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Peter Scott's SS Jaguar [Return to Saloons] : Home : Picture Gallery : Wire Frame : Front : Engine : Engine and Gearbox :

Peter Scott's Virtual SS Jaguar

Why not click on the picture for more detail
engine1.jpg
Block
engine2.jpg
Connecting Rods
engine3.jpg
Clutch
engine4.jpg
Gearbox
engine5.jpg
Gear Train
engine6.jpg
Con Rods
engine7.jpg
1.5L vs 2.5L

Engine problems with early 2 1/2 L version

What you see in Con rods are three different con rods. The one on the right is an early duralamin rod, the two on the left are made from steel. The duralamin rods have two problems which I would like to remove from the car you can see in the other pictures.

Problem 1: The duralamin rods can fracture without warning and cause serious damage to their surroundings.

Problem 2: The duralamin expands more than steel when heated with the consequence that the bearing clearances increase. This can result in a shortened bearing life.

During the manufacturing life of the SS Jaguar both steel and duralamin rods were used at various times but the steel rods are more difficult to find for the reasons quoted above. If you know of anyone who would like to find a good home for some steel rods (part number C.805) then please email pmscott@sqf.hp.com.

Whilst C.805 rods are in short supply there is another steel rod option. The 1.5 vs 2.5L Rods image shows the C.805 rod on the right and a steel rod from 4 cylinder 1.7litre engine. This rod is relatively common and appears in SS Jaguar 1.5 litre, Triumph 1800 and Standard 12 and 14 engines. The only difference between the two rods is an offset of one eighth of an inch between the centre line of the big end and the centre line of the small end.

I suspect I would wait long enough to find C.805 rods but I would also like to hear from anyone with some of the 4 cylinder rods looking for a home. With a small amount of machining these can offer a good substitute.

Photographer contact alastair@areyn.demon.co.uk

Owner Peter Scott contact peter_scott@agilent.com

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