1.9/2.1 Cylinder head differences

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ajsimmo
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Re: 1.9/2.1 Cylinder head differences

Post by ajsimmo »

That sounds like recessed valve seats. The valves sit deeper in the head as the seat burns away, therefore the valve tops move out towards the rockers, eventually having no adjustment left. Do you have any pics of the head before fitting? If the valve head is sitting flush (or below) it's had it.
See pics for good and bad:ImageImage

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ajsimmo
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Re: 1.9/2.1 Cylinder head differences

Post by ajsimmo »

Also are all the pushrods seated properly in the lifters? If not, you'll get this problem.

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Re: 1.9/2.1 Cylinder head differences

Post by lucas »

Thanks for the reply, the valves were certainly not recessed into the head like the in the picture, I did spend a fair bit of time with the grinding paste ensuring no pitting in the seats so would have sparred this. So it sounds like a follower issue? But all 4? How do I go about confirming/ fixing that?
1991 ex telecom syncro. 2.1 engine replaced with a 1.9 at some time, has never run right since.

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Re: 1.9/2.1 Cylinder head differences

Post by itchyfeet »

lucas wrote:Thanks for the reply, the valves were certainly not recessed into the head like the in the picture, I did spend a fair bit of time with the grinding paste ensuring no pitting in the seats so would have sparred this. So it sounds like a follower issue? But all 4? How do I go about confirming/ fixing that?

Answered on your other thread this thread is about head differences
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Re: 1.9/2.1 Cylinder head differences

Post by itchyfeet »

stolen those pics Andrew and made a reference pic

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Re: 1.9/2.1 Cylinder head differences

Post by itchyfeet »

Image

Image
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
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