1.7 into a 1.4 advice?

B14, B172, B19/200, D16 engine, ignition, cooling, fuel & exhaust system, gearbox, variomatic, final drive... | Tuning: engine swaps, welded diff, clutch upgrades...
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Twitch6284
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1.7 into a 1.4 advice?

Post by Twitch6284 » 09 Feb 2016 03:51 pm

I'm thinking of putting a 1.7 into my 1.4 because its died completely and I have a 1.7 engine available to me.

I have a bellhousing with output shaft, a renix, all the engine mounts and all the hoses for the 1.7 already.

I know that the rads are different, and the front crossmember, and I will obviously need the wiring for the renix..

What else would I need for the conversion please?

also, how would the 1.4 4 speed box hold up to the 1.7? Anything else like that I would need to consider?

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Twitch6284
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Re: 1.7 into a 1.4 advice?

Post by Twitch6284 » 12 Feb 2016 12:53 am

Noone have any input on this subject at all? :(

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SteveP
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Re: 1.7 into a 1.4 advice?

Post by SteveP » 12 Feb 2016 11:25 am

What's actually wrong with your 1.4? I'm not sure I'd bother - it's a fairly small upgrade to a 1.7, but it sounds like you have all you need for the conversion. You'll need the rad and electric cooling fan and crank position sensor (I think your car is early enough to havea points and condenser setup?)
1989 - Volvo 360 GLT
1985 - Volvo 360 GLS
2008 - Volvo S60 SE Lux

Ride_on
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Re: 1.7 into a 1.4 advice?

Post by Ride_on » 12 Feb 2016 09:09 pm

What does 'has died completely' mean? Did it explode?

The 1.4 is more reliable that the 1.7, i would try and fix the 1.4 if atall possible.
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7

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thododd
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Re: 1.7 into a 1.4 advice?

Post by thododd » 12 Feb 2016 09:16 pm

The 1.7 wont destroy the gearbox anymore than the 1.4 will ... it depends more on how you intend to drive it. If you want the tail out everywhere you go youre likely to break something

Fix the 1.4 or go for an F7, it sounds like you have most of the bits youd need

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Twitch6284
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Re: 1.7 into a 1.4 advice?

Post by Twitch6284 » 14 Feb 2016 06:59 pm

The 1.4 in it is literally not worth fixing.. It has problems in pretty much every way it could have problems...
I could buy a decent complete 340 for what it would cost to get all the bits to put it right..

I was thinking the 1.7 because I already have a lot of the parts and my friend said I could have a 1.7 engine mega cheap off him..
So financially it would make sense to go the swap route.

Yeah, I do have the points/condensor setup at the moment.

Thanks for the advice

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SteveP
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Re: 1.7 into a 1.4 advice?

Post by SteveP » 14 Feb 2016 07:48 pm

What is actually wrong with it though? It's a really easy engine to work on so I'd still favour that over a 1.7 swap, unless something bad has happened like a head gasket failure!?
1989 - Volvo 360 GLT
1985 - Volvo 360 GLS
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Twitch6284
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Re: 1.7 into a 1.4 advice?

Post by Twitch6284 » 14 Feb 2016 11:41 pm

Well it runs (idle scrambling wildly) until it builds up any kind of crank pressure, the it loses power, pops and misfires so violently that it blows holes in the backbox, and spits its oil out of all of its seals and dies.. Even comes up out of the 3 bolts that hold the rocker cover on.. Then it wont start again until its fully cooled down. But anything over half throttle is totally useless at all times, and its undriveable. I dont have the time or the cash to diagnose and fix all the problems with it, (I've already spent 100 quid on a carb), and it seems a bit stupid to bother when I can get another engine to drop straight in for 30 quid...

benji1985
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Re: 1.7 into a 1.4 advice?

Post by benji1985 » 16 Feb 2016 11:36 am

I am in plymouth over the weekend, do you want me to pop up and see you. maybe try and get this engine working?

benji1985
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Re: 1.7 into a 1.4 advice?

Post by benji1985 » 22 Feb 2016 04:37 pm

Hello all.
Well today I tried to get this 1.4 engine working.
We reconnected the breather from the cam cover to the carburetor base, there was no restrictor in the new pipe, but least it was connected now.
The engine will fire and run when on full choke however as soon as the choke is pushed off, the engine stalls.
I have check for air leaks but unable to find any, jayk is going to trial a different coil.

When car is about to stall, it is like being flooded then a large bang then stalls.

Any advice please

Ben

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