SNAIL

Deuche Fester · Posted: Wed Nov 05, 2008 1:05 am Post subject: Engine problems found

Yeah, found this out accidentally because i needed to take apart the engine (screw hole for the air intake for manifold needs helicoil). glad i found this out, but does anyone know if this is still something i can repair or should i be looking for a new cylinder head?

JoZeF · Grave Digger Joined: 25 May 2007 Posts: 1734

Hmmm

You found that when you took the engine apart, or when you took it apart again after (badly) putting it back together ?

You could probably try reshaping the tubes with nice working on a steel bar with a brass hammer, but I can't say that will solve the problem, if there was one in the first place. did the engine leak oil in that area of not ?
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Malte · Lowered Joined: 11 Dec 2007 Posts: 534 Location: Germany

how could that happen?
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backfire · Posted: Wed Nov 05, 2008 11:14 am Post subject:

on 2cv.nl there is a dutch explenation on how to fit new tubes.
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Deuche Fester · Posted: Wed Nov 05, 2008 11:52 am Post subject:

I found this problem by accident, when i had to take off the cylinder head. Good thing, otherwise i would have to take the engine all apart again soon.

I already learned from 2cv.nl that there are ways to getting this fixed. I will still be looking for AM112 heads, maybe that will be even less expensive.

The damage can only be backtracked to the initial builder of my deuche, the guy whom i bought it from. This is the first time for me taking it apart.
Well, it gives me the oppurtunity to take my time and clean the engine properly, revise what needs revising and make it look nice again :)

Bart · Posted: Wed Nov 05, 2008 12:02 pm Post subject:

I just wanted to say that too. I had that problem as well some years ago. To solve it I bought new pushrod tubes from BCC and fitted them with a certain locktight.
If you can't find on 2cv.nl please get back.
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Deuche Fester · Posted: Wed Nov 05, 2008 12:06 pm Post subject:

Just called our local specialist (and friend) and he says the tubes are pretty easy to replace. He will put in a heli coil. Next week i will be able to fit it, until then i will focus on cleaning and inspecting the rest of the engine.

EirikJ · Snailer Joined: 23 Jan 2008 Posts: 36 Location: NOrWAY

How are the tubes mounted originally?
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dyanut · Posted: Wed Nov 05, 2008 8:44 pm Post subject:

As supplied, the tubes are a push fit in the cylinder head, then they need to be expanded using a rather specialised Citroen tool.
Even though I couldn't find one of those, an expanding anchor bolt ("Rawlbolt" in the UK ;o) does this job.

It seems to take longer to remove the damaged tubes than to fit new ones, because the old ones need to be cut lengthways inside the cylinder head to avoid damaging the head.

Ken.
( Wondering what a helicoil has to do with pushrod tubes? )

Deuche Fester · Posted: Thu Nov 06, 2008 12:20 am Post subject:

Hi Ken, thanks for the info. I can get another head with tubes still installed for 15 euro this weekend, so i think i will just replace the whole thing.

About the helicoil, that is the other thing that would have to be done to this head in order to be usable again. The helicoil will be placed in one of the screwholes of the intake manifold.

dyanut · Posted: Thu Nov 06, 2008 1:08 am Post subject:

Hi Dennis,
yep, at that price for a usable cylinder head, it's probably not worth the trouble of fitting new tubes.
It's unfortunate how frequently people make this mistake when reassembling an engine, only realising when there's a huge oil leak after the engine is started.
To avoid this happening, the trick is to carefully push the cylinder head into place and use fingers only to tighten the lower cylinder head nut until the head is seated.
If a spanner/clef is used too early, it's sooo easy to crush the ends of the tubes... Sad

Ken

Deuche Fester · Posted: Thu Nov 06, 2008 3:58 pm Post subject:

I will be very cautious fitting the new head on the cylinder. Now, since i will be cleaning the engine, any tips or recommendations? I think i will take it all apart. I am halfway, and i plan on fitting a lighter flywheel as well. Secondly, i want to take out all parts that are easy and cheap to replace with new parts.

Deuche Fester · Posted: Fri Nov 14, 2008 11:19 am Post subject:

I've been moving ahead and i took out the engine to give it a good wash :)

Need to replace the clutch diafram part, will replace the piston rings, and some more small knick knacks.