su jet

Discuss mechanical problems here.
Forum rules
By using this site, you agree to our rules. Please see: Terms of Use
Post Reply
mikeysmorris
Minor Fan
Posts: 127
Joined: Fri Nov 13, 2009 12:46 pm
Location: thurso,caithness,scotland (the very top of scotland)
MMOC Member: No

su jet

Post by mikeysmorris »

Hi all, found this jet in some spares i got with molly, my question is will it fit and work correctly in the carb on the car, the reason i ask is the colour difference this one is a red plastic part number gsu 426 one and the on on molly is black with no numbers that i can see, thanks for any info regards Mikey.[frame]Image[/frame]
my morris molly
brucek
Minor Addict
Posts: 941
Joined: Fri Sep 09, 2011 8:10 am
Location: Lincoln
MMOC Member: No

Re: su jet

Post by brucek »

Really depends which carb you have on the car!

GSU426 appears to be for an SU HS4 1.5 inch carb. I guess if you are running a standard SU HS2 - 1.25" (as fitted to the 948/1098 Minor) then it probably will not work without many other mods. HS4's were used on 1500 midgets, spitfires and others.

This mini spares website lists the part number on p37 of the downloadable pdf of their catalogue.

http://www.mrmini.com/catalogue/rad_fultnk_carb.PDF

Many folks do upgrade to the larger carb although the SU HIF 38 for 1098 and HIF 44 for 1275 are popular now. Some prefer the older HS4's or even HS6's - it's really just a matter of choice and preference.

Alec
Minor Legend
Posts: 2148
Joined: Thu Apr 15, 2004 7:29 am
Location: Oswestry, Shropshire
MMOC Member: No

Re: su jet

Post by Alec »

Hello Mikey,

it is the right size for a HS2 (.090"), but the black plastic jet is for a semi downdraught layout and the red plastic for a horizontal layout. Just compare the two to see if you can see what the difference is?

Alec
bmcecosse
Minor Maniac
Posts: 46561
Joined: Wed Feb 16, 2005 11:24 pm
Location: ML9
MMOC Member: No

Re: su jet

Post by bmcecosse »

Only likely difference can be in the length of the flexi feed pipe? Would be interesting if you can get the two jets side by side and tell what you find.
ImageImage
Image
mikeysmorris
Minor Fan
Posts: 127
Joined: Fri Nov 13, 2009 12:46 pm
Location: thurso,caithness,scotland (the very top of scotland)
MMOC Member: No

Re: su jet

Post by mikeysmorris »

Hi all, they are different they are handed so it wont fit molly, the choke lever bar mounts on the opposite side to the one on molly, also you are right bmc the feed pipe is a little shorter on the red one, any ideas what carb it would fit also if anyone needs it let me know, its of no use to me and it can go for the price of postage, regards Mikey.[frame]Image[/frame]
my morris molly
bmcecosse
Minor Maniac
Posts: 46561
Joined: Wed Feb 16, 2005 11:24 pm
Location: ML9
MMOC Member: No

Re: su jet

Post by bmcecosse »

Well done for getting that picture up! I hadn't thought about the choke lever connection..
ImageImage
Image
Post Reply