Stromberg Rebuild
Posted: Sun Jan 21, 2018 2:51 pm
Finally had some time yesterday to begin sorting bits and pieces for projects over the next months, and though front anti-sway bushes are next (likely followed by trunnion), one goal of mine is to learn about carbs (never messed with them at any significant level). To that end, I've been collecting spares to experiment with including a pair (unsure whether matching) I got a while ago that had the good luck of coming with a high balance bar intake manifold. My 69 S4 originally had the federal emissions setup, removed by the PO and replaced with a low balance bar setup when he rebuilt the engine about 15 years ago.
The current setup is running fairly well, but given the time since the carbs were last rebuilt it is time for a refresh - so my plan is to rebuild the spare set and do a straight swap. If I screw up, I swap back, so no real downside risk or time pressures. If I get it right, I clean up the current set and prep and store for the future. Mainly I want to learn about rebuilding and setting up the carbs so I can diagnose and resolve problems as they, inevitably, arise - and I would appreciate any wisdom or guidance you can offer.
First - is there any way for me to confirm they are actually matching specs? Identifying markings or serial numbers I should note? Does it matter, since I'm rebuilding to a single spec?
After reading through all of the threads here I could find along with the buckeye triumph articles and burlen site, I'm developing a plan and would value your input:
1 - rebuild to carburettor spec 3296 - this looks to be right for non-emission strombergs for 69 - ordering rebuild kit cdrk68 from burlen - does this kit include diaphragms?
2 - B1Y fixed needles
3 - fixed jets B21582/100
What else am I missing? Any special tools or tricks of the trade I should know? Other needs relative to assembly and mounting of the manifold, balance bar, etc.?
Once I get initial parts and start disassembly I'll plan to update this thread with pictures and questions.
Thanks in advance for your tutelage.
Henry
The current setup is running fairly well, but given the time since the carbs were last rebuilt it is time for a refresh - so my plan is to rebuild the spare set and do a straight swap. If I screw up, I swap back, so no real downside risk or time pressures. If I get it right, I clean up the current set and prep and store for the future. Mainly I want to learn about rebuilding and setting up the carbs so I can diagnose and resolve problems as they, inevitably, arise - and I would appreciate any wisdom or guidance you can offer.
First - is there any way for me to confirm they are actually matching specs? Identifying markings or serial numbers I should note? Does it matter, since I'm rebuilding to a single spec?
After reading through all of the threads here I could find along with the buckeye triumph articles and burlen site, I'm developing a plan and would value your input:
1 - rebuild to carburettor spec 3296 - this looks to be right for non-emission strombergs for 69 - ordering rebuild kit cdrk68 from burlen - does this kit include diaphragms?
2 - B1Y fixed needles
3 - fixed jets B21582/100
What else am I missing? Any special tools or tricks of the trade I should know? Other needs relative to assembly and mounting of the manifold, balance bar, etc.?
Once I get initial parts and start disassembly I'll plan to update this thread with pictures and questions.
Thanks in advance for your tutelage.
Henry