Dear All
Just having fun stripping and cleaning my S1 SU carbs
Couple of things
1. Slow run valves: when I unscrewed them I found they had no brass washer or rubber washer fitted as described in the SU blurb. Are these essential? I’m thinking they probably are?
2. The jag parts handbook lists a large washer that sits at the base of the dashpot spring...I didn’t have these ...Again are they important and available?
3. The Centre carb choke mechanism has a double holed lever but mine is broken...it looks like there’s a pin you have to drive out to release it from the spindle to then be able to replace it..had anyone done this?
4. How much play is allowed in the butterfly valve spindle before resleeving..I have s minute amount only
Thanks
Robbie
Triple SU rebuild
#2 Re: Triple SU rebuild
All the parts are available from Burlen Fuel systems who remanufacture all the parts and will sell you a whole set of carbs for many beer tokens....get a list of bits you need and call them. They are helpful on the phone. Their website is www.burlen.co.uk
If you want original you can either trawl eBay etc or visit the the spares day in Stoneleigh in October where you might be able to pick up an original carb....pot luck.
If you want original you can either trawl eBay etc or visit the the spares day in Stoneleigh in October where you might be able to pick up an original carb....pot luck.
Julian the E-type man
1962 FHC
1966 MGB....fab little car too
1962 FHC
1966 MGB....fab little car too
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#3 Re: Triple SU rebuild
Our Knowledge Base has several SU guides and links. e.g:
SU Tuning Guide: https://www.dropbox.com/s/tc0k3pac07y3m ... 1.pdf?dl=1
SU Tuning Guide: https://www.dropbox.com/s/tc0k3pac07y3m ... 1.pdf?dl=1
David Jones
S1 OTS OSB; S1 FHC ODB
1997 Porsche 911 Guards Red
Add your E-Type to our World Map: http://forum.etypeuk.com/viewtopic.php?f=1&t=1810
S1 OTS OSB; S1 FHC ODB
1997 Porsche 911 Guards Red
Add your E-Type to our World Map: http://forum.etypeuk.com/viewtopic.php?f=1&t=1810
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#4 Re: Triple SU rebuild
I have just finished refurbing my SU’s, there should be a cone shaped brass washer between spring and O ring on the slow run valve. I had no large washer at the base of the dash pot spring and it’s not listed on Bulens parts list so I assumed it wasn’t required, I also had a small amount of spindle bush play, I replaced the Teflon bushes for new type bushes unfortunately you will have to machine the carb body’s for the replacement bushes, the small pin that holds the choke lever is tapered so make shure you drive it out the correct way. here’s a couple of pics of mine
Last edited by Julian.P on Sun Aug 19, 2018 8:09 pm, edited 1 time in total.
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#5 Re: Triple SU rebuild
Thank you both
I’ll check the SU website
There seems to be some debate over throttle spindle bushings..cork type, rubber or Teflon
I might give David Lonsdale a call
Regards
Robbie
I’ll check the SU website
There seems to be some debate over throttle spindle bushings..cork type, rubber or Teflon
I might give David Lonsdale a call
Regards
Robbie
Robbie 1962 3.8 Coupe OSG 1962 OTS ODG
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#6 Re: Triple SU rebuild
David is the SU Guru he will have answers to all your questions, Teflon are the old type bushes that are no longer available, Cork you mentioned are the seals they come as a kit from Bulen Fuel.
Julian.
Julian.
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#7 Re: Triple SU rebuild
1. Yes. Come in the refurb kit
2. Not seen these myself
braze a bit of material on the end and redrill the hole
If you have any discernible play just get all 3 of them rebushed.
2. Not seen these myself
braze a bit of material on the end and redrill the hole
If you have any discernible play just get all 3 of them rebushed.
Andrew.
881824, 1E21538. 889457. 1961 4.3l Mk2. 1975 XJS. 1962 MGB
http://www.projectetype.com/index.php/the-blog.html
Adelaide, Australia
881824, 1E21538. 889457. 1961 4.3l Mk2. 1975 XJS. 1962 MGB
http://www.projectetype.com/index.php/the-blog.html
Adelaide, Australia
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#8 Re: Triple SU rebuild
Thanks
Can anyone give any guidance as to the date stamp codes on the top of the flange
ie X1 or X4
I guess it’s a code for year/month?
Is there a table somewhere to assist with this?
Robbie
Can anyone give any guidance as to the date stamp codes on the top of the flange
ie X1 or X4
I guess it’s a code for year/month?
Is there a table somewhere to assist with this?
Robbie
Robbie 1962 3.8 Coupe OSG 1962 OTS ODG
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