Job # 2182 (WQF) - Jaguar XK120
Full engine rebuild


Update report - December 10, 2016

Putting the finishing touches to this challenging rebuild.



About to install the cylinder head
Cylinder head now looks better than new











Almost ready to test run on the engine stand





Another challenging engine rebuild underway in the CJ machine shop. This engine was in extremely poor condition, despite supposedly having very few miles on a substantial rebuild. The water jackets and coolant passageways were as blocked as you are ever likely to see in an XK engine. There was significant damage to almost every bearing and journal, the camshafts required extensive repairs, the cam caps were out of alignment and the main caps were in urgent need of an align hone.




The engine as received
























Removing the cylinder head using the shop crane










Main cap bolts and rod bolts will be upgraded
Severe bearing damage revealed during tear down










Crank journals also badly damaged
Bearings worn through to copper










Ugly deposits behind the freeze plugs
Water jackets are completely blocked










After 2 sessions in the detergent oven, we still had
all this sediment lurking deep inside the block!











Oil pump has been rebuilt
Preparing short block components for assembly










Uprated ARP main cap bolts
























This cylinder head has a story to tell!










Note contaminants in oil visible on cam bearings
Pressure testing the cylinder head










Pre-existing weld repair will be metal finished
Now much more presentable!!










Cam caps required align hone
Machining tappet guides for oversized
custom tappets










Cylinder head machine work completed
Head on the assembly bench









To be continued...
CJ stainless steel valves


Go to other CJ engine rebuilds