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mygreenbus
Samba Member
Joined: February 14, 2007
Posts: 1154
Location: Palm Coast, FL
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 Posted: Thu Mar 14, 2019 2:12 pm Post subject: Breather 72 Type 4 |
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I am getting ready to clean the breather of my 1.7 in my 72 Bus. It was originally a fuelie but converted to carb prior to my ownership. Am I correct in my understanding that with the carb I should take out the fuzz or whatever you want to call it, in the breather? It vents into the air cleaner so it kind of makes sense its not needed. Thanks.
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50351
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| Posted: Thu Mar 14, 2019 2:53 pm Post subject: Re: Breather 72 Type 4 |
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The correct carburetor breather was nothing but an empty box with a minimal amount of baffles. There was no valve at all, just a nipple for the hose to hook to.
I picture of what you have would be good. |
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mygreenbus
Samba Member
Joined: February 14, 2007
Posts: 1154
Location: Palm Coast, FL
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| Posted: Thu Mar 14, 2019 3:01 pm Post subject: Re: Breather 72 Type 4 |
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 51149
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Thu Mar 14, 2019 3:06 pm Post subject: Re: Breather 72 Type 4 |
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You have a carb breather already, no need to do anything to it.
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Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
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Слава Україні! |
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mygreenbus
Samba Member
Joined: February 14, 2007
Posts: 1154
Location: Palm Coast, FL
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| Posted: Thu Mar 14, 2019 5:52 pm Post subject: Re: Breather 72 Type 4 |
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So cleaning is just carb cleaner, checking that its not plugged?
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 51149
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Thu Mar 14, 2019 6:04 pm Post subject: Re: Breather 72 Type 4 |
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| mygreenbus wrote: |
| So cleaning is just carb cleaner, checking that its not plugged? |
Yes, spray a load of carb cleaner into it, cap both ports with your fingers or hand (wear gloves) and shake shake shake, let it soak and repeat. You'll probably never get everything out of it, but try to get any thick buildups off.
_________________
Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
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mygreenbus
Samba Member
Joined: February 14, 2007
Posts: 1154
Location: Palm Coast, FL
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| Posted: Thu Mar 14, 2019 6:21 pm Post subject: Re: Breather 72 Type 4 |
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Is the lid the only part that comes off?
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 51149
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Thu Mar 14, 2019 6:25 pm Post subject: Re: Breather 72 Type 4 |
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Yes, and it's a sealed unit, not much inside except a baffle, nothing below in the crankcase, although I have seen a pot scrubber pad stuffed in there on worn engines to slow the progress of the oil.
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Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
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Ktk833
Samba Member
Joined: April 04, 2017
Posts: 28
Location: Nairobi, Kenya
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| Posted: Fri Mar 15, 2019 12:34 pm Post subject: Re:72 Type 4 heating query |
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Hi.
Hope well. Pardon me for hijacking someone's topic- I've tried all to create my own topic thread but seems I don't know how to or not able to .
I am working on my recently acquired dual carb 1800cc type 4. The previous owner had it overhauled but they fit a centrally mounted carb and it heavily backfired.
I unmounted their modification and have fit 2 carbs- not original equipment though.
I have managed to synchronize both carbs- the same air volume being pulled in by each pair of cylinders.
My challenge faced though is cylinders 3/4, when running, get the exhaust system really hot. The difference in heat generated in comparison to cylinders 1/2 is immensely different with 1/2 feeling like what I'd expect of a good engine.
On the intake manifolds, when engine running, the temperatures keep cool almost equal on both cylinder sets but when you turn the engine off, the manifold 3/4 becomes really hot- picking the heat from the exhausts. In short, the cylinders 3/4 is getting really hot.
I checked valve clearance and did them to 0.15mm clearance on overnight cold engine.
I checked the cooling tinware and they all seem well in place.
My question is, is that normal of that engine? If not, what could I be facing? Kindly assist.
Regards.
KTK 833 |
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mygreenbus
Samba Member
Joined: February 14, 2007
Posts: 1154
Location: Palm Coast, FL
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| Posted: Fri Mar 15, 2019 12:45 pm Post subject: Re: Breather 72 Type 4 |
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| busdaddy wrote: |
| Yes, and it's a sealed unit, not much inside except a baffle, nothing below in the crankcase, although I have seen a pot scrubber pad stuffed in there on worn engines to slow the progress of the oil. |
All clean inside, it actually cleaned up quit well. Made a new thicker gasket for it as I felt like the tension to hold it in place might not have been enough to hold a good seal at highway speeds when the pressure it a bit higher and when I suspect it was doing its most blow by...we will see.
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50351
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| Posted: Fri Mar 15, 2019 1:48 pm Post subject: Re:72 Type 4 heating query |
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| Ktk833 wrote: |
Hi.
Hope well. Pardon me for hijacking someone's topic- I've tried all to create my own topic thread but seems I don't know how to or not able to .
I am working on my recently acquired dual carb 1800cc type 4. The previous owner had it overhauled but they fit a centrally mounted carb and it heavily backfired.
I unmounted their modification and have fit 2 carbs- not original equipment though.
I have managed to synchronize both carbs- the same air volume being pulled in by each pair of cylinders.
My challenge faced though is cylinders 3/4, when running, get the exhaust system really hot. The difference in heat generated in comparison to cylinders 1/2 is immensely different with 1/2 feeling like what I'd expect of a good engine.
On the intake manifolds, when engine running, the temperatures keep cool almost equal on both cylinder sets but when you turn the engine off, the manifold 3/4 becomes really hot- picking the heat from the exhausts. In short, the cylinders 3/4 is getting really hot.
I checked valve clearance and did them to 0.15mm clearance on overnight cold engine.
I checked the cooling tinware and they all seem well in place.
My question is, is that normal of that engine? If not, what could I be facing? Kindly assist.
Regards.
KTK 833 |
Go to the "Bay Window Bus" index page. You will find it near the top left of this page. Once on the "Bay Window Bus" page look for the "New Topic" box which will also be towards the top left corner of the page and click it. |
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