Posted: Sun Mar 04, 2012 7:47 pm Post subject: Morris 8 gear box
Can anyone tell me the correct size and length of the bolts used to fix the gear box (bell housing) to the the engine? Although the top bolts are in place the bolts around the bottom are all missing (3 I think - or what I can see without removing the car floor).
Posted: Mon Mar 05, 2012 10:10 pm Post subject: Hybrid bolts?
I think that you may have some metric fine 8-1 mm bolts with a 1/4 Whitworth head, which are 1" long. This is part of the 30's Morris legacy which used former armaments manufacturer, Hotchkiss, acquired in WW1, to build engines and allowed them to use continental tooling with, bizarrely, Whitworth heads as a concession to British toolkits. They are probably the same as your sump bolts.
You could try drilling/retapping to the next size up and using a modern metric bolt size. _________________ 1937 Austin 10 Cambridge
1946 Morris 10 M series
1953 Volvo PV444
Boring Renault Megane
Joined: 19 Mar 2008 Posts: 299 Location: Kelvin Valley,Scotland
Posted: Sun Mar 11, 2012 11:41 am Post subject:
Retap! Drill through both gearbox flange & block(without going deeper than original) to tapping size for next larger size sourcing allen headed bolts(for clearance) & tap set to suit before drilling. Drill(carefully) through gearbox flange ONLY to clearance size. Tap block & fit allen bolts. Cheers,JD. _________________ Use 'em or lose 'em.
1960 Ford Zephyr.
1968 Triumph 2000.
Joined: 23 Nov 2007 Posts: 1722 Location: South Cheshire
Posted: Tue Jun 12, 2012 8:44 pm Post subject:
If the gearbox is out, it costs less than £40 to replace every bearing and bush, about an hours effort, so well worth it as new bearings & bushes will protect some of the bits that can't be bought of the shelf.
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