306 Engine

[Oliver]

Not sure if anyone knows this, but I have a single point injection (carberettor) 1.4 306 at present. Is it feasible to swap out that whole engine and dump a 306 1.6 engine in. Only a years different in the age of the engine, so it should be roughly the same size etc.

Also, does anyone know how much a mechanic would roughly charge to do this work and replace a gear box at the same time. How many hours labour roughly?

Thanks

 

[Carl Gibbs]

Not sure if anyone knows this, but I have a single point injection (carberettor) 1.4 306 at present. Is it feasible to swap out that whole engine and dump a 306 1.6 engine in. Only a years different in the age of the engine, so it should be roughly the same size etc.

Also, does anyone know how much a mechanic would roughly charge to do this work and replace a gear box at the same time. How many hours labour roughly?

A bit of a pointless swap if you ask me. I'm not too sure, but the engines may be different in design (1.4 a TU, 1.6 an XU?), so it wouldnt even be a straight swap if that was case. Its doable in a day without problems, but lots of money, i'd take a stab in the dark at £500, for very little gain (a bit more torque and 15 extra horsies).

An easier and cheaper bet would be o source and multipoint injection head, and stick that on (bit extra torque and 25 more horsies). Or just buy a better 306, as i'm pretty sure the 1.4s are basic in all departments.

 

[G.T]

Hi Carl,

A bit of a pointless swap if you ask me. I'm not too sure, but the

engines
I'd have said so if someone ever asked me.

may be different in design (1.4 a TU, 1.6 an XU?), so it wouldnt even be a

They are. TU3M for 1.4i 75HP SPI (Marelli ECU), XU5 (J?) for 1.6, with a Motronic ECU, IIRC. And that's my second point : big wiring loom work - I mean, swap both.

My conclusion is similar to yours : try to find & buy a 1.6 instead. Moreover I tend to think with French laws & rules in mind - I know I shouldn't here.

 

[Oliver]

How can I go about taking the Multipoint Injection bit off an old 306?

Cos i've seen some down a scrap yard...is it a hard job?

Surely if I used a multi injection head, I would need another ECU?

Ollie

 

[Bill (5)]

A bit of a pointless swap if you ask me. I'm not too sure, but the engines may be different in design (1.4 a TU, 1.6 an XU?), so it wouldnt even be a straight swap if that was case. Its doable in a day without problems, but lots of money, i'd take a stab in the dark at £500, for very little gain (a bit more torque and 15 extra horsies).

An easier and cheaper bet would be o source and multipoint injection head, and stick that on (bit extra torque and 25 more horsies). Or just buy a better 306, as i'm pretty sure the 1.4s are basic in all departments.

Then again it might just mean changing the engine mountings.

Bill

 

[SimonDS]

i believe you can have ecu reprogrammed to give 1.6 power at Ecosse

 

[steve (archive)]

the 1.4 and 1.6 engines are completely different, therefore the gearbox will not match up, and even if you find a gearbox to go with it, you will have to replace the driveshafts......... you will need a replacement wiring loom if you are going the multi-point route since there isnt the facility to connect the injectors and air flow meters etc etc...of course this will indeed require a replacement ecu to match... better to leave the vehicle as it is, sell it and buy what you want.........

 

[Carl Gibbs]

How can I go about taking the Multipoint Injection bit off an old 306?

Take off rocker cover, undo headbolts, lift off (well near enough). But you will also need the ECU. Although i think you'll have to nick it off a 106

Cos i've seen some down a scrap yard...is it a hard job?

If you're a novice, then yes!

Surely if I used a multi injection head, I would need another ECU?

Indeed you will, probably the loom too. Not a massively complicated loom (relatively), but takes a bit of time.

Doesnt sound like you'll be doing the job yourself, so it will probably work out very expensive for little gain. Probably easier just buying a 1.6 or above. A TD might even be better for you.

 

[Oliver]

There's a nice Alfa Romeo 3 litre V6 going on ebay for under £300, might just grab that! lol

192Bhp...beats my 75!

Oliver