Before it starts...
Check your carburettor: cracks?
![the mezack has broken down](bilder/ueb_gehriss_300.jpg)
It´s pointless sending me such bodies – the mezack has broken down.
![BFL cracks](bilder/daimler_risse_200.jpg)
IMPORTANT: Careful Packing and protection
![bad packing example](bilder/ueb_schl_verp_80.jpg)
See bad example
Before you send off your carbs, take a couple of shots with a digi-camera for your protection and to avoid possible, later misunderstandings.
Restoration sequence
Delivery
![Solex PAITA before Restoration](bilder/ueb_solexpaita_v_80.jpg)
HINT: Please ensure a safe transport by packing the system properly. A damaged carb is quite annoying. And you must drain off all oil and petrol. (otherwise I'll get earache from the postman...)
Chemical Cleaning
![Dry cleaning with special carb-cleaner](bilder/ueb_reinigen_80.jpg)
Checking every part
![Control of every single part](bilder/ueb_kontrolle_80.jpg)
- Bodies are checked for hairline cracks. Mezac (pressure-cast zinc) bodies can be aquipotential shielded-arc welded if damaged.
- Warning: Only after a succesful test can bodies be repair-welded!
- Damaged threads are helicoiled.
- Screws, levers, springs etc. are mechanically repaired, i.e. re-welded and fettled to original specification.
- Floats are checked for leakage. Damaged floats are replaced at extra cost.
- Electromagnetic and pneumatic valves are checked and painted or damaged ones are replaced at extra cost.
Mechanical Cleaning
![SU HD8 carbs were ultra-sonic cleaned](bilder/ueb_ultraschall_80.jpg)
Bright zinc-plated (extra costs - check pricelist)
![steelparts - before/after - cleaning, galvanising](bilder/ueb_stahlteile_80.jpg)
![smallparts galvanised](archiv/verz_kleinteile_80.jpg)
![tubes galvanised](archiv/verz_rohr_80.jpg)
![Jaguar MK2 linkage galvanised](archiv/verz_jaguar_mk2_ansteuerung_80.jpg)
![Spitfire linkages galvanised](archiv/verz_spitfire_ansteuerung_80.jpg)
Cast-iron butterfly-housings are black-bright zinc-plated after bead-blasting, to ensure permanent rust-protection. All ferrous parts are newly bright zinc-plated on option.
Actuating drives/shafts are overhauled (SU), excepting worn ball-heads, cups and fork ends. For an extra offer please contact or check the pricelist.
Skimming
![Skimming a surface firmly](bilder/ueb_schleifen_80.jpg)
New shafts and bushes
![1. shaft: heavy wear; 2.: new shaft; 3.: After fitting, polishing and hard-chrome plating](bilder/ueb_wellen_80.jpg)
new shaft;
polished and hard-chrome plated
To reduce wear in a markable way the shafts are highly polished and hard-chrome plated by which they are virtualy wear-free. There is also a very low friction rate due to the extremely hard, smooth surface, which, obviously leads to feather-light operation. This surface treatment is worldwide uniquely used only by BOB.
Assembly
![A small batch of PHH44 is assembled](bilder/ueb_solexphh44_80.jpg)
Missing parts are found or reproduced to pattern, generally by wire-spark erosion. Any worn ball-heads and cups are replaced.
Also complete linkages and spindles can be overhauled to ensure optimal synchronizing.
Proof of functions
![Is the fuel-level allright?](bilder/ueb_endkontrolle_80.jpg)
Some carburetters are gas-checked on a specialy built flow-bench. Maximum flow-rate is checked at 2,5 kg/h, air valve closed. Further the fuel-level, accelerater-pump injected amount (manufacturers specification) are checked. A tolerance of 0,5 kg/h is allowed between the throat on twin-choke carburetters.
STE flowmeters are recommended for synchronizing. (may be purchased from Viktor Günther)
Fine-tuning support
![jets and needles](bilder/ueb_duesen_80.jpg)
Through dialog with the experienced fitter who is setting up the system, I´ll find out which must be altered and I´ll send then, free of charge, replacements for the system.
Simply send back the old jets/needles. Please note that it might be the case that several jets must be tried out before things are perfect – as mentioned, no costs entail.
Result
![Solex PAITA reconditioned](bilder/ueb_solexpaita_n_80.jpg)
Final assembly and Note
Please remember even a freshly reconditioned carburetter that´s been correctly jetted, may have to be fine-tuned by a competent mechanic. Not all engines are the same and were standard parts used during the last engine overhaul? Generations of car mechanics have been working on your car - has anything been modified? Another distributor or similar? All these will affect smoothe engine running. If your German´s passable, read the reports in "Oldtimer Markt" under publications for valuable hints.
It's not always the carbs that cause rough-running. Correctly adjusted timing and dwell-angle, good compression and a mechanically sound engine are priorities to get them to run well. If you're a bit unsure, get a competant carb-specialist to inspect them before you take them off and send them to me. You could save yourself a lot of time, money and hassle. (The best test-bench for your carbs is your own engine...)
Δ Back to TopIt's not always the carbs that cause rough-running. Correctly adjusted timing and dwell-angle, good compression and a mechanically sound engine are priorities to get them to run well. If you're a bit unsure, get a competant carb-specialist to inspect them before you take them off and send them to me. You could save yourself a lot of time, money and hassle. (The best test-bench for your carbs is your own engine...)