Needle for HIF44

Post by **Peetee** » Thu Oct 09, 2008 7:35 am

Is this the sort of needle I need?

http://cgi.ebay.co.uk/CARBURETTOR-NEEDL ... 286.c0.m14

Post by **mike.perry** » Thu Oct 09, 2008 2:47 pm

You don't say what engine or carb you are using.
The AAD needle is a .090" spring loaded needle which could be used on a range of carbs including an SU HS2, 4 , HIF 38 or HIF 4.
According to my reference book there seems to be an error. The AAD needle is listed as part no. CUD 1003 and CUD 1027 is an ABD needle.
CUD 027, ABD was used on a HIF 4 carb on a USA spec MGB.
Let me know what engine and carb you are using and I should be able to find the correct needle.

Post by **Peetee** » Thu Oct 09, 2008 2:53 pm

Sorry should have been more specific. It's not the profile I'm asking about.
My understanding is that the needles are of two designs. One fits the HS type the other HIF's.

Post by **bmcecosse** » Thu Oct 09, 2008 3:19 pm

It's the later swing needle for an HIF38 - but too small for an HIF44 which needs a similar looking needle - but in the Bxx series.

Post by **mike.perry** » Thu Oct 09, 2008 3:25 pm

It doesn't seem to work like that. I can do no better than to refer you to the SU Reference Catalogue and SU Needle Profile Charts available from Burlen Fuel Systems, tel 01722 412500.
The HIF 38 takes a .090" spring loaded needle and the HIF 44 takes a .100" spring loaded needle.

Post by **bmcecosse** » Thu Oct 09, 2008 4:37 pm

In fact -you can remove the little collar from the 'swing' needle - to reveal an old style needle for use in early carbs !

Post by **Peetee** » Thu Oct 09, 2008 7:01 pm

Cheers Roy.

Post by **mike.perry** » Thu Oct 09, 2008 9:55 pm

However you still need to identify the needle profile for its suitability for a particular application.

Post by **Peetee** » Fri Oct 10, 2008 8:18 am

Cheers Mike - I have Win SU.

Post by **bmcecosse** » Fri Oct 10, 2008 4:40 pm

Which you can do by looking up the profile on the internet from the marking on the needle. Several sites - some allow direct comparison. Generally for an A series engine on an HIF 38 the AAA needle is a fair starting point.

Post by **Matt** » Fri Oct 10, 2008 10:28 pm

Pete has a 1275 and a hif44 ;)

Post by **bmcecosse** » Fri Oct 10, 2008 10:35 pm

BDL then I think!

Post by **mike.perry** » Sun Oct 12, 2008 10:03 am

The 1275 Ital engine with an HIF 44 carb uses a BER needle and the 1275 MG and VDP Metro engines use a BDL needle.
Every 1275 engine seems to use a different needle so just take your pick.

Post by **Peetee** » Sun Oct 12, 2008 10:31 am

OK guys. That should do me. Albert certainly goes very well at the mo. The only thing is that despite spending large amounts of effort in getting the mixture right so he does go well, he also seems to require very little choke so I suspect the jet and needle are worn a bit. Hence the original query.

Post by **bmcecosse** » Sun Oct 12, 2008 12:28 pm

VDP engine is same as MG engine - hence the BDL is the usual first needle to try for any modified 1275 engine.

Post by **millerman** » Wed May 13, 2009 2:52 pm

I have discovered this site http://www.mintylamb.co.uk/suneedle/ which is excellent for comparing SU carb needle profiles.

I have an HIF 44 fitted to my 1275 engine with a BGW needle, unfortunately mintylamb does not include that one fo comparison on the graph so, can anyone provide or guide me to the BGW profile

Thanks all

Post by **bmcecosse** » Wed May 13, 2009 6:01 pm

Can't find BGW either - sure it's not BCW ? - which is a very weak needle !