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How do you time the injector pump when the chain breaks and all marks are off there are no alignment marks for the pump.
 

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: How do you time the injector pump when the chain breaks and all marks are off there are no alignment marks for the pump.<p>Good luck. There is a screw in plug on the side of the injection pump(driver's side) remove the plug and install the special MB timing light tool.<br>Time the crank and cam and then the pump. I don't know the specs but your local dealer should have all the info you need.<br>
 

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Re: Re: 87 300td pump timing

Plug on side? Special timing light tool? Never heard of such a thing.<br> <br> Here's how you reinstall chain and time pump:<br> <br> Put mark on crankshaft balancer at TDC. Put camshaft washer notch adjacent to mark on front cam bearing stand. Install chain, then tensioner. With the above marks set, chain in proper place, and tensioner installed, then move the mark on the crankshaft damper to 24 degrees BTDC. Now remove the injection pump and look at the splined gear on the front of pump. There is a notch in the splines and a mark in the pump body. Align the notch and mark on the injection pump and install pump. This completes the initial timing step.<br> <br> To do the final timing you will need a drip tube. You can get this from your dealer and it is inexpensive. With the injection pump to injector tubes removed, remove the number one (front)fitting from the injection pump and temporarily remove the little pointed shaped check valve from below the fitting. Screw the fitting back in place and install the drip tube. pump the hand pump several strokes to build pressure. With the injection bolts barely snug, turn the injection pump until you have one drip per second coming from the drip tube. You may have to pump the hand pump several times during this step of the process. Once you have found the one drip per second point, tighten the injection pump bolts. Now reinstall the check valve and the injector tubes (I call these the 'spider').<br> <br> To start the engine, pump the hand pump until you hear a hissing at the top of the main fuel filter. Then crack open the lines for a few seconds each at the injectors one at a time while someone cranks the engine. This will bleed the lines and help start the engine quicker.<br> <br> Hope this helps and good luck,<br> Larry
 

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Re: Re: 87 300td pump timing

Plug on side? Special timing light tool? Never heard of such a thing.<br> <br> Here's how you reinstall chain and time pump:<br> <br> Put mark on crankshaft balancer at TDC. Put camshaft washer notch adjacent to mark on front cam bearing stand. Install chain, then tensioner. With the above marks set, chain in proper place, and tensioner installed, then move the mark on the crankshaft damper to 24 degrees BTDC. Now remove the injection pump and look at the splined gear on the front of pump. There is a notch in the splines and a mark in the pump body. Align the notch and mark on the injection pump and install pump. This completes the initial timing step.<br> <br> To do the final timing you will need a drip tube. You can get this from your dealer and it is inexpensive. With the injection pump to injector tubes removed, remove the number one (front)fitting from the injection pump and temporarily remove the little pointed shaped check valve from below the fitting. Screw the fitting back in place and install the drip tube. pump the hand pump several strokes to build pressure. With the injection bolts barely snug, turn the injection pump until you have one drip per second coming from the drip tube. You may have to pump the hand pump several times during this step of the process. Once you have found the one drip per second point, tighten the injection pump bolts. Now reinstall the check valve and the injector tubes (I call these the 'spider').<br> <br> To start the engine, pump the hand pump until you hear a hissing at the top of the main fuel filter. Then crack open the lines for a few seconds each at the injectors one at a time while someone cranks the engine. This will bleed the lines and help start the engine quicker.<br> <br> Hope this helps and good luck,<br> Larry
 
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