Thursday, January 3, 2019

Checking the valve clearance and more cleaning

I was hoping to get the engine mounted on the engine rack today but felt like I needed to continue getting the layers of grease and dirt off the engine and head before I disassemble the head.  I checked the valve clearances today to have a baseline for adjustment during the reassembly process and a couple of the things I'm going to look at a during reassembly are the tappet bucket hold down kits and replacing her camshaft sprockets.  Her car appears to be one of the cars that came with the 2 bolt 'cut out' sprockets that are discussed in this article: http://www.georgiajag.com/Documents/Camshafts.html 
Apparently Jaguar had issues with these cam sprockets and quickly changed the design, the hold downs are strongly recommended by those in the know to keep the buckets seated, with age/time the buckets will creep out and when they do the cam lobes start hitting them.

Nice and purdy 

Checking the clearances on the valves

Water passages look really nice IMHO

This freeze out plug has corrosion around the edges and was likely contributing to the coolant leak, this is on the exhaust side of the engine

Ready to mount it to the engine stand 

Sorry this is sideways but the clearance readings are out of spec.  The intake "I" should be 4 thousandths and the exhausts should be 6 and they will have to be adjusted.
Well that's it for today, tomorrow I hope to have the head off.

Cheers,
Lynn

6 hrs

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