View Full Version : Spread bore or Siamese
Defender Mike
25th June 2013, 07:14 PM
My engine number is 11700022 going by the manual it was the 22 nd RHD engine built in 1957 and should have been in a 88 petrol not a 109. Is this a spread bore or a Siamese bore? My gearbox number is 170616442 and was built in 1956 and is the correct for a 109 that year. My chassis number is 123800791 and is a 1958 109 . It was sold by Annand & Thompson  in Brisbane . Are there any records from there still available. :)
Mike
101RRS
25th June 2013, 07:18 PM
If it was made in 57 it will be a spreadbore.
Garry
The ho har's
25th June 2013, 07:25 PM
All records from Annand & Thompson were lost in the Brisbane floods of 1974:( So the only thing you can go by is the plate on the radiator support panel, if you have a plate, not a lot of those there either:(
Mrs hh:angel:
B.S.F.
26th June 2013, 09:10 AM
My engine number is 11700022 going by the manual it was the 22 nd RHD engine built in 1957 and should have been in a 88 petrol not a 109. Is this a spread bore or a Siamese bore? My gearbox number is 170616442 and was built in 1956 and is the correct for a 109 that year. My chassis number is 123800791 and is a 1958 109 . It was sold by Annand & Thompson in Brisbane . Are there any records from there still available. :)
Mike
 
According to my L/R workshop manual No.4291 1957 88" 109" and station wagons didn't have separate engine numbers.Why do you think yours should be in an 88"? .W.
Defender Mike
26th June 2013, 09:40 PM
My original workshop manual printed March 1960 says so 1957 RHD engine numbers start at 1170001 ( ) 88 inch petrol.LHD models started with 114700001. Miune was the 22 nd engine built.
Mike :)
Defender Mike
26th June 2013, 09:43 PM
1958  109 inch Series 1  petrol RHD start at 111800001 . Acording to the workshop manual printed March  1960.:)
dennisS1
3rd July 2013, 07:34 PM
Back to simply methods if the oil filter is on the right then its spread and if it is not then it is siamese.
incisor
3rd July 2013, 07:39 PM
Back to simply methods if the oil filter is on the right then its spread and if it is not then it is siamese.
from the drivers seat or from the front of the car :p
Defender Mike
3rd July 2013, 07:59 PM
What he said ^
dennisS1
3rd July 2013, 08:08 PM
I might be a bit different in the way I look at things, But I truly believe that a car only has one right side regardless of which way it is traveling. 
Plus on most siamese engines there will be no oil filter at all, having been long removed.
Dennis
Powered by vBulletin® Version 4.2.4 Copyright © 2025 vBulletin Solutions, Inc. All rights reserved.