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timing

J

JOHN in PENNSYLVANIA

Member
The follow up to my original posting yesterday. I have
removed the front cover exposing the injection pump gear to
check the timing works. They are not even close. I rotated
engine by hand multiple times to see if they would line up
they do not. But the tractor will start just smoking badly. Am
I missing something here with the timing marks???? The next
reply posting to mine has a picture of what I'm looking at.
 
I am not the real expert on the 154's but i do know this that the only time that you get all the timing marks lined up is when you first put the engine together . after that it is hit and miss.
 
Hi John, we bought a B414D with BD-154, new in May of 1962 and in August while baling with it, the engine sort of back fired thru the air cleaner and stopped and would not start again. Fortunately it was still under warranty and IH took it back to the shop and found engine had been put together without key in camshaft gear causing valves to become out of time with crankshaft. IH replaced pistons, rods, valves and push rods.

In your case, I don't believe pump and engine are much out of time or it would be very difficult to start. The good thing about BD-154 is it has glow plugs, so you can remove glow plug from #1 cylinder and determine compression stroke on #1 and valve closing timing. Probably you can do the soda straw thru the glow plug hole to determine TDC for #1.

I still believe the smoking problem is a too much fuel being delivered to the cylinders. You are certain the fuel return is working properly from the injectors and the pump?

JimB
 
You can see the fuel squirting into the fuel tank while the engine is running. I cracked the return line on the pump and fuel flows out of it profusely. Anything else you think I should take a look at before I pull the injectors and pump? I have an extra cav pump that i bought off ebay for 10 dollars. I got it just for parts. I opened it up and looked inside.... there's a lot of stuff in there
 
Hi John,
DO THIS AT YOUR OWN RISK,

Neighbour had a MF135 same CAV pump as BD-154 and it would not start. Neighbor was retired farmer and only used MF135 to plow garden and snow in winter, rest of the time it was in the garage.
MF mechanic came out and gave the pump a good rap with a hammer on the end of the pump were the inlet pipe is. Tractor started and it is still running today as my cousin bought it at neighbour's estate sale. Mechanic said metering valve likes to stick when tractor is not run very often.

JimB
 
Being aluminum cap I'm not going to hit on it with a hammer. But it's funny you say that the old injection pump I bought for parts the metering valve is stuck in it is well. I will open the top of the pump and look inside and take a look I've already opened the side cover..... everything seems okay there
 
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