Peter Reeves27 May 2008 at 09:47 #47354
Hi All Im looking to replace my 3 ltr distributor cap and leads. any comments are most welcome and advice as to were to get the parts?
The advance and retard vacuum pipe is not connected to my 3 litre DB Lagonda?s distributor. I have conflicting reports as to.
It should connected.
It should not be connected?
Which is correct?
Peterjohn28 May 2008 at 21:28 #47357
Hi Peter , THe vaccum pipe to the distributor should not be connected. Distributor cap try HOLDENS Classic Parts ?95 JohnPeter Reeves28 May 2008 at 21:44 #47358
Hi John many thanks I will leave as is. Thanks
Peter 😉mjpetersP2426 July 2011 at 20:17 #48404
I realise this is a little late but I have just joined. I had a Lucas parts business till 1988 and have kept much documentation. For anyone searching for a cap at autojumbles etc., in the future, the following may help. Our distributors on the 2.6/3L ( either 40125A/D, 40125E/F or 40264A/B – all general model DVXH6A ) all used a 417178 cap.
Unfortunately Lucas produced this cap and two others with only a different orientation of cut-out for the LT terminal without any part numbers on them. To identify a 417178 hold the cap upside down with the coil lead outlet at 12o’clock, the LT terminal post cut-out should be at 2o’clock. (Use of the other caps, 415708 and 407279 result in the leads pointing the wrong way.) Not many other cars used “our” cap; Morris MS Six and maybe a Standard.
I have presumed that the searcher could distinguish this group of three from other caps. Can submit picture if needed? MartinPeter S3027 July 2011 at 07:03 #48405
I just bought one of these caps, here you can see an example http://www.holden.co.uk/displayproduct.asp?sg=1&pgCode=030&sgName=Electrical&pgName=Ignition&agCode=0382&agName=Distributor+Caps&pCode=417178
but I bought it from Martin Jay (distributordoctor.com) at slightly higher price (99 GBP plus VAT). He claims best quality, manufactured for him in England, it looks very good (smooth no scratches or holes from molding). I don?t know if the one from Holden is the same quality.mjpetersP2427 July 2011 at 08:29 #48406
A minor correction to my last entry – apologies – the cut-out in the cap is just to match the semi-circle at the top of the distributor body, not for the low tension terminal. That exits the distributor lower down ! MartinPhilip Stephens27 August 2011 at 19:46 #48476
Thankyou for the dizzy part numbers,
Thinking of putting an Electronic Distributor Conversion Kit in the car (the engine rebuild has worked!) for easier starting and better sparking of those 10 mm spark plugs
thus the part numbers are useful to get the right unit…….
regardsHermann Schaller6 May 2018 at 04:14 #52754
Did somebody changed the contacts to an electronic ignition? I looked up the Petronics kits, but it seems to have only a counter-clockwise version for our DB 3-Litre distributor.SRD7 May 2018 at 14:21 #52755
You are looking for a regular AM DB2/4 dizzy – Ignitor model for the VB6 engine
Original Lucas DVXH6A unit with part numbers 40484, 40125F, and 40264
If you go with one of these kits, check what is stamped on your dizzy.
A more sensible price for the same item is below There are plenty of other sources of course,
Don’t forget you will also need the flame thrower kt as well. These are both readily available, worth checking around for best price on the net.
A new set of points and fresh coil always works wonders of courseHermann Schaller7 May 2018 at 22:41 #52756
The number on the distributor reads:
Is that the same as the 40125F, you listed in your post?SRD9 May 2018 at 20:27 #52758
DVXH6A is the base unit with part numbers 40125E or F. These denote model year as 1956 or 1957.
This is a standard AM DB2/4 dizzy, very easy to obtain. best to hunt a little to get a good price and of course a flame thrower.
If you look back through the posts on 2.6/3.0 litre cars, I think your Portugal car has been mentioned before some years ago.
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