Diesel I.P. Delivery Valve Removal and Replacement - Reseal Kit Available

Applies to 1977 to 1985 4 and 5 cylinder diesel engines for the U.S. market. Why remove them? Why replace the copper sealing rings? Link to purchase kit: mercedessource.com/store/1977...

[@keving8026]

Thank you Kent, from Canada

[@Mercedessource]

You are very welcome

[@timothykidd1744]

my son bought a non running w 123 1981 model 300d i new nothing about Mercedes or diesel i am proud to say thanks to you i now have some knowledge an i am not afraid to work on it.

[@johnwight6041]

Mercedes Source is the best! Love you guys

[@michaelcook7090]

Sold my 85 dt before I found your channel, Kent. Watching your vidoes has given me the old car itch again! Thanks

[@Mercedessource]

That's awesome

[@vancity01]

I took my delivery valves out and cleaned them and now my cars idles really good

[@Mercedessource]

Good work!

[@Engineerd3d]

Very reasonable cost. Not a bad way to go about this.

[@light12a]

Any idea how air could get into an injection pump though the delivery valves? I am chasing an air infiltration situation and wondering if the o-rings of the injector barrel could be at fault. No fuel leaks at all either.

[@karlisbaumanis6549]

Hey Kent, I've got a 1979 300d manual that has some issues with shaking when letting off and giving it gas, the car just sputters for a second or 2 before picking up speed. Was told by mechanics that its a IP problem. What should I look at first?

[@Mercedessource]

I would do a diesel purge on the engine and then change all the fuel filters (including the one in the fuel tank) before doing anything else.

[@vintage76vipergreenBeetle]

👍

[@sdasdona]

Ken, love your videos! I have discovered a approx 1964 OM621 190Dc vehicle and taken the engine out. It has been sitting for 30 years! I noticed you do not have many videos on these old engines. My question is the injection pump appears to have a resevoir for oil? Should it be changed and what kind of oil would be best? Thanks Uriah the Dakotan

[@Mercedessource]

Yes it should be changed. You can find lots of information on the subject by doing some deep dive internet searches.