Con rod cotter pin

[Mike V. Florida]

Originally Posted by BILL WILLIAMSON

PETE JUST TOLD YOU THE BEST WAY, LISTEN TO THE MAN!
This is WAY better than OLD TIME cotter key CRAP!
I worked on Jaguars for years & "somehow" they would blow a cotter key end, it would find its' way through the COARSE oil screen, then through the oil pump & end up stuck under the flat oil pressure relief valve, resulting in a LOW oil pressure gauge reading
I'm sure many won't BELIEVE this could happen without wrecking the oil pump, but I've seen it happen, MANY TIMES!
I would DUMP the castellated nuts & use Chrysler nuts & NEVER a problem again.
Bill W.

Next time I'm working on Jaguars I'll be sure to use Chrysler nuts.

[Mitch//pa]

Originally Posted by Mike V. Florida

Next time I'm working on Jaguars I'll be sure to use Chrysler nuts.

You don't want to work on any Jaguars trust me on this

[700rpm]

Originally Posted by Mitch//pa

You don't want to work on any Jaguars trust me on this

Amen to that. It's like cutting a diamond. At least the old Jags.

[Kohnke Rebabbitting]

Many people don't know how to use keys, anymore. They work fine and will not come loose.

You can't install them wrong, and say they don't work.

First of all, they have to be 1/8th in size. Many times, it is the wrong size in smaller keys that are used, because a 1/8th key is hard to get into a hole that is not aligned with the rod, so a smaller key is used, and they are sloppy in the key hole.

If they don't go in the hole, and half the time they don't, run a 1/8th drill bit through the nut, and rod hole, to clean up the nut towers, and make straight the way.
Use 3/4 inch long x 1/8 pins.

1. The nuts should be torqued to 35 foot pounds, and then pulled to line up the nut and rod hole. Install the key so the eye of the pin is side ways of the nut.

2. Tap, not beat, the eye end of the key into the nut tower to set the key eye.

3. Pull the top 1/2 of the key up, and over the end of the rod bolt, and form it down tight with a small hammer, with light taps, as not to smash the key, and still making sure the eye stays tight in the nut slot.


4. Then the other side of the key, bend straight down, and form to the nut tight.

Over 50 years, never had one ever come loose.

Herm.

[31forder]

I appreciate everyone's suggestions.. I'll research the Marsden nuts.. I didn't see any fine metal particulates in the oil I drained or in the oil pan sludge (was only about 1/8" of sludge).. Thanks again

[ian Simpson]

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Originally Posted by 700rpm

Amen to that. It's like cutting a diamond. At least the old Jags.

Loved working on our 1964 MK II. Wish we had kept it.