Restoration of 1951 Vincent Rapide - Part 90 - Engine Oil Change - Part 1 of 2

Wow, 90 videos already! I hope you will enjoy this video of the engine oil change for the Vincent Rapide. This is more than a little 5-minute-fix, but a very enjoyable process.

Here are the steps that I followed based upon what I've read in the owners handbook and the terrific threads on the VOC (Vincent Owners Club) & forum:
https://www.vincentownersclub.co.uk

I would be most grateful if you could point out anything that I missed, especially anything significant. Also, please consult your own manuals, handbooks and experts if needed.

Here’s a link to the Valvoline VR1 ơn Amazon oil that I use that contains added zinc:
(Please note that I have no affiliation with Amazon or this product)
https://www.amazon.com/gp/product/B00...

Assumptions:
The bike has lost oil over the last year and I've continuously "topped it up" with fresh oil.
I am also not going to remove the stop-valve union completely from the underside of the oil tank with this oil change. I may do this later during a more comprehensive service. You may remember that I had also cleaned out the upper frame member when I rebuilt the bike less than 2000 miles ago

1) Preparing the oil filter:
a. Check I have enough oil!
b. Check that the oil squirt cans are full I have enough oil and it’s the correct oil
c. Insert new oil filter into marmalade jar (MUST be orange marmalade!) and fill with oil to soak
2) Removing Rocker Caps:
a. Remove the spark plugs to assist in turning the engine over as some covers can catch on the tappet gear
b. Remove the rocker cover caps using K1 spanner for 3 reasons:
i. I’m going to be squirting some oil down the pushrod tubes as a re-prime the engine later
ii. I will also anneal the copper rocker cover cap washers to help create a good seal and prevent oil from coming out onto the bike
iii. I will also check the valves / tappets later on
3) Remove the oil feed jet holder:
a. Undo the top acorn nut (1/4” WW)
b. Remove the jet holder with jet and inspect
c. Why do this? I’m going to be squirting some oil down the pushrod tubes to help re-prime the engine later
4) Draining the engine oil from the Oil Tank in the UFM (Upper Frame Member):
a. This can be a MESSY JOB!
b. Remove the banjo fitting from the main oil feed
c. This empties the oil out of the oil tank in the Upper Frame Member (UFM)
d. Check how much oil was dropped - to compare with how much to put back into the bike
e. Dispose of the old oil responsibly!
f. Lookout for swarf!
5) Draining the engine oil from the sump:
a. Drain the sump by removing the main engine drain / sump plug at the bottom of the primary / left-hand side
b. This drains the oil out of the sump and also from the oil filter chamber
c. Check the magnetic tip of the engine drain / sump plug, looking out for swarf!
d. Again, I will anneal the copper washer (if it is copper) to help create a good seal and prevent oil from coming out onto the bike
6) Removing the engine oil filter:
a. Remove the magneto cowl to gain access to the oil filter chamber housing
b. Use the narrower-walled K1 spanner to undo the large chamber cap brass spring-loaded nut
c. Removing the oil filter
d. (Refer to the rebuild video #46 at around 2:42)
e. Thoroughly inspect the oil filter cartridge and brass spring-loaded cap for swarf
f. Clean out the oil filter chamber
g. Measure how much oil was dropped - to see how much has been lost and to compare with how much will be put back into the bike (avoids over-filling)
h. Lookout for swarf!

Now, instead of putting the cowl back on, I’m going to leave it off so that I can look at the breather in another video

1) Fit the new engine oil filter
a. Fit the new oil filter cartridge (PR4/2) for Twins
b. Use the narrower K1 spanner to tighten the massive chamber cap brass spring-loaded nut
2) Re-fit the main engine drain / sump plug
a. Anneal the copper washer (if needed)
b. Fit and tighten the main engine drain / sump plug
3) Re-fit the main engine oil feed banjo
a. Pump engine oil into the chamber via the banjo hole
b. Fit & tighten the banjo
4) Re-fit the oil feed jet holder
a. Pump oil into the oil jet feed
b. Fit and tighten the acorn nut
5) Fill with oil

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