Prime Minister Malcolm Turnbull is staring down internal critics pushing for ministerial sackings.

Key points: PM Malcolm Turnbull insists he has an 'outstanding ministry' amid Coalition's internal ructions

PM Malcolm Turnbull insists he has an 'outstanding ministry' amid Coalition's internal ructions Former PM Tony Abbott's website features obvious rebuke to Mr Turnbull with 'plan to win the next election'

Former PM Tony Abbott's website features obvious rebuke to Mr Turnbull with 'plan to win the next election' Social Services Minister Christian Porter defends Christopher Pyne, says he's doing a 'marvelous job'

He says he has an outstanding ministry, but there have been calls from within the Coalition for Mr Turnbull to have a reshuffle soon.

Some conservatives are pushing for Christopher Pyne to lose his job as Manager of Government Business.

But Mr Turnbull said this morning he had an "outstanding ministry, all of my ministers have my support".

"I have a great team and we're delivering great results for the Australian people," he said.

The Prime Minister and many of his senior ministers have been trying to play down simmering tensions inside the Government.

But former prime minister Tony Abbott delivered his alternative manifesto in a speech yesterday which included clear criticisms of the Government's policy approach.

Mr Abbott's website also features an obvious rebuke to his successor, with "a plan to win the next election".

Mr Turnbull has rejected all of Mr Abbott's criticisms.

He dismissed the former prime minister's criticism of the renewable energy target, pointing out it was set when Mr Abbott was PM.

Malcolm Turnbull rejected Tony Abbott's call for a freeze on renewable energy projects. ( ABC News: Alex Beech )

"There is certainty in the industry, investments are being made and what is needed to make renewables reliable is obviously storage," Mr Turnbull said.

"I am not into political slogans. I am into engineering and economics."

He also rejected Mr Abbott's apparent criticism of the extra spending on school funding in the so-called Gonski 2.0 plan, noting it was passed by all members of the Coalition.

"What we've achieved is a massive reform," Mr Turnbull said.

And while Mr Abbott called for a freeze on new renewable energy projects, Mr Turnbull argued Australia needed more generation.

"We can't afford to have a slowdown in the delivery of more generation. What we also need of course is storage," he said as he visited a potential pumped-hydro site in the Snowy Mountains.

'I don't think that is a critique that holds water'

Social Services Minister Christian Porter also pushed back against calls to dump Mr Pyne from his position as Leader of the House.

Christian Porter said issue had been "beaten up well beyond reasonable proportionality". ( AAP: Lukas Coch )

He said his colleague was doing a "marvellous job", dismissing Mr Abbott's negative commentary on the Government's policy approaches.

"If the critique is somehow that the Turnbull Government hasn't made substantive successful reforms to the Australian economy, I don't think that is a critique that holds water," Mr Porter said.

The split between "small-l" Liberals and conservatives widened after Mr Pyne's speech at a private function last week was recorded and leaked.

Tony Abbott's website features "a plan to win the next election". ( Supplied: Tony Abbott )

Mr Pyne was recorded telling his moderate liberal colleagues, "We are in the winner's circle" and noting he and "quite a few of us are in very senior cabinet positions in a Turnbull Government".

Those leaked comments have angered conservatives who see it as gloating and some want him sacked from the key role of Leader of the House — also known as the Manager of Government Business.

Mr Porter said the issue had been, "beaten up well beyond reasonable proportionality".

He praised his colleague, saying Mr Pyne did "an excellent job" and was "a fantastic leader of the house".

Mr Porter said he had no doubt Mr Pyne had the full support of all his colleagues, "full stop".

Mr Pyne refused to respond to the latest flare-up when interviewed on radio this morning as part of a regular spot with Labor frontbencher Anthony Albanese.

Mr Albanese also defended Mr Pyne's performance as Leader of the House.

"Half their front-bench struggle to find where the chamber is, let alone know how the Parliament actually functions," Mr Albanese told radio 5AA.