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Tamd 71a

Jan68

New member
Got twin TAMD 71A's one is hitting 1500 revs turbo comes in, boosts up to 2000 revs and then drops off back to 1500.
Will rev up no problem when not in gear.
Tried the pump, tried the turbo, checked fuel, if anyone has any ideas please help
 
Got twin TAMD 71A's one is hitting 1500 revs turbo comes in, boosts up to 2000 revs and then drops off back to 1500.
Will rev up no problem when not in gear.
Tried the pump, tried the turbo, checked fuel, if anyone has any ideas please help

Hm, not many anwers om this.. Could be the "prevent smoke actuator" on injector pump not properly or leak plastic pipe connected to intake manifoil...???
 
I would put a boost gauge on the intake manifold and see if you are holding boost. It could be an intake leak that is blowing open when the boost climbs.
 
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