front cover 1B3338 with radial seal

Thread for Oil gauge:

I have on the engine block 1/4" BSP female and the oil pressure pipe ends with 1/" BSP male.

Inbetween is an flexible hose with female ends. To get the female end of the flexible hose to the engine, an adapter with two male ends is fitted.

I have fitted an electrical fuel pump on my A90 Atlantic, therefore a oil pressure switch must be available for security reason.

I bought an oil pressure switch on ebay (thread 1/8 NPD) but the t-Adapter is the problem. I couldn't find one with 1/4" BSP on both ends, only 1/8" BSP is available (~ 10 GBP).

to be continued....

Lucas - type M418G, L-3

The distributer for the A90 Atlantic is: Lucas - type DVX4A

in one of the earlier service book (June 1950) I found DK7.4A.

later Lucas DM2 (P4)

later type starts May 1951

Service number = 40320A/B

rotation = ClockWise

ECM curve = 430

Model = DM2P4

RPM 1 = 2500 / Advance1 (± 1°) = 17°

RPM 2 = 1250 / Advance2 (± 1°) = 9°

RPM 3 = 600 / Advance3 (± 1°) = 2°

no advance below = 325years = 1949-52

make = Austin, Austin Healey

models = 1949-1952
Austin A90 Atlantic, 1953-56 Austin Healey 100-4 BN1/2

Comments = superseded by 40495

Lucas - type B12

The sparking plugs fitted to the A90 Atlantic is the long reach 14 mm type "Campion NA8"

I have a N5C on my A90 Atlantic

Austin A90 Atlantic is fitted with two

SU H4 carburettors.

(AUC 537, 2660 cc)

I bought now (March 2010) new tyres from Munich (www.oldtimer-reifen.de).

There is a Radial tyre made by Michelin. I choose the radial type instead of the diagonal type for security and comfort, the price was nearly the same as for the diagonal type.

5.50x16 X-Stop

The correct tube for the A90 Atlantic convertible rim is the TR-15 one.

The TR-13 also fits, because its smaller, but to avoid movement of the tube, the TR-15 should be taken.

valve clearance = 0,3mm

Dynamo for the Austin A90 Atlantic:

Lucas - Type C45 PV3 (early type)

Lucas - Type C45 PV4 (later type)