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 1955 Traction Avant 11cv 
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Joined: November 11th, 2010, 4:19 pm
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Post Re: 1955 Traction Avant 11cv
Quote:
I have a gap of 0.5mm between the main bearing and the main washer. This is way beyond the 0.1 to 0.15mm that is in the book.


0.5 seems to drop nicely in between 0.1 & 0.15...?

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February 17th, 2015, 12:53 am
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Post Re: 1955 Traction Avant 11cv
I think 0.125 fits better between 0.1 and 0.15...

0.5 is five times greater than 0.1...

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February 17th, 2015, 1:27 am
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Post Re: 1955 Traction Avant 11cv
Doh! Engage brain... :oops: I always find numbers confusing - specially when the use letters for them?!

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February 17th, 2015, 1:35 am
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Post Re: 1955 Traction Avant 11cv
Yeah me too, I had to read what you'd written several times to make sure my correction was correct and it wasn't me who was wrong.

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February 17th, 2015, 1:36 am
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Location: Luscan, Pyrenees, FRANCE
Post Re: 1955 Traction Avant 11cv
And there is me thinking I had solutions to my problem, but it was just a load of dyslexic mathematicians. :lol: :lol:

While I was waiting I installed the front seats, the glove box and ash tray. So the interior is near enough done except for the door cards, which I am waiting for the sticky back vinyl for.

So onto the engine. I did have a little too much play on the crankshaft and probably still have but I removed the shims and once tightened to the correct torque the gap was just about there although I have been told the tolerance for an 11D is even tighter - I will keep this in mind for when I pull the engine again later this year. :shock:

I installed the crankshaft and the oil pump as well as all the end bearing seals. I fitted the timing chain and although not seen on the picture I also put in the after market chain tensioner from CTA.

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I am following the procedure to the letter. But trying to work out some of the terminology is quite tough as they assume you know all the parts off by heart :lol:

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I put the sump cover back on too which was quite a task squeezing it over the rubber end seals but tightening each bolt in turn brought the cover to its final position providing a very good seal indeed.

I am quite happy so far with the engine but I have the domed pistons to look at next.

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And also how to turn this engine the other way up and get it on the bench - I have a plan so I will let you know if it worked or not tomorrow.

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February 17th, 2015, 10:05 pm
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Post Re: 1955 Traction Avant 11cv
At least I had one Traction on the drive today..... not mine though :lol:

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February 18th, 2015, 8:21 pm
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Post Re: 1955 Traction Avant 11cv
My plan with moving the engine worked - so it is now the right way up on a stand.

But there is a slight knocking when I rotate the flywheel. I think the oil pump is fouling the crankshaft. So I will need to get back into the sump - big pain. I also will check the oil pump orientation as I am not 100% sure that it is correct. I though it was but looking upside down back to from tI may have got it 180 degrees out of sync. (this also powers the distributor)

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I also checked the clearance of the pistons to the head. There is a slight scratch on all 4 pistons so they are fouling the edge of the head. But that is good to know as I was anticipating this due to them be domed. So I will take it to the machine shop in Toulouse for them to take out a few millimetres to give clearance.

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So now I have to wait again for the engine I went and collected the rear wings from the Carosserie. They are only finished in primer for now but he has done a decent job seeing as they were rusty pieces of crap when I gave them to him. So I put them on the car and fitted the rear lights. (I will remove the wings just to tart them up a little for now)

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February 18th, 2015, 8:37 pm
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Post Re: 1955 Traction Avant 11cv
Tripyrenees wrote:
At least I had one Traction on the drive today..... not mine though :lol:

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Nice to see the OLD GIRL again :D


February 19th, 2015, 8:39 pm
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Post Re: 1955 Traction Avant 11cv
So I had two issues, one the distributor timing will be 180 degrees out and I had a knocking in the crankcase when I turned the crankshaft.

So I had to lift the engine and remove the sump case (which was annoying as I had sealed it quite well but it came off quite easily in the end). I then rotated the crankshaft and "voila" it was just touching the oil pump.

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So I loosed then pointed bolt on the side of the crankcase and lowered the oil pump out. I then noticed something that is so obvious now - there is a locating hole in the side of the oil pump that the pointed bolt goes into (hence it being pointy I suppose). So I had pushed the oil pump in to much (by about 1 cm). So this then was too close to the crankshaft and it also misaligned the distributor timing (although I think I had it 180 degree out too, so I painted the short side with tippex).
Put it all back together and the engine spins for the first time in 43 years. I put the sump back on and the timing case and lowered the engine back onto the stand.

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I put 12 volts across the starter motor and the pistons went up and down. The small pleasures :lol: :lol:

Put a few other parts onto the engine and placed all the bolts where I think they should go in readiness for the gear box. But first I head to Toulouse tomorrow morning with my head to be machined for clearance.

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February 19th, 2015, 8:58 pm
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Post Re: 1955 Traction Avant 11cv
[quote="Tripyrenees" But first I head to Toulouse tomorrow morning with my head to be machined for clearance.

[/quote]

Surely a bigger helmet would be a simpler, less painful option?


February 20th, 2015, 3:37 pm
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