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The Kingpin Job - Autumn 2014 #228294
13/10/14 07:08 PM
13/10/14 07:08 PM
Joined: Dec 2008
Posts: 17,969
South Yorkshire
DaveW Offline OP
Roadster Guru
DaveW  Offline OP
Roadster Guru
Member of the Inner Circle

Joined: Dec 2008
Posts: 17,969
South Yorkshire
Today I made a start on Mr Bumble's kingpins. First here's all the stuff on the bench.



I used some thick leather, doubled over as a buffer and the spinners came off much easier than the old earless spinners.



Here's my lifting beam under the cross tube and held by axle stands.


This next photo is quite important. The Caparo calipers don't use split pins, they have dumb bell like retainers which can be drifted out either way, but are held in place by "traditional" spring clips. I managed to damage one of the spring clips when removing, but have some new MGB clips in stock. However, although they look the same, the MGB items are very slightly narrower,so not really suitable as this would allow the pins to move slightly sideways. They would do as a short term fix. I rang BHM, but they don't carry the clips in stock, and have not supplied any. They don't come with new pads by the way. So I rang Rutters, but got the same response. So I've contacted Caparo direct, but am not hopeful as these parts are pence in value even though they are safety critical. I'm presently looking into an alternative source so will let you know what turns up.
The other important thing to note is that the pads have a lip on the outside edge caused by the pads slightly overlapping the outer edge of the disc. I've filed the lip away, but it will recur as the pad and disc don't exactly align!
These pads are exactly the same as on my Roadster which has the earlier Lockheed calipers.



I hung the caliper out of the way on a cable tie, after checking that none of the pistons were sticking.
Note that the flexihose is armoured, but also has a clear plastic cover. The plastic cover has been worn through in one place, which looks like it may have rubbed on the tyre or rim. So check yours...... This has not damaged the armoured braiding. When I fitted the brake reaction bars, I added a rubber hose buffer because the hose does touch the reaction bars. Note also that the caliper has two bleed screws.


Here's the split pin, just emerging at "two thirty" - o'clock. Needle nosed pliers are essential. The nut was finger tight, which is usual.



Here's the bare stub. The nut visible at 9 o'clock is the sensor I've spoken about before. A cable runs from the back of this, into the loom at a multi plug under the wing.
Note the end of the rack. The boot is only held on by a cable tie, so it's very easy to pop the boot off and check the state of the lubrication. Pack a bit of grease in the end if it's dry. If you put it on 'right lock', the rack will take the grease inside when you straighten up.



The S shape cable (below) is the sensor cable, which is threaded into the backplate and secured by the nut in the earlier photo.



This is the back of the disc (with fresh paint). Note the evenly spaced bolts and nuts. I believe these are to trigger the sensor, and I wonder if there will be this many on the other side.



And here we are with track rod end off, lower reaction bar removed, and lowering rods fitted ready. I've also cracked the top lube bolt, and bottom kingpin nut. Note that this stub axle is very sticky on turning and is grabbing the main spring, even though it has MMC steering bearings. When I get the stub off I will post pictures of the MMC bearing next to the Mulfab bearing.



I've been cleaning up as I've gone along, but be in no doubt that this job is incredibly messy. Grease everywhere...... grin2
Anyway, after a leisurely day, time for a break. wine


DaveW
2005 Corsa Red Roadster S1
2016 Saffron Yellow (Narrow) Plus 4
Re: The Kingpin Job - Autumn 2014 [Re: DaveW] #228299
13/10/14 07:23 PM
13/10/14 07:23 PM
Joined: Feb 2012
Posts: 5,447
Taunton
deano Offline
Charter Member
deano  Offline
Charter Member

Joined: Feb 2012
Posts: 5,447
Taunton
Good write up Dave as usual.


Martin (Deano)
Re: The Kingpin Job - Autumn 2014 [Re: DaveW] #228309
13/10/14 08:20 PM
13/10/14 08:20 PM
Joined: Jun 2008
Posts: 1,584
County Down
lightsphere Offline
Talk Morgan Enthusiast
lightsphere  Offline
Talk Morgan Enthusiast

Joined: Jun 2008
Posts: 1,584
County Down
Dave,
I have read every line and studied all the images, some of the words ring a bell and it all looks familiar under the car yet I haven't a clue. I can only say I still remain impressed with your presentations and details after 5 years or more of following your articles. However as much as I enjoy looking at this work I still remain bottom of the class when it comes to Morgan maintenance, thank goodness for the Dealer network.

Re: The Kingpin Job - Autumn 2014 [Re: DaveW] #228319
13/10/14 09:21 PM
13/10/14 09:21 PM
Joined: Feb 2011
Posts: 14,003
Cumbria UK
Jays Offline
Member of the Inner Circle
Jays  Offline
Member of the Inner Circle

Joined: Feb 2011
Posts: 14,003
Cumbria UK
Nice write up as usual Dave thumbs Look forward to the next instalment!!


Jays
Former Morgan owner. Gone but hopefully not forgotten!
Re: The Kingpin Job - Autumn 2014 [Re: DaveW] #228323
13/10/14 09:36 PM
13/10/14 09:36 PM
Joined: Nov 2011
Posts: 2,963
Australia - NSW Mid North Coas...
OZ 4/4 Offline
Talk Morgan Expert
OZ 4/4  Offline
Talk Morgan Expert

Joined: Nov 2011
Posts: 2,963
Australia - NSW Mid North Coas...
Brilliant write up, thank you thumbs


A Morgan Identified Fastidious Owner...
2011 4/4 Bespoke, 1981 Delorean, 1936 Auburn Boat Tail
Re: The Kingpin Job - Autumn 2014 [Re: DaveW] #228358
14/10/14 01:23 AM
14/10/14 01:23 AM
Joined: Jan 2012
Posts: 14,976
Perth, WA, Australia
Richard - Aus Offline
Member of the Inner Circle
Richard - Aus  Offline
Member of the Inner Circle

Joined: Jan 2012
Posts: 14,976
Perth, WA, Australia
Excellent - looking forward to the next parts. Any hints on reaming will be greatly appreciated.


Richard
1976 4/4 4 Seater
Re: The Kingpin Job - Autumn 2014 [Re: DaveW] #228380
14/10/14 07:50 AM
14/10/14 07:50 AM
Joined: Aug 2013
Posts: 11,806
Salisbury, UK
Peter J Offline
Formerly known as Aldermog
Peter J  Offline
Formerly known as Aldermog
Member of the Inner Circle

Joined: Aug 2013
Posts: 11,806
Salisbury, UK
Dave,

good write up as ever...!

I've not played with Aldermogs brakes, but have stripped and worked on motorcycle brakes. A couple of comments from that experience.

1. The idea of pad retainers that are not positively fixed doesn't impress me one bit.

2. The springs should be changed whenever pads are changed: they are there for a reason - to keep the pad seated and stop it rising up - and they get weak with age. One reason the pads have a ridge on them is that the springs are not strong enough so they ride up under braking.

3. The pads are too large for the disk. There should never be wear as you example. If there is a ridge it should be on the disk, not the pad.

All this reinforces my belief that the stock front brakes are cheap and nasty. OK, I'm a bit obsessive about brakes, suspension and tyres, but that is the result of riding a bike from 1967...until 2013 without coming to grief.

All your post has done is convince me that Aldermog needs better brakes.


Peter,
Tarka the 'Otter Mog
2014 Plus 8


Re: The Kingpin Job - Autumn 2014 [Re: DaveW] #228400
14/10/14 09:04 AM
14/10/14 09:04 AM
Joined: Jan 2012
Posts: 72
Northants
J
Jethro Offline
Just Getting Started
Jethro  Offline
Just Getting Started
J

Joined: Jan 2012
Posts: 72
Northants
I am hoping to do this job over the winter, so the write-up is really useful, thanks


Jethro
Connaught Morgan 4/4, Norton Commando, Guzzi V35 Imola, Velocette LE, BMW C1, BMW C650 GT
Re: The Kingpin Job - Autumn 2014 [Re: DaveW] #228404
14/10/14 09:48 AM
14/10/14 09:48 AM
Joined: Aug 2008
Posts: 2,112
Powick
tmg513 Offline
Talk Morgan Expert
tmg513  Offline
Talk Morgan Expert

Joined: Aug 2008
Posts: 2,112
Powick
This is exactly what I do except for putting a jack under the kingpin to lower it which I find a lot quicker. I then use threaded rods to wind it back up afterwards.


1972 4/4 2 Seater
Re: The Kingpin Job - Autumn 2014 [Re: DaveW] #228405
14/10/14 10:14 AM
14/10/14 10:14 AM
Joined: Aug 2013
Posts: 2,492
Solihull
Spanner Juggler Offline
Talk Morgan Expert
Spanner Juggler  Offline
Talk Morgan Expert

Joined: Aug 2013
Posts: 2,492
Solihull
Or use the threaded bolt tool through the top bolt which is even quicker as its just one nut to wind up and down. Have used both methods several times and prefer the single bolt idea as its easier to align the dust shroud over the rising stub axle (getting the top bolt in means its all aligned)seen a few damaged dust shrouds through misalignment.


BR Colin
Who used to be a Spanner Juggler
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