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Post by Penguin45 on Dec 19, 2021 11:29:31 GMT
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Post by Penguin45 on Dec 28, 2021 13:12:14 GMT
Back down in Cornwall for a few days. No. 3 son has broken his car, so he's nicked Julia's and we've had to come down in the 'Crab. A bit of "O" level maths reveals that we have a range of about 390 miles, so I can do door to door on one tank comfortably. No more buying fuel on the motorway. Nice.
C.
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Post by dave1800 on Dec 29, 2021 4:33:08 GMT
I find it quite interesting that a Crab cruising on the motorway can achieve fuel consumption figures not that dissimilar to a modern car even though the Crab RPM is 50% or more higher. I hope there are no major traffic jams to thwart your cunning plan!
Apparently the Crab bore:stroke ratio and capacity is close to the ideal for economy and this is why you will find this adopted by many manufacturers of current engines of around 2L.
David
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Post by Penguin45 on Dec 29, 2021 18:39:50 GMT
Curious. A "square" engine is supposed to be free-revving - just chance that a "B" series runs efficiently at 4-4,500rpm. Works well with a four speed box. The "E" engine in the Maxi wasn't a particularly free-revving engine, so perhaps the real reason for a five speed box? Can't just bung an overdrive on a transverse in-unit gearbox.
C.
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Post by dave1800 on Dec 30, 2021 0:57:34 GMT
I was always surprised how free revving the B series is in the Crab in view of its siamese ports, push rod OHV undersquare design with a mild cam as compared to my DOHC Saabs. Here is a short article that describes some of advantages of the 500cc cylinder size (OK the B is 450cc) and longer stroke that is being widely adopted. Engine dimensionsDavid |
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Post by Penguin45 on Jan 21, 2022 0:08:03 GMT
Not a lot happening at the moment. Perishing cold and I don't half feel it these days.
The car is largely behaving itself. I think the nearside arch liner has moved slightly as there's a rubbing noise on lock, so I'll need to look at that. She's also baulking into first gear and sometimes refusing to engage at all. Adjusted the selector cable slightly (In first gear the cable pulls, rather than pushes, so unlikely to be a cable issue - it's second that becomes difficult as the cable fails). Might be time to see what the slave is up to. There is a very slow leak on the slave to be dealt with, so that could be it.
Otherwise, I'm indoors making rubber bits as demand has picked up again after the Christmas lull. Oh, refurbished the kitchen as well. New sink, taps and stuff. Keeps the boss happy at least.
Stay safe and warm!
Chris.
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Post by Penguin45 on Jan 23, 2022 11:36:02 GMT
10 minute job this morning. Earthing point on inner wing stripped and cleaned as well as all ring terminals - battery, engine and various earths. A good rub down with some coarse wet and dry restored shiny metal. Did the battery connection as well. Starter now goes whizz instead of chug.
C.
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Post by andrewa on Jan 23, 2022 22:14:42 GMT
Them gears don't like that freezing cold oil either....  |
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Post by dave1800 on Jan 24, 2022 0:39:45 GMT
Something they share with some of the Italian supercars of the same vintage! David Them gears don't like that freezing cold oil either.... |
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Post by Penguin45 on Jan 25, 2022 12:52:28 GMT
The baulking is a strange one, in that it comes and goes. Varies from being unable to move the lever forward at all to "spongy-nearly-engaging-gear-grating" and dropping in sweet as you like. Odd.
Arch liner thumped with large hammer. Appears to have "oil canned", as it popped back to a nice concave shape instantly. Choke mechanism and cable cleaned and oiled. Cable re-routed slightly and that's now back working smoothly, instead of going halfway and then requiring both hands to get the rest of the travel.
C.
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Post by dave1800 on Jan 25, 2022 13:33:16 GMT
What happens if you move the gear lever to the 2nd gear position and then forward into first? This was the trick with BMC cars without synchro on 1st gear to get smooth engagement? David The baulking is a strange one, in that it comes and goes. Varies from being unable to move the lever forward at all to "spongy-nearly-engaging-gear-grating" and dropping in sweet as you like. Odd........ C. |
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Post by Penguin45 on Jan 25, 2022 18:51:40 GMT
Doesn't make any difference. I'd drop the selector housing off the back of the gearbox to have a play with but I'm only half way to the oil change. I suppose I'll have to bite the bullet and do it. Oil can't be changed often enough. Keep telling yourself that.
C.
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Post by dave1800 on Jan 26, 2022 8:49:11 GMT
How about when the engine isn't running,with and without clutch?
David
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Post by Penguin45 on Jan 26, 2022 19:52:32 GMT
At the moment*, the gear lever can be moved to 1st with and without the clutch. The last little bit of travel feels resistance though.
C.
*Car has been cooling down for 3½ hours, so oil should be pretty cool.
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Post by 1800heap on Jan 26, 2022 21:41:58 GMT
Hi Chris
How does the guide plate and interlock arm look with regard to wear. The interlock arm has a curve to the edge so that it does not clash with the edge of the 1st/2nd jaw as it moves forwards and back. If you look at it because of the angle it sits at when selecting 1st/2nd, this curve is more important for 1st than 2nd. Perhaps sometimes when you push the stick over for 1st/2nd it is not quite getting out the way at times making it hard to pull the jaw past into 1st. Like I say the interlock arm is less likely to upset 2nd than 1st.
I expect you already looked when you adjusted the cable but I thought it worth a mention before you drop the oil.
Nick
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Petrol flap rubber seal by Penguin 45, on Flickr
Petrol flap rubber seal by Penguin 45, on Flickr
Petrol flap rubber seal by Penguin 45, on Flickr
