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Engine won't start after touching injectors pressure pipes

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Old Jul 15th, 2020, 17:59   #11
NB10
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Originally Posted by dingov70 View Post
Morning the most likely cause of your diesel smell is all the diesel down the injector bore getting hot & fuming off .

I always treat injector yokes & bolts as one use items , remove & throw away as many are torque / turn by degrees to yield point . This stretches the bolts to their elastic point & they deform . Reusing them can lead to less than ideal clamping pressure on the injector or the bolt/s shearing .

Lack of correct clamping pressure can lead to the injector seal not working properly , also leading to the smell of diesel fuel . Once an injector has been removed , I try to smear a very thin coat of Febi ceramic grease on both sides of the seal and along the injector body to A) stop the seal falling off during install B) allow the seal to move / deform during clamping c) stop any steel / alloy bonding occurring during use . Read up on seized common rail injectors & their destruction during attempts at removal . I use the Febi stuff as it does what is says on the tin , Really does work at very very high temps , used on a turbo actuator shaft that had seized due to heat & corrosion
Okay you guys convinced me. I'll clean and reinstall all injectors correctly. Ordered 5 OEM mounting kits. Also bought an injector cleaning kit to clean holes as best as possible. Thank you for the ceramic paste tip, I'll definitely do that.

What are the torque specs for clamp bolts? I searched online and found 28 and 13 nm, which one is correct?

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Technically, yes but it depends how dextrous and creative you are.
Life's too short so I bought the tool as for me, Euro 3 circlip removal and installation is a real pain.
That's what I've decided too. Just ordered it at a Volvo dealership for 84€.
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Old Jul 16th, 2020, 01:18   #12
dingov70
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Fuel injector – tension mounting: Torque to 13 Nm
Injectors D5244T/T2/T3: Torque to 28 Nm
Injectors D5244T4/T5/T6/T7/T18: Torque to 13 Nm

you will have to confirm exactly which model you have , sorry
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Old Jul 16th, 2020, 09:07   #13
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Fuel injector – tension mounting: Torque to 13 Nm
Injectors D5244T/T2/T3: Torque to 28 Nm
Injectors D5244T4/T5/T6/T7/T18: Torque to 13 Nm

you will have to confirm exactly which model you have , sorry
I have D5244T euro 3, one of the firsts.
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Old Feb 12th, 2023, 10:55   #14
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Originally Posted by dingov70 View Post
Fuel injector – tension mounting: Torque to 13 Nm
Injectors D5244T/T2/T3: Torque to 28 Nm
Injectors D5244T4/T5/T6/T7/T18: Torque to 13 Nm

you will have to confirm exactly which model you have , sorry
Hi everyone.

I'm about to change my swirl flap actuator and I gathering all the information I can.

What's the difference between "Fuel Injector Tension Mounting" and just "Injector" referering to torque setting? As far as I know the injector is holded in place by the clamp and the clamp holded by the studs. So... what will be the torque setting of the stud that holds the clamp that holds the injector? 13 nm or 28nm?

Thanks.
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