Crankcase ventilation

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PGH
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Crankcase ventilation

Post by PGH »

I have a 1970 saloon. The crankcase ventilation seems to be via a cannister into the air intake (Filter housing). I have a non vented cap on the rocker cover. Is this set up correct for my car?

Thanks for any replies
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bmcecosse
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Re: Crankcase ventilation

Post by bmcecosse »

Possibly - but it would be better to go directly to the inlet manifold - possibly via a tube on the side of the carb ? If the carb has that tube ? Putting the fumes into the air filter - covers the paper element in oil and soon gums up the whole thing.
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PGH
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Re: Crankcase ventilation

Post by PGH »

No tube on the side of my 1970 saloon. Presumably the original fitment on this car was via the cannister direct to the air filter. Is this correct?
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bmcecosse
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Re: Crankcase ventilation

Post by bmcecosse »

I would have expected to be via the special diaphragm valve on the inlet manifold - is there any evidence of such a thing on the car ? the pipe spraying oil over the air filter is to be avoided at all costs!
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PGH
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Re: Crankcase ventilation

Post by PGH »

Hi

This is a photo of my crankcase ventilation set up. There is no alternative place for pipe currently going into air cleaner. Is this the standard set up?[frame]Image[/frame]
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stevey
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Re: Crankcase ventilation

Post by stevey »

The breather should go from the carb in the closed circuit breather. There should be a little tube coming out of the carb you can attach it to. This is how mine is set up.
[frame]Image[/frame][frame]Image[/frame]

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PGH
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Re: Crankcase ventilation

Post by PGH »

Hi

Thanks for the photo showing your set up. There is nothing like that on my carb to allow the pipe to be attached. How strange and confusing.
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fussyoldfart
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Re: Crankcase ventilation

Post by fussyoldfart »

You probably don't have the original carburetor. My 1967, Maggie, has a ventilation system with a diaphragm controlled valve at the centre of the intake manifold but that may have been fitted only to export models.
Fussyoldfart in Welland Ontario.

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Declan_Burns
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Re: Crankcase ventilation

Post by Declan_Burns »

I don't think all carbs had that-you can always tap the inlet manifold for a stub-but remove it first so that you don't run into swarf problems.
Regards
Declan


Regards
Declan
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PGH
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Re: Crankcase ventilation

Post by PGH »

Looking at ESM Morris Minor Spares co, I see that you can buy two different carbs for the 1098 model. One has a breather pipe connection and the other one doesn't. Interesting to know when the change occurred.
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bmcecosse
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Re: Crankcase ventilation

Post by bmcecosse »

Long before 1970 I'm pretty sure! Looks like your car has an earlier carb and manifold fitted.
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