Diesel in inlet manifold ?

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Slick8
Posts: 17
Joined: 29 Apr 2023, 00:37
x 1

Diesel in inlet manifold ?

Unread post by Slick8 »

1.6hdi. Van is off the road. Been having problems with injectors leaking, looks like fuel overflow to me. Also a lot of gas build up in crankcase, and a lot of fuel in oil. So I intake inlet manifold off and find it's soaking in diesel inside the ports. Does this point to a fault fuel pressure regulator?
wheeler
Posts: 7893
Joined: 21 Sep 2002, 19:07
x 1044

Re: Diesel in inlet manifold ?

Unread post by wheeler »

Does your engine have a DPF? if so failed regenerations can cause fuel in the oil.
I dont understand how there can be diesel in the inlet manifold, the diesel is injected directly into the cylinder & doesn't go through the manifold.
Slick8
Posts: 17
Joined: 29 Apr 2023, 00:37
x 1

Re: Diesel in inlet manifold ?

Unread post by Slick8 »

wheeler wrote: 14 Jun 2023, 22:26 Does your engine have a DPF? if so failed regenerations can cause fuel in the oil.
I dont understand how there can be diesel in the inlet manifold, the diesel is injected directly into the cylinder & doesn't go through the manifold.
Yeh, definitely fuel though. And yes fuel in oil, fuel must be coming up inlet valves.