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Discussion Starter · #1 ·
so i got this 122S about 3 months ago and im planning on doing a restoration on it. Ive been driving it to school and work and such but nothing too hard, but ive been having a oil leak on what it seems to be the crankshaft seal or main valve cover seal but the mechanic who ive been working with doesnt really have and idea what kind of seal it is or what we need to look for so any help on that would be nice. also ive been having trouble with the original duel carbs and i dont know if i should just get a new more efficient one or rebuild the old ones. also i am getting this awful smell which smells like the clutch but it happens all the time and i make sure not too ride it. any help would be nice.
 

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Come on over to the RWD Amazon (122) forum! We'll be glad to help.
 

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so i got this 122S about 3 months ago and im planning on doing a restoration on it. Ive been driving it to school and work and such but nothing too hard, but ive been having a oil leak on what it seems to be the crankshaft seal or main valve cover seal but the mechanic who ive been working with doesnt really have and idea what kind of seal it is or what we need to look for so any help on that would be nice. also ive been having trouble with the original duel carbs and i dont know if i should just get a new more efficient one or rebuild the old ones. also i am getting this awful smell which smells like the clutch but it happens all the time and i make sure not too ride it. any help would be nice.
Welcome to Swedespeed, Tyler.

I moved your thread here so Lloyd can fix your rear crank seal oil leak causing the oil to burn off on the slipping clutch aggravating the already poor driveability causes by the dual SU carbs having worn throttle shafts, etc.

Now that we are in the 122 forum check out some of the recent threads for carb fixes, restoration, etc.

Also, look through all these links when you are having trouble sleeping...

http://forums.swedespeed.com/showth...2)-history-from-1957-to-1970-(and-other-links).

Are you active on other Volvo forums.

Thanks.

George Dill
 

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Mine was just leaking oil from that same area. I'm pretty sure it was actually the front part of the head gasket. I ended up replacing the head gasket, timing cover gasket, crankshaft seal, and some various other unrelated seals as well and there is no leak anymore. There was a guy over on TB talking about having the same leak on a B20 so I'm beginning to wonder if it's a common problem for redblocks or something. Maybe just a common problem for 45 year old cars!

As for the carb problems, I've had about everything that an SU can do wrong happen. I finally just rebuilt both of them and put new needles and jet bearings in them. Describe your symptoms and someone here should be able to provide some insight. I like the SU setup (much better than a Stromberg, at least). You should definitely be able to fix whatever might be wrong with them instead of getting a new setup. Parts are still pretty available, some straight from SU in England.
 

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Welcome to the forums, Tyler! I just wanted to pass this along, because some folks have recommended their work: http://www.ztherapy.com/

It's a Datsun Z-car specialist mostly, but they use a license-built version of the SU carbs in your car. They work on an exchange basis, so it's $630/pair plus a core charge, which is refunded when they get the old ones. No affiliation with them and I've never had them do mine, but I was thinking about it if it turns out my throttle shafts are loose (I need to get the car back on the road to figure that out). They're in Portland so the shipping shouldn't be awful from Idaho. There's also a guy in NY who rebuilds them by mail, not an exchange basis. You might have a local specialist who could rebuild them, but all the shops in Seattle send their SUs out to Z-Therapy.

It's expensive, but my understanding is you get carbs that are pretty much new. Rebuild kits are also available if you want to do it yourself for a lot less.
 

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No affiliation with them and I've never had them do mine, but I was thinking about it if it turns out my throttle shafts are loose (I need to get the car back on the road to figure that out).
I'm pretty sure you can have bushings pressed in if your throttle shafts are worn. I think Joe Curto does that if you can't find anyone else but that would probably cost about a tenth of the price of brand new SU's. Google his name and check it out. I got my needles from him.
 

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Yeah Joe does them, it's not too expensive. It's $125/pair currently. If I'm pulling them off and sending them out to get worked on though, I might just want a total rebuild. I'm not there yet, but in case anyone's interested, Joe does HS6 rebuilds for about $450/pair, and the rebushing would be an additional $125. His site is here: http://www.joecurto.com/

He doesn't do an exchange, this is a rebuild of your exisiting carbs.
 

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Wow I didn't even realize it was that high. I guess I'm pretty lucky to have played music with a guy who does classic Euro restoration for a living. I got my carbs completely rebuilt and my entire front end refreshed including ball joints, all bushings, endlinks, tie rods, and springs for about $400.

Sent from my BlackBerry using Tapatalk.
 

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Curto's SU rebuild

Yeah Joe does them, it's not too expensive. It's $125/pair currently. If I'm pulling them off and sending them out to get worked on though, I might just want a total rebuild. I'm not there yet, but in case anyone's interested, Joe does HS6 rebuilds for about $450/pair, and the rebushing would be an additional $125. His site is here: http://www.joecurto.com/

He doesn't do an exchange, this is a rebuild of your exisiting carbs.
I brought Joe my stripped bodies and watched him do the work. He didn't re-bush. He reamed them out to next larger size and used slightly larger diameter shafts. I'm not saying he can't/doesn't re-bush - maybe he does. A great Volvo buddy, Kevin Higgins (Knights of the Round Fender), who was working there at the time and has now passed, got me in on short notice and so Joe did the work while I waited. I think he can do this in his sleep.

Strong memory of 5 gallon mud buckets in the corner FULL of used brass carb parts. Impressive.
 

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Joe Curto is probably cheaper and very expert. Bob Johnson in nearby Claremore, Oklahoma has taken over Jim Taylor's carb rebuild since Jim died and I imagine his prices are reasonable also. You need to consider international shipping with SUCARBS.com but their work is as good as it gets. I think Tom Bryant in Maine is still doing them also. Bob Johnson's phone is (918) 850-3905.
 

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Discussion Starter · #12 ·
so after changing various seals around the front crank and the headgasket seal the leak went away. as for the carbs i think ill just rebuild them, is there any guides or such that i should find and any specific rebuild kit i should get? also is there anywhere that sells air filters arnt as expensive as 74$each or 120$ each?
 

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so after changing various seals around the front crank and the headgasket seal the leak went away. as for the carbs i think ill just rebuild them, is there any guides or such that i should find and any specific rebuild kit i should get? also is there anywhere that sells air filters arnt as expensive as 74$each or 120$ each?
Good work, Tyler.

SU rebuild kit - this depends on how far you want to take the rebuild. If you decide to replace the throttle shafts you will need the full kit.

If you are uncertain on the SU rebuild and have other reliable transportation remove and inspect the carbs then order parts accordingly.

As to air filters for the SU HS6 carb (both 2 and 3 bolt) many folks are cutting up an old set but saving the front and back and hardware then sourcing a cheapo throw-away round paper filter to fit.

You can also do this with a round washable insert filter.

Looking here...

http://volvo1800pictures.com/sweden/Volvo_1800_dokumentation_main_page_en.php

...we see many docs that apply to your '66 Amazon as the P1800 has common components including B18 engine...

http://volvo1800pictures.com/sweden/Volvo_1800_dokumentation_main_page_en.php

...as in your 122 to include SU HS6 service and maintenance with pictures and in English.

Be sure to save a copy once the downloads are complete.

Here is a handy SU booklet...

http://www.bmcno.org/manuals/Tuning SU Carburetters.pdf

...with 49 pages of priceless pics and info specifically on the SU HS6 twin carb setup.

Again, save a copy on your system.

Once you decide how extensive you will get with the carbs rebuild and air filter search let us know and we will link you to the stuff you need.

George Dill
 

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If you want washable, "million mile" K&N filters, find the part number for air filters that fit '70 Datsun Zs. They had the same HS6 carburetors. Then search the K&N part number on Ebay or Amazon for cheaper prices than Advance Auto Farts. I got both of mine for around $120. Seems high but remember, they're washable and reusable.

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