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mrmojorisin
Samba Member
Joined: November 08, 2007
Posts: 43
Location: UK
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 Posted: Tue Jul 10, 2018 2:25 am Post subject: Help identifying this pipe under engine ? |
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Hi,
This is the underside of a 1960KG Coupe, 1200, can someone please tell me what the small pipe opening you can see just behind the exhaust slightly to the right in this picture is.
I stopped to take a few photos last night and there were fumes coming out of this pipe.
Is that right, do I need to worry ?
Thanks,
Mojo
Untitled by mr_mojorisin_2000, on Flickr |
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sputnick60
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Joined: July 22, 2007
Posts: 3916
Location: In Molinya Orbit
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mrmojorisin
Samba Member
Joined: November 08, 2007
Posts: 43
Location: UK
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| Posted: Tue Jul 10, 2018 5:10 am Post subject: Re: Help identifying this pipe under engine ? |
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Hey thanks thats very helpful.
Should I get the rubber boot, and its ok to see slightly oily air coming out ? |
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sjbartnik
Samba Member
Joined: September 01, 2011
Posts: 5994
Location: Brooklyn
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| Posted: Tue Jul 10, 2018 7:30 am Post subject: Re: Help identifying this pipe under engine ? |
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| mrmojorisin wrote: |
Hey thanks thats very helpful.
Should I get the rubber boot, and its ok to see slightly oily air coming out ? |
Yes it's ok to see slightly oily air coming out, that's what it's for.
Yes you should get the boot.
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1965 Volkswagen 1500 Variant S
2000 Kawasaki W650 |
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didget69
Samba Member
Joined: July 22, 2004
Posts: 4927
Location: Raleigh, North Carolina
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| Posted: Tue Jul 10, 2018 6:58 pm Post subject: Re: Help identifying this pipe under engine ? |
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Back in the day, this was known as a 'road-draft breather system'...
bnc
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I never found the need to impress people with any mechanic certifications, trophies or track wins... unless it was for Mom to post on the refrigerator door. |
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PeteSC
Samba Member
Joined: January 26, 2011
Posts: 881
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| Posted: Wed Jul 11, 2018 10:55 am Post subject: Re: Help identifying this pipe under engine ? |
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I think a 1960 is a 36hp motor, which did not come with the rubber boot over the draft tube. That's an addition to later period engines if I'm not mistaken. Even if you have a stale air 40 horse I don't think it had the rubber boot either.
If you have noticeable fumes coming from the draft tube it's likely blow by from one or a combination of possible sources - worn/broken rings, worn valve guides, worn valve seats. I'd be a little concerned and would certainly monitor it.
I had the same problem on my 36 horse and replaced my pistons/cylinders and put on refurbished heads just this past weekend. My engine started doing the same as yours; at first just little puffs from the draft tube. Over time it was very noticeable smoke/oil vapor from the tube, and forcing oil out from behind the pulley and really making a mess. All while the car ran strong. Turns out mine had several broken compression rings.
Last edited by PeteSC on Thu Jul 12, 2018 9:00 am; edited 2 times in total |
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mrmojorisin
Samba Member
Joined: November 08, 2007
Posts: 43
Location: UK
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| Posted: Thu Jul 12, 2018 2:13 am Post subject: Re: Help identifying this pipe under engine ? |
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Thanks all for your replies.
PeteSC I think you have pretty much summed up my situation, looks like a little TLC is needed. |
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