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1stpop
Joined: 03 Dec 2007 Posts: 109
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Posted: Sun Mar 04, 2012 7:47 pm Post subject: Morris 8 gear box |
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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).
My car is a 1946 Morris 8 Series E |
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1stpop
Joined: 03 Dec 2007 Posts: 109
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Posted: Mon Mar 05, 2012 8:36 pm Post subject: Update |
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The bolts are missing because the threads have been stripped in the engine block!
Anyone know which is best - re-tapping the threads or as suggested by a mate - driling through the block and using threaded bar to join gearbox to engine? |
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norustplease
Joined: 11 Apr 2011 Posts: 779 Location: Lancashire
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Posted: Mon Mar 05, 2012 10:10 pm Post subject: Hybrid bolts? |
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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. _________________ 1953 Citroen Traction
1964 Volvo PV544
1957 Austin A55 Mk 1
Boring Tucson SUV |
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JohnDale
Joined: 19 Mar 2008 Posts: 790 Location: Kelvin Valley,Scotland
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Posted: Sun Mar 11, 2012 11:41 am Post subject: |
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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. _________________ 1958 Ford Zephyr Mk2 Convertible
1976 Ford Granada Ghia. |
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1stpop
Joined: 03 Dec 2007 Posts: 109
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Posted: Tue Jun 12, 2012 6:05 pm Post subject: |
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once again fantastic advice - worked a treat |
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ukdave2002
Joined: 23 Nov 2007 Posts: 4105 Location: South Cheshire
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Posted: Tue Jun 12, 2012 8:44 pm Post subject: |
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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.
Dave |
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