Auburn 680 Water Passages

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04 Nov 2019 01:22 #38780 by IndycarBruce
Auburn 680 Water Passages was created by IndycarBruce
I'm having my 1929 Auburn 680 engine rebuilt to the short block stage by a machine shop north of Cincinnati who specializes in Ford Model A & T engines and they pour their own babbitt. I had originally taken it to another shop, but it quickly became apparent I had made a mistake. Anyway, this past spring, the shop in Ohio had rebuilt a 1930 Auburn 6-cylinder which is virtually the same as mine. On the 1930, he said there were distribution tubes or baffles behind the water jacket cover. Mine has none. He thinks if there used to be some sort of water distribution behind the cover, then either it never got put back in after a previous rebuild, or it rusted away. He thinks there should be something there. I'm attaching pictures to show what it looks like behind the cover.

Should my engine have water distribution tubes or baffles behind the water jacket cover? If so, what does it look like?
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04 Nov 2019 03:04 #38781 by RandyEma
Replied by RandyEma on topic Auburn 680 Water Passages
Yes there is usually a water baffle attached to the water jacket side plate. How did you miss breaking all the screws from breaking or did you. R

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04 Nov 2019 03:28 #38782 by IndycarBruce
Replied by IndycarBruce on topic Auburn 680 Water Passages
Thanks Randy. Do you have any pictures of what one of the baffles look like? I'm wondering if I can fabricate a baffle out of stainless steel sheet. I assume the goal his to get the water to flow around the back of each cylinder wall and back out.

Regarding the screws, all of them or nearly all of them broke. He's going to drill them out and install heli-coils.

Bruce

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04 Nov 2019 04:19 #38783 by RandyEma
Replied by RandyEma on topic Auburn 680 Water Passages
I will look

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04 Nov 2019 18:21 #38784 by 1748 S
Replied by 1748 S on topic Auburn 680 Water Passages
Randy, I counted 17 broken bolts still in the block.


Gary Parsons

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05 Nov 2019 15:42 #38791 by johnmereness
Replied by johnmereness on topic Auburn 680 Water Passages
The shop you speak of in Cincinnati does nice work - they have bailed me out of trouble a few times now.

JMM

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