Lancia 16V Turbo - strip down & rebuild

Road-race engines and ancillaries - general discussion
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MattD
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Joined: Sat Oct 29, 2011 3:55 pm
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Lancia 16V Turbo - strip down & rebuild

Post by MattD » Mon Mar 04, 2013 4:20 pm

Hi All

Intending for this thread to follow the strip & rebuild of my Lancia 16V turbo unit, which was fitted in my SSC Stylus kit car.
I had the misfortune (& stupidity) to damage the engine chasing a Golf R32 en-route to work one recent Friday morning.

So I decided to start the strip down of the engine over the weekend to find out what had happened, and it was just as expected really.
My self diagnosis is a follows,

No 4 has suffered a big-end bearing problem. Double thickness of bearing shell has then forced the piston further up the bore, and valve contact has occurred.
The real question for initial discussion please, is the crank salvageable or scrap ?
No4_detail.JPG
Big End No4, first view of cap removed
No4_detail.JPG (96.64 KiB) Viewed 1298 times
No4 Bearing.JPG
Whats left of the shells
No4 Bearing.JPG (131.35 KiB) Viewed 1298 times
Piston_No4.JPG
No 4 Piston
Piston_No4.JPG (136.06 KiB) Viewed 1298 times
No1a.JPG
Journal for No1, which looks OK I think.
No1a.JPG (111.64 KiB) Viewed 1298 times
No4a.JPG
Journal for No4, damaged surface
No4a.JPG (89.35 KiB) Viewed 1298 times
No4c.JPG
Journal for No4, damaged surface
No4c.JPG (117.59 KiB) Viewed 1298 times
Having looked at the rest of the bottom end, it looks like a rebuild was long overdue.
Bore Line.JPG
Bore Line.JPG (98.57 KiB) Viewed 1298 times
General Wear.JPG
General Wear.JPG (89.34 KiB) Viewed 1298 times
I've been lucky enough to obtain a spare engine from a Fiat Coupe for reasonable outlay (16VTs really do go for high money these days), and that is ready to get fitted for my first sprint of the year.
Unless of course, I need the crankshaft for a GCRE engine rebuild, as I think 2013 will see the long overdue move to a proper race engine.

Look forward to your comments.

Matt
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Guy Croft
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Re: Lancia 16V Turbo - strip down & rebuild

Post by Guy Croft » Mon Mar 04, 2013 5:28 pm

= that crank will be scrap


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MattD
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Re: Lancia 16V Turbo - strip down & rebuild

Post by MattD » Mon Mar 04, 2013 8:33 pm

Hello Guy

Thanks for confirming what I suspected. I'd better have a proper look at the valve train also, as there has clearly been contact.
Could you advise best time to telephone you to discuss the next step, or alternatively, I am very likely to be passing nearby in the next few weeks.

If anyone has a good spare late type 2 litre crank they are willing to part with, please let me know.
That would allow me to fit the spare Fiat engine into the car & buy me some time.

Regards

Matt
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