mercedes 1983 300cd hesitTES LOSSES POWER AFTER WARMING UP?

Question

15 MIN DRIVING CAR BOGGS DOWN LOSING POWER

Answer 1

the valves may need to be adjusted the cold setting is 0.04" intake and 0.13" exhaust [suspect tight valves are not fully closing after engine starts to warm up] this will lead to burnt valves and expensive repair if not addressed. also in addition to A.W.B.T's answer there is a boost control solenoid in line w/ boost diaphragm that clogs up [they do not like to be cleaned and at retail is only about 70.00 dollars] one last note even if primary and secondary fuel filters are new you may still have a fuel starvation problem drain fuel tank into a safe container[no smoking or unshielded lamps] and remove large bung on fuel tank [where fuel supply line comes out] this will expose a coarse mesh filter screen that gets blocked with diesel algae- clean it with carb cleaner spray and compressed air and reinstall and use a bio-stat additive periodically to prevent recurrence, if this is blocked the primary and secondary filters must be replaced as well, unless they are brand spanking new. good luck hope these items help.

Answer 2

Errr..why do people post answers like that?.... Classic Diesel's don't have an electrical ignition system. Once a Diesel is started, you could stick a crowbar through the alternator and recycle the battery for all the difference it would make.

Try cleaning out the banjo fitting for your Alda, that often perks them up ( http://www.dieselgiant.com/mercedesaldaboostsystemservi.htm ). Another thing you should check is the crankcase ventilation tube. Over the years, this tube can become blocked with goop.Believe it or not, you can actually stall the motor by holding your thumb over the vent hole.

Answer 3

Had something like this happen to my W140 S350. Seems a few sensors in the system were clogged and would tell the turbo it was over boosting and to open the waste gate to relieve the pressure. It would work fine for the first few miles but as soon as it warmed up it was a slug. You need a good diesel man to run trouble shooting.

Answer 4

i in my view do no longer think of eating "breakfast" is considerable for weight help. eating a chew of fruit or a small salad could be a breakfast, or perhaps eating water with a banana. in my view, weight help is approximately eating the appropriate entire ingredients coupled with a superb volume of actual activitiy alongside with strolling or something extra strenuous.

Answer 5

Could be you need to do a few oil changes for clean up the motor, or the Turbo may be going bad(if it's a Turbo)

Answer 6

Fuel filters,and fuel screen in tank.Both easy fixes.Try running algae killer for marine diesels.hobbob,and anywhere are right too.These are all maint. items.

Answer 7

Please get your fuel pump calibrated,injector nozzles pressure tested.This could be one of the reasons to loose power.

Answer 8

could be the alternator.