1926, Bullnose Morris Oxford 3/4 coupe

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Re: 1926, Bullnose Morris Oxford 3/4 coupe

Post by toomanysabres » Sun May 22, 2016 2:45 pm

tony.idle wrote:That's a robust-looking crankshaft - must be good for at least 4000 rpm now
So that's what the bent coat hangery thingy is :D


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Re: 1926, Bullnose Morris Oxford 3/4 coupe

Post by scimjim » Sun Sep 25, 2016 7:03 pm

Had to do a double take on the M1 today (I was a bit too busy merging in a LHD motorhome to count the number of doors!)
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Re: 1926, Bullnose Morris Oxford 3/4 coupe

Post by alan.wells » Sun Sep 25, 2016 7:21 pm

Hi Jim,
What was his speed, I've been doing some tuning on mine, but I still cannot get to 50 mph.
Thanks
Alan


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1926 Bullnose Morris
3/4 coupe with dicky
( project looking good )
M/N 5637

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Re: 1926, Bullnose Morris Oxford 3/4 coupe

Post by scimjim » Sun Sep 25, 2016 8:32 pm

Not sure what his cruising speed would be Alan, but we were just joining the motorway so I was probably at 60mph and he was at 50ish?


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Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
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Re: 1926, Bullnose Morris Oxford 3/4 coupe

Post by alan.wells » Wed Nov 02, 2016 4:50 pm

Hi Folks,
More work carried out on the original engine since the last post, as you can see that all components are now fitted, ie valves, camshaft with only front and rear bearing, the crank with 3 bearings ( not a coat hanger ), pistons and oil pump, and flywheel The oil pump can be seen in the centre and is driven from the camshaft being pump action, the same way as the tappet cam follower, the pump only feeds the 3 main bearings and the con rod dippers feed the big end as previously mentioned. The sump has now been fitted and just the cylinder head studs and head to complete the engine, plus paint of course.
Regards
Alan
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This is the original oil pipe plumbing not mine
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1926 Bullnose Morris
3/4 coupe with dicky
( project looking good )
M/N 5637

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Re: 1926, Bullnose Morris Oxford 3/4 coupe

Post by ocheye » Wed Nov 02, 2016 7:20 pm

Have you fitted a seal where the cam drive to the magneto goes? Mine leaks like mad. If you have done it I would welcome any tips
Looking great BTW
Cheers
Andy



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Re: 1926, Bullnose Morris Oxford 3/4 coupe

Post by alan.wells » Wed Nov 02, 2016 7:51 pm

Hi Andy,
There's no seal in the magneto drive, if you have end float or lateral play, it will be the bush, it's a case of strip it down, and replace the bush, but not easy, but check for tightness first, I can send copy of method if you needed, let me know.
Regards
Alan


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1926 Bullnose Morris
3/4 coupe with dicky
( project looking good )
M/N 5637

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Re: 1926, Bullnose Morris Oxford 3/4 coupe

Post by ocheye » Wed Nov 02, 2016 7:57 pm

I will be having a look at it over the winter, Alan. There is definitely play there. Don't know if the wear is in the bush or the shaft though. I would appreciate a copy of the method if you could email it to me. I've got to push out the broken valve guides too which will be fun. Someone in the past has tried bashing them with a hammer (I assume). Still runs though. Amazingly!

Andy



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Re: 1926, Bullnose Morris Oxford 3/4 coupe

Post by alan.wells » Tue Dec 27, 2016 2:26 pm

Hi folks,
Well the original engine is now rebuilt and put together and painted in the colour specification, engine colour for Cowley is Red and Oxford is Blue.
I am hoping to change engines over some time within the next couple of month, and expecting it to be finished by the end of March. Then I hear you say "you'll never be finished", which is true, but I'm hoping the engine is good so I can have a few years of good motoring.
This engine will be run on Comma Classic 20w50 API SE CC in stead of the oil I using in the engine fitted at present SAE straight 40, this will solve the problem of removing of the sump every 1000 miles, to clean out the carbon and rubbish sludge which collects on the base of the sump, the only filter is a thin wire mesh which is attached to the sump plug which the oil pump sits in.
All the best to all car enthusiasts for 2017
Regards
Alan & June
Attachments
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1804 cc 13.9hp side valve with wet oil clutch
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SST 18Ti
Motorhome
1926 Bullnose Morris
3/4 coupe with dicky
( project looking good )
M/N 5637

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Re: 1926, Bullnose Morris Oxford 3/4 coupe

Post by philhoward » Tue Dec 27, 2016 2:58 pm

And I thought Cowley was in Oxford? I guess it wasn't in 1926. That also says there were 2 factories?


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Re: 1926, Bullnose Morris Oxford 3/4 coupe

Post by Elizabeth's dad » Tue Dec 27, 2016 3:42 pm

philhoward wrote:And I thought Cowley was in Oxford? I guess it wasn't in 1926. That also says there were 2 factories?
Aren't Oxford and Cowley model designations?

Looking great by the way.


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Re: 1926, Bullnose Morris Oxford 3/4 coupe

Post by ocheye » Tue Dec 27, 2016 7:42 pm

Looking great Alan. You've done a brilliant job. There are different schools of thought about using detergent multigrades, even classic oils, in the Hotchkiss engines but I can't remember all the technical pros and cons. If you have any misgivings let me know and I'll see if I can dig out the info for you. Have a great New Year with the new engine!
Andy



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Re: 1926, Bullnose Morris Oxford 3/4 coupe

Post by alan.wells » Fri Mar 10, 2017 9:04 pm

Hi All,
A lot of hard work carried out over the past 3 months, the engine ( Flatnose Oxford ) I fitted at the beginning of the rebuild was the one my Dad bought as a replacement for the original ( Bullnose Oxford ) engine. The Flatnose engine has now been removed, it will be checked over and put away for the future, the recently rebuilt Bullnose engine ( original engine ) has now been fitted to the car, with the gearbox which has been checked over and a new clutch fitted. I expect to have the car back on the road for testing in the next 2 to 3 weeks.
Please see attached photos, the gearbox picture shows the main drive, ( top opening ) method connecting the flywheel to the clutch, using springs, collets and retaining pins, their are 6 of these and it's very difficult to compress the springs to fit the collets & pin, in turn, the clutch is retained / attached to the 1st motion shaft of the gearbox, a bit complicated to explain, but this was 90 year ago design.
Regards
Alan
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SST 18Ti
Motorhome
1926 Bullnose Morris
3/4 coupe with dicky
( project looking good )
M/N 5637

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Re: 1926, Bullnose Morris Oxford 3/4 coupe

Post by alan.wells » Sat Apr 15, 2017 2:32 pm

Well, we are now back on the road, the engine is quite tight but I've had problems with the size of my original battery not coping, so replaced the 42 AH 350 with 70 AH 680, and now no cranking problem. good oil pressure, Zero when hot on tick over, this is normal, but running between 6 & 10 psi, so very happy up to now.
The engine oil has changed from straight 40w to Comma Classic 20w 50 API SE CC, this should keep the engine cleaner and avoiding the removal of the sump every 1000 miles for a clean due to small standard mesh filter.
The gearbox oil has changed from straight 140w to Redline Gear Oil fully synthetic Heavy Shockproof giving me a viscosity of 75w/90. this is to reduce friction and drag through the straight cut non synchromesh box, this oil may help some of the sprinters transmission but not syncro boxes or LSD, please check for suitability. "Very Expensive"
I'm hoping to get the car out again soon,weather permitting for further test runs.
Regards
Alan
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Check for Suitability for your cars
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Motorhome
1926 Bullnose Morris
3/4 coupe with dicky
( project looking good )
M/N 5637

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1926, Bullnose Morris Oxford 3/4 coupe

Post by alan.wells » Wed Aug 02, 2017 6:09 pm

Hi all,
This update is regarding the engine and gearbox oils, firstly, the engine oil, I had filled the engine with the Comma Classic 20-50's, but have found that the engine becomes more noisier, the tappet being the main cause, so back to the straight 40's, the gearbox oil, the redline has also been removed, and back to straight 140's, the redline became too thin, and as the Bullnose is incontinent, oil was leaking from all points, more oil on the garage floor on each return than in the gearbox.
On the whole the engine is performing quite well, but speed is restricted to the 40mph, need to get more miles on before opening up the rev range, apparently not like a modern engine, the running in distance is around the 3K, and not two circuits at Curborough.
I have 2 gallons of Comma Classic 20-50's for sale at £17.50p each and will have them with me at ScimFest.
Regards
Alan


SST 18Ti
Motorhome
1926 Bullnose Morris
3/4 coupe with dicky
( project looking good )
M/N 5637

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