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Author Topic: my new integrale  (Read 64152 times)
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lancianut666
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Posts: 1284


Slow but rough


« Reply #420 on: 01 October, 2019, 10:41:47 AM »

Nice result...had a similar problem on my Dedra Turbo as the loom from the cps had frayed and would short on the body when you gave it full throttle cutting the engine off as the engine moved on it's mountings as the torque built up.
Clarkey
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Fulvia Coupe S2 Flavia Coupe 1967 1.8 Kugelfischer Prisma 1.6 carb Y10 Fila Y10 Touring Dedra 1.8 Dedra 2.0 Turbo Appia S1
Jaydub
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Posts: 295


« Reply #421 on: 01 October, 2019, 07:13:30 PM »

Brilliant job Kevin, truly a man of many talents!
Jaydub
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1600 HF. S2.
Kevinlincs
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Posts: 931


« Reply #422 on: 01 October, 2019, 10:03:55 PM »

Cheers guys, yes a huge relief to have it running right now, just a shame it's so late in the year!
Interesting that you seemed to have had an identical issue Clarkey, same symptoms too, mine was OK driven gently. Now I don't have to though! Just hope to get a few more days out in it before the road salt goes down..
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Kevinlincs
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Posts: 931


« Reply #423 on: 15 December, 2019, 03:32:48 PM »

Car is now safely tucked away for the winter next to another of my old cars, the Dedra turbo that my friend Jim bought off me probably 10 years ago..


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Kevinlincs
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Posts: 931


« Reply #424 on: 26 February, 2021, 11:03:22 PM »

It's been a while since I posted but like most of us, not much happened last year!
I have been busy restoring a Y10 which I have now finished, and with the prospect of going anywhere much in the Delta not looking likely for a while I decided to attend to a rather annoying issue that the car has had for some time now, pretty much since the rebuild.
An oil leak from the upper reaches of the engine which gave that horrible burning oil smell as it was mainly on the exhaust manifold!

I have been putting it off for some time now, not relishing taking it all apart again. Told myself that I will tackle it next winter.

An unexpected week off meant I could bring it forward in an effort to stop the embarrassing smell and smoke from under the bonnet. A lady actually came up to me at a petrol station last summer, not that she was interested in the car (or me!) but she asked quite innocently "do you know your car is smoking". Yes I said, it's like me, old and leaky.
But embarrassing.

The leak was making the exhaust manifold wet with oil, no wonder it smelled. Didn't seem to be the cambox gasket, or the top cover gasket. Distributor was a bit damp inside but not enough to be the source.
My mind said it could only be the head gasket, isn't it always the worst?

So I set to and took the head off.

Stripped it all down, found an issue or two, wrong cambox base gaskets for one thing. I also changed the oil seal inside the distributor as I'd only done the outer O ring last time.
All pointed to the cambox wrong gasket which had a circular seal where it needed a slot to match the underside of the cambox.

A chance conversation with my friend Chris though alerted me to a phenomenon that I have never heard of, so not that I didn't consider it to be a possible cause it just didn't occur to me to consider it.

I'm sharing this for those who do take their cars apart and miss this vital step, so if you already know then don't condemn me too much!

The exhaust manifold has two studs that go into the head which are not in blind holes, as in they continue into the head internals, or more specifically they end up in the oil gallery exactly where the oil return is...


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Kevinlincs
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Posts: 931


« Reply #425 on: 26 February, 2021, 11:14:21 PM »

Now what happens is that the hot oil can work its way down the threads of the stud and out onto the manifold. I was a little bit sceptical, must be an old wives tale surely but no, Google confirmed its quite common especially it seems on turbocharged cars.
On the Delta of course the manifold studs are angled down at over 45 degrees which aids oil flow.

When I removed the stud a trickle of oil ran out just to confirm things, the stud threads were  wet too so definetly my leak source.... confirmed when I looked closer at the oil staining on the manifold...

On checking with the makers of Loctite threadlock they confirmed that the one I had to hand will do the job so I was able to get them refitted with the Loctite threadlock/sealer. Loctite 243 from memory but I will check that.

So if this prevents one person from overlooking an unknown, to me fault then I can put up with the embarrsement, just I hope to avoid the embarrassing looks at filling stations now! Or once I have reshimmed the valve clearances and put everything back together!


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frankxhv773t
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Posts: 1914



« Reply #426 on: 27 February, 2021, 12:58:06 PM »

It must be good to have that sorted. Having done so much work n the car it must have been mighty frustrating to have an embarrassing oil leak. You should have told the lady in the petrol station that the car was over 18 so it was perfectly legal for it to smoke.
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Kevinlincs
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Posts: 931


« Reply #427 on: 27 February, 2021, 08:32:15 PM »

Yes, very frustrating Frank you're right, and very embarrassing.
Every day is a school day though as they say, never occurred to me to seal the studs.
Car is almost back together now, been re-shimming it today so next Saturday I should be able to start it up, and hope it's no longer an 18+ smoker  Grin
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Mikenoangelo
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Posts: 289


« Reply #428 on: Yesterday at 09:16:11 AM »

You are not alone - my son who owned an Integrale 15 or or years ago had exactly the same problem with the same cause. Must be a design fault. He fixed it the same way. He also had problems with the alloy wheels going pears shaped due to potholes - this we once fixed with the aid of a lead sash weight to beat the rim back into shape.

Mike
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