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question about VIA-Rail Canada F7/9B engine

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  • Member since
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  • 257 posts
question about VIA-Rail Canada F7/9B engine
Posted by Christian H on Friday, August 30, 2019 9:48 AM

Hi,

I want to know - what are the boxes (each between every vent  and edge of the roof)? Can you show me a picture/drawing to fabricate they?

Christian from Germany!

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    October, 2008
  • From: Calgary
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Posted by cx500 on Sunday, September 01, 2019 6:01 PM

I am puzzled about your question.  Are you asking about the winterization hatch that is often found over the end fan on the roof of the F-unit?

John

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  • 257 posts
Posted by Christian H on Monday, September 02, 2019 9:29 AM

I ask for the two exhausts at the end of the roof.

Christian!

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  • From: Pacific Northwest
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Posted by SPSOT fan on Monday, September 02, 2019 10:54 AM

I really can’t tell what the OPs talking about, but I think like Amtrak, VIA must have received it’s earlier locomotives and passenger cars. This would make me think the “boxes” are likely something added by CN or CP not VIA, though it is possible VIA made modifications.

Perhaps the OP could find a picture on the internet and identify these boxes to help forum members answer his question.

Regards, Isaac

I model my railroad and you model yours! I model my way and you model yours!

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Posted by selector on Monday, September 02, 2019 11:35 AM

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Posted by gmpullman on Monday, September 02, 2019 4:07 PM

Not much to go by here:

 VIA_F9b by Edmund, on Flickr

I see two rectangular boxes on the roof itself, covered in plastic wrap, and two more, slanted, on the top of the end wall. The steam generator already has its combustion air intake, round, capped and screened vent. 

Rapido Models mentions that they have included them on their models but they do not specifically say what the function of them is.

In this photo of VIA 6653 you can see a better view of the rectangular roof vents.

 

http://www.rrpicturearchives.net/showPicture.aspx?id=2621670

My guess is a re-routed exhaust stack for each steam generator. Note that there is no longer the round exhaust stack commonly found on the Vapor-Clarkson steam generator. Also note that there appears to be heat related corrosion on both those rectangular stacks.

Best guess, in order to comply with an environmental regulation additional treatment of the S.G. exhaust necessitated the re-routing of the exhaust. Other two boxes on the end wall are probably related to this mission as well.

Good Luck, Ed

 

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    August, 2019
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Posted by Rambo2 on Wednesday, September 11, 2019 7:02 PM
Winterization hatches?

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