Henrietta Overhaul

This page is an illustrated story about overhauling a New Major. It will gradually be fine-tuned into a cohesive article.

Rough text:

b_major_1 brian13 3. Now we can see more clearly

b_major_2 brian14 4. 4.Timing marks and pointer on MK1 engines

b_major_3 brian11 1. Wishbonepin removed

b_major_4 brian12 2. Move front axle carefully away

b_major_5 brian15 5. Timing gears with marks highlighted

b_major_6 brian16 6. Timing marks

b_major_7 brian17 7. Timing marks on aux shaft drive

b_major_8 brian18 8. Note the oil pressure relief valve on the Mk1 engine

b_major_9 brian19 9. This looks like the problem

b_major_10 brian20 10.No 1 piston and Big End sees the light of day after 50 years

b_major_11 brian21 13.Henrietta's clutch sees the light of day after 50 years

b_major_12 brian22 14.Thrust bearing sounds rough

b_major_13 brian23 15.Clutch disc is well oiled. Replacement liners needed

b_major_14 brian24 17.Now we can see the problem

b_major_15 brian28 20.The crankshaft. Note the heavy webs. This crank also has hollow journals. It was replaced with a stronger version early in the Majors life. This one has done 50 years and apart from No 1 has very little wear

b_major_16 brian27 9.2 Head casting code K21T

b_major_17 brian25 18. Number 1 crank journal is a bit scored

b_major_18 brian26 19. Very light flywheel. Not as heavy as the diesel version

Photos: