Perkins 135 shutdown issue

[sorasora]

Hi guys,

I have a Perkins 135 Ranger 4 that will not shut down. Tried all the obvious things, pulling the manual shutoff at the injector pump, even had the injector pump rebuilt. Reinstalled everything, engine runs fine...but have the same problem. It will not shut down without air starvation.

Any ideas?
Terry

[Wotname]

Welcome aboard Terry, sorry to hear that your first post is one of engine problems .

While I can't help directly, is the engine shut down normally electric or manual?
This is a good starting point for further remote diagnostic help.

[Lepke]

If the manual shutoff doesn't stop the engine then either the shutoff is not stopping all fuel (see the rebuilder) or it's drawing oil past the rings or the valve guides. Sucking engine oil usually happens in worn engines. It's a dangerous condition because the engine could run away until it explodes.
The engine can't run on air alone. It has to have fuel of some kind. The most likely problem is the manual shutoff not working. I don't know your injector pump, but it may have a single shutoff valve that is controlled either by an electric solenoid or the manual lever. I'd start there.

[shakey doug]

Have you tried the STOP lever manually with either the solenoid or cable disconnected ?
If it is running on its own lube oil a massive amount of smoke would be produced.

[GordMay]

Greetings and welcome aboard the CF, Terry.

The Perkins M135 Marine diesel engine comes standard with an Electric Stop Solenoid.

If pressing the engine stop button does not stop the engine, your fuel solenoid may be frozen open, or the stop circuit may be faulty.

1. Check the fuel solenoid. If the piston plunger valve rack is extended, the solenoid is open and providing fuel. This is the “normal” un-energised position (energise to stop).
2. Jumper the solenoid terminal (S42, Grey /w Yellow stripe) to ground. The piston should retract, closing off fuel. Ensure that the piston (plunger rack) re-extends to the run position.
If not, tap gently to free it loose to close.
If not, replace solenoid.

It is very important to ensure that the piston is fully bottomed when final linkage is connected. If the solenoid is restricted from bottoming out in the retract/energized mode then it will burn out in approximately 30 seconds. Insufficient current will also result in failure.

TEST PROCEDURE TO DETERMINE PLUNGER HAS BOTTOMED:
On units with an auxiliary third terminal, connect a voltmeter or appropriate light (voltage rating) between auxiliary and "+" terminals. When the solenoid is energized and the piston bottoms (retracts), the voltmeter will indicate the battery voltage or the light is energized.

VISUAL METHOD:
Push the piston to the full bottomed (retracted) position and measure the plunger extension length from the solenoid body before the linkage is connected. Connect linkage and energize the solenoid. If the piston has fully bottomed, the piston extension lengths should be the same.
___________

[GordMay]

I should have noted, that the wire numbers/colours given in my previous post, were specific to a particular boat. I don’t have a scanner, so will try to get my grandson to upload my paper diagram, for reference.

See also Westerbeke’s Technical Service Bulletins, which will also apply to Perkins (more or less).

➥ https://www.westerbeke.com/service%2...tin/sb_127.pdf

➥ https://www.westerbeke.com/service%2...tin/sb_175.pdf

[reed1v]

Are you sure you do not have a manual fuel cut off? Obviously fuel is getting to the engine so it could be a variety of issues; however, with a manual cut out the engine will stop(assuming the cut out works).We had an inline fuel valve installed between the fuel pump and injectors, for each injector. The other way is to decompress every cylinder.

[undercutter]

Originally Posted by GordMay

Greetings and welcome aboard the CF, Terry.

The Perkins M135 Marine diesel engine comes standard with an Electric Stop Solenoid.

If pressing the engine stop button does not stop the engine, your fuel solenoid may be frozen open, or the stop circuit may be faulty.

1. Check the fuel solenoid. If the piston plunger valve rack is extended, the solenoid is open and providing fuel. This is the “normal” un-energised position (energise to stop).
2. Jumper the solenoid terminal (S42, Grey /w Yellow stripe) to ground. The piston should retract, closing off fuel. Ensure that the piston (plunger rack) re-extends to the run position.
If not, tap gently to free it loose to close.
If not, replace solenoid.

It is very important to ensure that the piston is fully bottomed when final linkage is connected. If the solenoid is restricted from bottoming out in the retract/energized mode then it will burn out in approximately 30 seconds. Insufficient current will also result in failure.

TEST PROCEDURE TO DETERMINE PLUNGER HAS BOTTOMED:
On units with an auxiliary third terminal, connect a voltmeter or appropriate light (voltage rating) between auxiliary and "+" terminals. When the solenoid is energized and the piston bottoms (retracts), the voltmeter will indicate the battery voltage or the light is energized.

VISUAL METHOD:
Push the piston to the full bottomed (retracted) position and measure the plunger extension length from the solenoid body before the linkage is connected. Connect linkage and energize the solenoid. If the piston has fully bottomed, the piston extension lengths should be the same.
___________

Where did you get this Gord? I have an M135 Perkins and this is definitely not the same as mine. There is only 1 + terminal and no external moving parts!! There is an external manual shutdown painted red which is not connected to any linkage and requires access to the engine compartment.

By the way for the OP, new injector pumps are available for the M135 from Perkins in the UK as I just installed one. Generally it is never worth rebuilding an injector pump from my experience of 30 years in the Railway construction business.

Sorry gord, just saw the Ranger in the original post. Different build configuration.

[Cadence]

Originally Posted by sorasora

Hi guys,

I have a Perkins 135 Ranger 4 that will not shut down. Tried all the obvious things, pulling the manual shutoff at the injector pump, even had the injector pump rebuilt. Reinstalled everything, engine runs fine...but have the same problem. It will not shut down without air starvation.

Any ideas?
Terry

I'm afraid you are running on sump oil. I feel sure some others will go into valve guides and piston rings. Best of luck.

[Wotname]

Originally Posted by Cadence

I'm afraid you are running on sump oil. I feel sure some others will go into valve guides and piston rings. Best of luck.

If it is, there should be plenty of smoke (as Shakey Doug points out) plus a lowering of the oil level in the sump. Both easy to confirm

[model 10]

How about a leaking fuel pump diaphragm? The engine breather system pumps the crankcase fumes into the intake. A little extra diesel vapor might keep it going a little longer than it should on shutdown. It would not be that surprising if your oil consumption matched a leaking fuel pump output. You might not see any change in oil level.

[Cadence]

Originally Posted by Wotname

If it is, there should be plenty of smoke (as Shakey Doug points out) plus a lowering of the oil level in the sump. Both easy to confirm

Yep! I was just pointing out something to look for. I hope it's wrong.

[captain mitch]

OK, I also have a Perkins based "RANGE 4 -135" and they do not come standard with a sol. (elect) shut down.
The manual shut down is on the back side of the Injector pump and can be operated easily if diconnected from the "pull to stop" cable.
If the engine were drawing from the crankcase it would be smoking and shaking like mad , AND is likely not to want to idle at all.
Best guess is a problem with the Inj. pump rebuild leaving the worn down shut-off stem in place.
If you have another way to shut off the fuel flow and THAT does stop the engine that will proof the issue to be the punp

[Crazer]

If it runs fine, I very much doubt it's running on oil. More likely the fuel is not being shut off. Probably worth chasing that first.