Throttle pots and sumps

[Trevsked]

Two question.

1. I changed the oil on my 1997 4.2 Cerbera today and was expecting to find two sump plugs as in the online manual but there was only one to the rear. Is this usual and the manual wrong or were there a mix of sumps? Also the dipstick on my car is at the front of the engine as opposed to where the handbook suggests, in the V towards the rear. I was expecting the engine to take 6 litres of oil but I think it was more in the order of 7 litres.

2. On looking at the throttle pots I see they are both white, shouldn't one be white and the other blue or am I dreaming? If they should be different colours how would two whites work and what is the difference between them?

Trevor.

[mikesr]

I think very early engines had two sump plugs and had the dipstick at the rear.

Later engines have one sump plug and the dip stick was moved to the front.

The throttle pots are correct they should be the same colour.

[Trevsked]

Thanks, all makes sense.

Trevor.

[JensenA]

I think 4.2's have the White ones, and we superior 4.5 owners have the (Royal) Blue ones

[SimonKD]

JensenA said:

I think 4.2's have the White ones, and we superior 4.5 owners have the (Royal) Blue ones

Yes but we have to pay for that privilege.

I still cannot understand why the white ones are £36 but the blue ones are £54!


Regards

Simon

[Trevsked]

I think I may have an issue with one pot as when setting it up the manual states 15% as a base and whilst the right bank I can get to read steady at 14.8 or 15.2%, the left one flashes constantly between the two. Is that a sign? Also where can I get the pots at £36, I've seen them mostly at £60.

Trevor.

[pmessling]

Have a search on eBay for the blue ones I managed to get one for a good price a week or so ago. Changing both mine when back from holiday as they are a bit notchy when adjusting.

Peter

[mikethebike1127]

JensenA said:

I think 4.2's have the White ones, and we superior 4.5 owners have the (Royal) Blue ones

Knob!!! LOL

[Trevsked]

Got a throttle pot off Ebay and fitted it today. Set it up with the laptop and now running betterthan ever. Each time I fiddle with the car it improves which is very satisfying as often with other cars I have chased around trying to improve with varied success. Happy to say tat the readings on the laptop are as far as I can see, spot on with everything working on the car as it should with the exception of the water tep gauge which reads approximately 10 degrees high. Is there a cure for this or do I live with it?

Trevor.

[pmessling]

The temp gauge is known to over read. I'm currently looking at SPA dual oil pressure and water temp gauge. As a job to add to my growing winter list.

Think it will offer more peace of mind fitting it compared to the standard gauge.

Peter

[Trevsked]

Do you think it will work with the original sender?

Trevor.

[bashking]

Do the throttle potts just slide off the shaft once you have removed the 2 retaining screws, Tried to take one of mine off to fit the act bearing kit but it seemed to be stuck so was reluctant to use force.

Any info would be great.

[bashking]

pmessling said:

The temp gauge is known to over read. I'm currently looking at SPA dual oil pressure and water temp gauge. As a job to add to my growing winter list.

Think it will offer more peace of mind fitting it compared to the standard gauge.

Peter

I have an spa gauge on mine and it works very well indeed.
Highly recommended.

[gruffalo]

bashking said:

Do the throttle potts just slide off the shaft once you have removed the 2 retaining screws, Tried to take one of mine off to fit the act bearing kit but it seemed to be stuck so was reluctant to use force.

Any info would be great.

Mine did with a little wiggle.

[DuncanM]

pmessling said:

The temp gauge is known to over read. I'm currently looking at SPA dual oil pressure and water temp gauge. As a job to add to my growing winter list.

Think it will offer more peace of mind fitting it compared to the standard gauge.

Peter

Just a quick point regarding the over read.

I had my Temp gauge repaired by a company called Gauges North West Ltd when my capillary snapped.

They took quite a while to fix it, but they did manage to get the calibration spot on, and now my temp gauge reads exactly the same as the ECU where as previously it was 10deg higher (as per most!).

Regards

Duncan

[Byker28i]

isn't the 10 degrees higher due to the routing of the capilary tube near-ish to the exhaust manifold, so it picks up extra heat on its way to the gauge. I know some have rerouted the tube.

Fans are driven from ecu temp though