Bj73 3b cranking won't start (1 Viewer)

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

Joined
Aug 31, 2025
Threads
1
Messages
1
Location
New Zealand
Hi Guys I am reaching here as I'm a bit lost.

I have a 1986 3b-II BJ73 255,000ks

Just have problems with it cranking and won't start, need to put a little brake cleaner in the intake just to get it to fire, which is far from ideal

Just replaced glow computer, 15second glow, glow plugs all good, new primer and just replaced seals on diesel injection pump as was leaking diesel when cold

First thing in the morning it will just crank and crank and won't fire. Once started and warm it runs like a dream until the next morning when it is cold..

I'm so stumped
 
Either fuel is leaking down overnight or you don't have good glow.
Check your primer in the morning, an airtight system will have almost immediate pressure, a leaky system will require some priming.
As for the glow system, you could try unplugging the temp sensor for the glow system. My 3b would easily start to -20C.
 
Have you checked that you're getting voltage at the plugs?

Running a clear fuel hoae from filter to pump will let you see if fuel is draining overnight.

If it's a 1986 engine it won't be a 3Bii, not that it makes any difference to the issue.
 

Users who are viewing this thread

Back
Top Bottom