Re: help with bd154 fuel injector pump adjustment

Posted by jimb2 on August 08, 2015 at 12:49:40 from (67.193.203.66):

In Reply to: help with bd154 fuel injector pump adjustment posted by bobby69 on August 08, 2015 at 08:44:21:

Hi, here are some posts from previous dates:
I also just rebuilt a BD154. I might note that the timing gear marks can be a bit deceiving due to the idler between the crank
gear and the injection pump drive gear. Mine runs really nice. Fires right up after using the glow plugs when cold, but after
she is warm, it takes right off.

Been a while since I've timed a CAV/Lucas injection pump, bear with me. If you pull the rectangular cover off the side of the
pump (held on with 2 small bolts) you will see the side of the cam ring. It will have a scribe mark on it the you can see move
in the window as you turn the pump driveshaft. When that scribe mark lines up with the square end of the snapring holding the
cam ring in the pump body, the pump will be at start of injection. You need to know the static timing mark used for setting
start of injection, usually either marked on the flywheel or front pulley, not sure on a 414, but on many engine it is right at
TDC. Rotate the crankshaft in the direction of engine rotation, (to take up any lash in the timing gears) until the engine
timing marks line up, with #1 cylinder on top of compression stroke. At that point match the marks in the pump and lock her down
to the front plate. Turn the crankshaft back 45 degrees and bring it forward again and recheck both sets of marks. Readjust if
needed, reinstall window cover plate and bleed pump. Guessing on fuel pump timing and getting too much advance can be fatal to
the engine if it is expected to work hard. I refuse to use the external scribe marks on the pump and front front cover, seen
them out by over 1/8 inch on a regular basis. Hope this helps.

B-275

Timing marks are on the flywheel and clutch-housing cover. You have to take the dust shield off to see them. Set at TDC for #1
cylinder. If the CAV rotary pump is original - there is a scribe-line on the front mounting-flange that get lines up with mark
on the engine. There is also a scribed line on the injection-pump rotor that you can't see unless you take of the timing window
from the pump.

Pump has a 3 bolt drive hub with a pin in the drive gear that enters the drive hub groove for proper timing. Pump also has a
scribe line on one flange ear that aligns with the scribe line on timing gear case. Don't need to time this one to remove and
replace the pump. Only way to get it way off is if the gear is installed wrong.

Hope this helps
JimB

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