The Triumph Dolomite Club - Discussion Forum

The Number One Club for owners of Triumph's range of small saloons from the 1960s and 1970s.
It is currently Mon Aug 20, 2018 8:22 am

All times are UTC




Post new topic  Reply to topic  [ 6 posts ] 
Author Message
 Post subject: Dellorto 45s
PostPosted: Sat Jun 09, 2018 10:35 pm 
Offline
TDC Member

Joined: Sun Jul 08, 2012 7:22 pm
Posts: 128
Does anyone know of an easy to understand step by step guide to setting up these carbs on a sprint? Car is running very rough.
Petrol started dripping out of the rear carb today, via the trumpet, then stopped, then started again when engine was running, smelt very rich too.
What pressure should the fuel be?

Chris.


Top
   
 Post subject: Re: Dellorto 45s
PostPosted: Mon Jun 11, 2018 12:03 pm 
Offline
TDC Member

Joined: Sun Mar 16, 2008 2:52 pm
Posts: 1946
Hi Chris, I have the Dellortos on the Lotus. Assuming all the jets are clean and the float valve has the correct clearance to the cover ( with the gasket fitted ) and the float valves themselves are good, I use a Gunson's carb; balancer to initially set the throttles ( I do like the clever differential linkage ) then I Colourtune pots 1 and 4; then reset the "suck" at the trumpets.
That seems to work well for me.
Dellorto used to do a very useful booklet on dismantling, re-assembly and setting up . I can't see it listed on their web-site any longer though. The two manuals they still do are about 2/3 the way down on the home page.

https://www.dellorto.co.uk/

I'll have another look for it later.
Tony.


Top
   
 Post subject: Re: Dellorto 45s
PostPosted: Mon Jun 11, 2018 5:00 pm 
Offline
TDC Member
User avatar

Joined: Mon Jan 22, 2007 12:57 am
Posts: 246
Location: Augusta, GA, USA
Hi Chris,

I found this book to be very useful and a very straightforward guide to refurbishing and setting up these carbs.

https://www.amazon.co.uk/Build-Power-De ... r+dellorto

I had the same problem with fuel dripping out of the rear carb when I put them back on a couple of weeks ago after a rebuild. There was an air leak as I hadn't tightened up the mounting to the manifold enough.

I'm running 45DHLAs with a road camshaft (TT10104). I can send you the specs later if it would help. Gives you something to start from.

Andrew


Top
   
 Post subject: Re: Dellorto 45s
PostPosted: Mon Jun 11, 2018 5:26 pm 
Offline
Future Club member hopefully!
Future Club member hopefully!

Joined: Wed Nov 25, 2009 3:59 pm
Posts: 253
This may help.

https://www.waterstones.com/book/how-to ... 1903706756

_________________
Currently over 35 years worth of fixing 35 boxes.
Hoping to reach 65 years worth of fixing 65 boxes.


Top
   
 Post subject: Re: Dellorto 45s
PostPosted: Mon Jun 11, 2018 8:48 pm 
Offline
TDC Member

Joined: Sun Jul 08, 2012 7:22 pm
Posts: 128
Quote:
Hi Chris,

I found this book to be very useful and a very straightforward guide to refurbishing and setting up these carbs.

https://www.amazon.co.uk/Build-Power-De ... r+dellorto

I had the same problem with fuel dripping out of the rear carb when I put them back on a couple of weeks ago after a rebuild. There was an air leak as I hadn't tightened up the mounting to the manifold enough.

I'm running 45DHLAs with a road camshaft (TT10104). I can send you the specs later if it would help. Gives you something to start from.



Andrew
Thanks Andrew, that would be great. I did check the fuel level today in the float chambers, probably a millimetre or so out, but I did notice one carb has 7 gram floats, the other 10 grams.

As far as I know everything is tight, but the back carb had quite an amount of fuel pouring out.

Chris.


Top
   
 Post subject: Re: Dellorto 45s
PostPosted: Mon Jun 11, 2018 8:50 pm 
Offline
TDC Member

Joined: Sun Jul 08, 2012 7:22 pm
Posts: 128
Thanks also to you both on the recommendation of the book, on the case.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 6 posts ] 

All times are UTC


Who is online

Users browsing this forum: going_downhill and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Limited