Disco 2 Down on power

Ian Mackay · Mar 18, 2018

Rebuilt the landy, was looking to get the head skimmed, anyway as mentioned the head had internal cracks so I put on an other head, slight problem, ordered a 3 hole gasket, thicker, think its not as responsive, candidate for a remap I think

Bantam1 · Mar 18, 2018

Doubt its down to gasket thickness, I only put 3 hole gaskets on anyway.

Ian Mackay · Mar 18, 2018

Bantam1 said:
Doubt its down to gasket thickness, I only put 3 hole gaskets on anyway.

Decreased compression, decreased performance !

Bantam1 · Mar 18, 2018

Ian Mackay said:
Decreased compression, decreased performance !

True but calculate the compression change; its not going to make a noticeable difference at all, unless of course you are looking for dyno performance increments on a blue printed motor.

Ian Mackay · Mar 18, 2018

I hear you Bantam, just don't feel as sharp acceleration, ??

dieseldog69 · Mar 18, 2018

Ian Mackay said:
I hear you Bantam, just don't feel as sharp acceleration, ??

Maybe the head castings were slightly different? It's amazing how a few hours with a rotary burr to smooth out casting imperfections and opening up the ports to match the gaskets can really help air flowing through the engine.

Ian Mackay · Mar 18, 2018

Aye well it's on now, not going near it again, saying that struggled to start this morning, felt like a choked fuel filter ??

Ian Mackay · Mar 18, 2018

Ian Mackay said:
Aye well it's on now, not going near it again, saying that struggled to start this morning, felt like a choked fuel filter ??

Talked to my mate he reminded me that a few of the glow plug caps were brittle and broke when we removed the head, it was -3° they might need taped on I'll check it tomorrow.

Ian Mackay · Mar 18, 2018

And he said fuel filter also

dieseldog69 · Mar 18, 2018

Ian Mackay said:
And he said fuel filter also

Seems a bit sudden for fuel filter, usually it is a bit gradual not exactly good today and no power tomorrow straight after changing the head.

I'd say you'll be doing it again soon enough.

Discodevon · Mar 19, 2018

If it struggled to start it may be pointing towards compression

Ian Mackay · Mar 19, 2018

Fuel filter changed today, sorted, .new beast, pulling strong, obviously filter was choked another part of the problem appeared to be an over tightening of the drain cap which spread the o ring and was allowing air into system, fuel filter has been on a while, all other filters and oil changed at head swap.

Disco 2 Down on power

Ian Mackay

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Bantam1

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Ian Mackay

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Bantam1

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Ian Mackay

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dieseldog69

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Ian Mackay

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Ian Mackay

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dieseldog69

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Discodevon

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Ian Mackay

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