As you have the head off I would take the valves out and "bench roll" the stems looking for any slight valve head wobble. If I were doing this job I would also do some valve lapping on all the valves (you will have to on the two replacements for the bent ones). With the lapping of the old valves you will be immediately able to see from the valve seat and valve head if there is any signs of the valve being bent (oval and non concentric lapping marks).

s130 said:

As you have the head off I would take the valves out and "bench roll" the stems looking for any slight valve head wobble. If I were doing this job I would also do some valve lapping on all the valves (you will have to on the two replacements for the bent ones). With the lapping of the old valves you will be immediately able to see from the valve seat and valve head if there is any signs of the valve being bent (oval and non concentric lapping marks).

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Will do, thanks for the tips.

BrianMcL said:

Will do, thanks for the tips.

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Can't work out how to get the 2 stuck valves out ?

Also, I've tried to get the injectors out but they seem pretty stuck as well.

Any tips that anyone has would be very much appreciated.

For the two stuck valves I'm assuming it is because the followers are still jammed in the head as per you original pictures. If this is the case then I think you are going to have to take the head to a machine shop. They will be able to mill away then central meat of the followers without touching/damaging the the valve spring top plate or the collets.

Injectors will probably need vibrating/shaking out with a LOW toque ratchet wrench + the usual penetrating fluid. Diesel fuel is very good in this respect.

s130 said:

For the two stuck valves I'm assuming it is because the followers are still jammed in the head as per you original pictures. If this is the case then I think you are going to have to take the head to a machine shop. They will be able to mill away then central meat of the followers without touching/damaging the the valve spring top plate or the collets.

Injectors will probably need vibrating/shaking out with a LOW toque ratchet wrench + the usual penetrating fluid. Diesel fuel is very good in this respect.

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We've tried everything to get them out and they are not for shifting I think it's safe to say that the head will have suffered a fair bit of damage.

Going to get a replacement head and see how I get on with that.

I'll try and post more updates over the next few days as the weather seems to be set relatively fair.

I've also ordered a slide hammer and injector removal tool. I'll post an update on how I get on with it, maybe as a separate post if that's allowed?

Interesting thread, well done for tackling this.

I had a very nearly similar problem with our punto hgt, that used the same 1.9 8V multijet engine (with 100hp) the water bump bearings broke up and the pump went off centre, this then guided the belt off the cam pulleys. The first I knew of it was smoke coming out from under the bonnet, which as it turned out was the belt, cutting its way through the plastic cam covers, but, it didn’t snap the belt and it didn’t come off the camshaft pulleys completely so it just managed to alert me in time to protect the timing.

I threw it at a fiat specialist, as at the time there was no engine literature and the 1.9 hgt was relatively unheard of.