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What have you done today with your Austin Seven
The thread drift is perhaps getting a little out of hand but permit me to add that I once measured oil temperature in a "deep" sump over the course of a road run, it never climbed above ~65C. Of course oil temperature at the bearings is another matter altogether - I can only say that it's never given me a problem (on a pressure-fed touring engine).

The flange at the front fouls the frame and some day I will get around to studying it and doing some careful trimming. For engine out I simply remove the sump first, then re-fit it in situ.

The upside of a "deep" sump - possibly true of the shallow cast sumps to some extent - is that they help stiffen the crankcase, though this is very difficult to quantify objectively. But more importantly they can carry more oil! My oil pressure gauge pipe broke loose on a stretch of cobbles in Germany and I lost about 5 1/2 pints over a kilometre of road before spotting the problem. That extra couple of pints saved me a 650 mile ride home on a tow truck...
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Messages In This Thread
Peak District well dressing - by Tony Griffiths - 31-08-2019, 05:00 PM
Genuine old and imitation new - by Tony Griffiths - 01-07-2021, 03:37 PM
Crankcase machining - by Chris Garner - 29-08-2023, 08:59 PM
Massed ballon landing and A7 - by Tony Griffiths - 03-09-2023, 08:27 PM
A beautiful evening drive - by Tony Griffiths - 19-09-2024, 10:16 AM
RE: What have you done today with your Austin Seven - by Chris KC - 13-05-2025, 09:32 AM
Popping and not pulling well? - by Biddlecombe - 10-04-2019, 03:37 PM

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