mountainguyed67
Senior Member
Any symptoms?
Changing fuel and air filters had little affect.
The pedal use to respond instantly.
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Any symptoms?
Sounds odd, is there a bad exhaust leak on one cylinder? I agree might be time to pull valve cover and see if there is something not right in there with the injectors. Forget if you mentioned what engine we are dealing with being a Terex I'm assuming Detroit a 71 or 53 series?
I've been busy trying to fix brakes on a Michigan in Minn! Along with some other machines.
Id think you will see the problem by popping off the valve cover. Ive had injectors stick before.
Actually if there is any clearance between an injector plunger and rocker arm there is a problem with the injector!The rack can stick and cause a runaway, but the plunger can stick down and cause a no-fuel condition on that one cylinder. The rocker arm will have gross clearance if that happens.
And I try to never say never because a machine will always slip one past you when you are not watching!
Guess I spent too much time with 12's and 16's is why I like to narrow it down to one cylinder, with a inline four there's not that many options.
So unless manifold is easier than V.C. I might reach of the V.C.
Actually if there is any clearance between an injector plunger and rocker arm there is a problem with the injector!
And I try to never say never because a machine will always slip one past you when you are not watching!