bargain if there wasn't much in it expense wise. I'm not all that hectic about shoving loads more fuel into it though. My driving is all country lane and I wouldn't exactly be hanging about. The 1.4 is seriously giving me 50mpg+....I've calculated it

Edward

Posted: Thu Jan 12, 2017 3:05 pm

Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage

Is the 8 valve 1.6 from a late mk1 Picasso and different in terms of block and head to a TU3?


	2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible.

smugpug206

Posted: Thu Jan 12, 2017 3:14 pm

Joined: Jan 12, 2017
Posts: 4
Trade Rating: 0

I haven't even gone about sourcing another engine yet. My understanding was that the tu3 and 5 blocks were pretty much the same. It would be taken out of another 206 of around the same year....that's all I can say at this stage. I just wondered was it a straight forward job is all. Based on the feedback re fuel economy, and for the avoidance of drama, I think play it safe with another tu3 is the way to go.

MrBSI

Posted: Thu Jan 12, 2017 5:04 pm

Joined: Nov 27, 2010
Posts: 11520
Trade Rating: +10
Location: What's it to you? ? ?

A 2003 Pug 206 is going to be multiplexed, something to think about if you go ahead with a TU5 transplant.


	Toyota C-HR GR Sport 2.0 Hybrid with JBL & Alcantara packs.

smugpug206

Posted: Thu Jan 12, 2017 7:59 pm

Joined: Jan 12, 2017
Posts: 4
Trade Rating: 0

So the replacement motor needs to be ideally 2001 or later ....if I understand correctly ?

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