W108 inlet manifold?

[Kimon]

Hi, I've just bought a 1969 280s W108 and working on some carb issues. I,m curious about the balance weights sticking out of the inlet manifold which I can see are linked to some sort of flap assembly. See bottom right of attached image. The weights seem to be solid or ceased. Should they be easy to move and will this affect the running of the engine? Any advice appreciated.

 

[grober]

no photo appearing sorry

 

[grober]

Probably heat riser flaps allowing heat from the exhaust manifold to warm the inlet manifold to help fuel volatilisation in cold weather -normaly open when cold and closed at normal running temps. they are often seized- activated by bimetal strips --- if defective you want them shut by default

Exhaust Manifold valves - PeachParts Mercedes-Benz Forum

Hello all, new to this forum. Busy with full mechanical re-build of a 66 W108 250S. Great hobby car, as it is an early W108 so mechanically like a

www.peachparts.com

 

[grober]

link missed

INTAKE AND EXHAUST MANIFOLDS MERCEDES M 130 USA (130920)

Parts for unit INTAKE AND EXHAUST MANIFOLDS MERCEDES M 130 USA (130920)

www.ilcats.ru

 

[slade1]

W121 190 has the same system and they all rust. just forget them. properly tuned carbs/ignition the will always start unless it's about -20deg

 

[bismarck]

Hello Kimon.I have the same model car as you.Mine are seized closed.I have being told you dont need them unless you are in a really cold climate.If they are seized open they could effect the balancing of your Carbs.

 

[slade1]

Hopefully both seized in same position

 

[Kimon]

Hi, I've just bought a 1969 280s W108 and working on some carb issues. I,m curious about the balance weights sticking out of the inlet manifold which https://speedtest.vet/ https://vidmate.bid/ I can see are linked to some sort of flap assembly. See bottom right of attached image. The weights seem to be solid or ceased. Should they be easy to move and will this affect the running of the engine? Any advice appreciated.

thank you my issue has been solved