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Punto (Mk1) 1994 Punto Cabriolet ELX 90

Introduction

This is my recently acquired '94 Cabrio ELX, I bought it very cheap as a project to do up hopefully for the summer.

Initial Thoughts
When I went to look at the car the first time it was obvious its quite tatty. it has dents everywhere, scratches, moss growing in places etc. I took a test drive (fortunately it wasn't raining so put the top down) it is a pleasant drive, rides quite well but my main concentration was on the engine, the 1.6 is not fast... It's not slow either but its very mediocre... Secondly it has VERY short gears which I don't understand since surely the 1.6 would have longer gears than the other models yet it doesn't, in fact all the Cabrio's have shorter gears than their hardtop equivalents, presumably due to the extra weight. At 70mph in 5th the engine is spinning at just over 4000rpm :eek:

Background
The car came with the original manual which I assume is probably a rarity as many of them will have been lost/not passed on between sales. The car includes the original sales receipt from 1994 and some service history for the first 5 years of its life where it only covered about 1500 miles a year which probably meant it was a summer only car. Then there is a 9 year gap between 1999 and 2008 where I have 0 history for the car. From 2008 to 2016 I have MOT's and the odd service receipt, in those years its only averaged about 1000 miles a year too, with it passing every MOT after general serviceable items were replaced such as bulbs, worn brakes/tyres, wiper blades etc.

So here is the car as it stands now after a very quick wash,









A few months later and half a polish

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The car is definitely leaking oil as it had a damp patch underneath it yesterday morning, I was assuming cam cover because that's pretty normal but the top of the block is pretty clean, its down the front side beneath the cylinder head that is caked in oil...
Is it possible that the HG can leak oil to the outside of the block.
I got a friend to stand behind the car just after I started it and I set off hard and he noted there was some blue smoke and you could smell oil... :bang:
 
I had a persistent oil leak on ours. I first replaced the cam cover gasket, which solved the upper leak, but it was still leaking from below. I cleaned the whole engine to find the source and found it was coming from the sump gasket (yes the 1.6 does have a sump gasket), so I replaced that and all is now dry. The old sump gasket was very hard and brittle.
 
i'd say best thing to do is to preoperly clean it up and then have a damn good look about once you start it up, if can't see anything just keep checking every so often until you can see it... afterall, slight smoke on startup could be things other. I would generally think a tiny bit of blue smoke on cold start only would be valve stem seals. But really if it clears straight away and doesn't smoke when warm at all I would not worry at all yet, just something to keep an eye on. I would clean it up, try trace leak, fix that and then keep an eye on the oil level - that will give you a decent indication of how much is getting burnt off, its prob like just a drop on startup and then its ok, which will be fine for a good while.
 
Oil leak not fixed, too wet and cold, can't be bothered I just pour more oil in as required :rolleyes:
Thermostat is still knackered, got sent the wrong part so got a refund but haven't ordered the right one yet, covered half the grille in tape to block off half the radiator, works a treat for now (y)

Have done a little over 200miles this weekend, injector light came on after about 110 :shakehead:, pulled over turned the car off and back on, light went out, hasn't come back on yet...
Roughly calculated my MPG, over the 200miles of motorway driving at 60-75mph I've got roughly 36-37MPG so, a little more than my Dads significantly more powerful BMW :D
 
My Tipo 1.4 (same basic engine) is dripping oil, it seems to fall from the corner of the bellhousing area. I think it's the sump gasket too - the sump was changed about 12 (or more) years ago due to rust, so hopefully a new gasket will cure it although I think there are one or two "hidden" bolts that need a fiddle go remove. Plus the special sealant goo (mentioned in a Panda oil leak thread too.).
 
My Tipo 1.4 (same basic engine) is dripping oil, it seems to fall from the corner of the bellhousing area. I think it's the sump gasket too - the sump was changed about 12 (or more) years ago due to rust, so hopefully a new gasket will cure it although I think there are one or two "hidden" bolts that need a fiddle go remove. Plus the special sealant goo (mentioned in a Panda oil leak thread too.).
Mine often drips down off the corner of the gearbox bellhousing but my sump itself is completely clear of any oil residue whereas the front of the block (and possibly the rear but thats very hard to see) is generally covered in oil, I'm now considering camshaft seal but I'd need to have a proper look and in the cold and rain on the side of the road I don't fancy it, if only I had a garage :eek:
 
My dipstick is feckin' useless, I assume GT's used the same idiotic system where the thing makes two turns before going into the sump, since I have to top my oil up every so often due to the leak I check the dipstick a lot, however every single time I check it (parked in the same place, usually I check in the morning after its sat overnight) it reads differently, sometimes the dipstick appears to be virtually clean and others one side of it is oily and the other side is clear :bang:
Why didn't Fiat just use a straight bit of pipe :mad:

Bought an OBD2 to 3pin adapter since I already had a OBD2 interface lying about that I used with my Renault, safe to say there isn't really any software that knows what my ECU is, woo the Punto 90 almost zero information on it anywhere :cry:
 
can't say I've ever seen a dipstick that is properly straight tbh. are you sure the dipstick is the right one?? getting oil on one side only sounds very odd indeed! kinda almost sounds like its hitting hte bottom of the sump and bending over slightly different everytime or something, can't see how you could take a reading twice and get different each time.
Been a long time since i had the GT but i don't recall ever thinking teh dipstick was anything other than a normal dipstick... :confused:
 
The dipstick does an S bend on its way down, so I assume as the stick is pulled up the pipe the oil is getting smeared along the edges on its way out. Panda had a straight pipe for the dipstick on the 769 anyway, so did my 1.4 GP, thought that was the norm....
 
they usually have a slight bend in them, the 769 defo has a slight s-bend in it too, its quite straight though i will give you that lol, straight enough for the dipstick to be a solid not-flexible rod, most cars have a flexible dipstick and a slightly bendy tube that it goes down..... anyhow thats kinda besides the point really.
For you to pull it out and it be dry on one side it can only really not be in the oil, which in turn can only really mean its either really not got enough oil in it or that the dipstick itself is not long enough... sounds like a weird one that would be explained by it being the wrong one. Not saying it 100% is the wrong one here but thats my first feeling. Got a pic of the dip stick or can you grab one next time you pull it out.
 
Well its been bloody freezing today frost and all so no desire to lift up the bonnet, got some petrol earlier and calculated my around town driving MPG, this is mainly 1-2 mile journeys around town doing anything between 10-35mph with the occasional 7-8 mile A-road journey. 25MPG (y)
 
I got around to cleaning down the engine last week, as you can see it is pretty... uhm... oily.





The leak is bad enough that even after being sat outside in the same place for about 8 hours it had a damp oil patch under it


Just beneath the cam cover gasket it is oil free and completely dry, it starts somewhere beneath that, the entire front of the block is fairly evenly covered in oil though, it then ends up clinging to the sump where it eventually drips off. Since these photos I've cleaned it up with countless cans of brake cleaner (my favourite thing ever) so I'll see what gets dirty first.

I'm wondering if it could be a blocked breather, it goes from the bottom of the block out into a Y piece one of which goes into the intake hose and the second goes into the intake plenum?

See here, the blue goes to intake hose and red skinny one ends up at intake plenum, any idea why it has both since they end up in the same place eventually?


 
Well obviously I'm a bit crazy because I spent Christmas Eve morning out working on the Punto, new spark plugs and leads fitted as its Christmas present :)

I took the complete airbox out, the coil pack and the battery out to get as much room around the engine for some cleaning, I think I may know the culprit of my oil leak at last! It looks to be the oil filter seal :mad: Something extremely simple but I imagine explains why its getting flung around the front of the block but not really anywhere else, I guess I'll get another oil filter, clean up the sealing area when I remove the current one and see what happens :eek:
 
Very odd issue been happening past few weeks, my tach keeps changing its mind, I noticed it first when I was travelling an indicated 70 as usual and yet my tach was only reading 3600rpm whereas usually its almost bang on 4000, from then on I've been watching it, sometimes whilst driving along it'll sit at different RPMs for the same given speed, anywhere from 3600 - 4200rpm at the exact same indicated speed. Then on a journey back from Norwich I actually saw the needle jump between 4000 and 4200, back and fourth for about 2 minutes at the same speed but just the needle physically springing between the different RPM's :confused:
I'd like to point out the engine note doesn't change so the engine isn't magically increasing by 200rpm in the space of half a second.
Then today I was pootling along at 60 which is around 3000rpm, I accelerated up to 70 to overtake a lorry and the gauge shot up to 4600!

Does the mk1 have a separate RPM sender for the tach, I assumed it just came from the same source as the ECU, additionally my EML has been coming on often when I start a journey and get straight onto a motorway, it tends to come on but car runs fine, if I pull over and turn engine off and back on the light will go out and usually stays out for the rest of the journey. It hasn't done it whilst running around town though, not sure if the two are related, any ideas? :confused:
 
Yeah it is a shame, if I'm in the market again one day and I come across a rust free hardtop 1.6 I'd jump on it, I like the way the mk1 drives (even in bendy cabrio form) and I really like the 1.6 8v, great mid-range torque and loves to be revved. Not had anything that loves to rev as much as it did since my old 750 Panda
 
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