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Spitfire Carb Conundrum

JDub

Freshman Member
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Hey all,
While having recently purchased a '69 Mark III and thinking some new brake shoes would be job number 1 seems more like months than weeks ago, I continue down the carb conundrum - JETS!

I have SU H2s in there - rear Jet line was broken. Ordered new one, installed/snugged/did 12 flats. Cleaned out fuel pot too was gunky. I went to adjust the 'new' looking front jet to ~match~ and the assembly seized. New parts, 1 week later. Tried again - turns out the fancy new front jet was a mite too narrow for the jet bearing, wouldn't lock/adjust. Hmm. I had a spare new unlabeled Jet inherited in a box - it was about the same thickness as my rear jet and seemed to fit, so I installed it. Then we reattaching to front pot (also gunky which I cleaned) - no joy! Despite having the washer and nut, and believing I saw the O-ring in there, when I fired up the car it leaked like a seive. I tried reattaching but had to call quits - the fuel line from Jet to Fuel Pot seems too short and pointed away, too awkward to line up and snug proper methinks. SO - do I order yet another jet? Just the end bits and hope there's enough tip-in-the-pot?

Per the ID tags on my fuel pots - the Front is labeled AUD285 R (R usually means rear, no?). The rear tag reads AUD285 E.
I believe these are both AUC 1038 HS Type Carbs. SO - I am ferklempt, confused, flabberghasted! What do I have? Two matching carbs, both rears? Swapped tags? Covid? No idea what the AUD285E rear carb tag is supposed to mean.

I'm assuming that buying yet another jet from Moss Motors may cut the mustard, but then again, may not - please advise, corroborate, escoriate, anything!!

 
If you're reading this, you are ow in the Triumph forum. You posted your question in the Member Articles forum, which is not a place for asking questions, but rather that's for actual articles that mambers write. (like an article you miht find in a magazine).

I moved this post to the Triumph forum. Cheers.
 
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