Main and Big End Bearing Replacement (GEMS V8).....

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Something along those lines. You'll have to drill into the tamper proof plug if someone else hasn't removed it yet.



Where does it say that? There is no where to set it using my Nanocom.



In the settings there is short term idle and long term idle setting but they are just the amount of steps that the motor has learned to maintain that reference speed. If you change them (on mine at least) they just go back to where they were when the ECU tries to achieve the reference speed.

http://www.nanocom-diagnostics.com/uploads/downloads/Lucas GEMS ECU Guide.pdf
 
Get your tick over up to where it should be Ant or you will run the bearings again PDQ. Stick a couple of cans of STP in it. Use thicker oil. Worn rocker shafts can bleed oil pressure away also. Did you take a look at the relief valve?

Top quality pics and narrative.

Do suggest, though, that you bung in any additives after your first oil change, to give the shells a chance to bed in.

Did you check the pickup strainer?

Looks like it was a long hard days night but just think - in the mornings, you'll be able to start the engine and drive away instead of finishing off your toast and coffee whilst waiting for the oil light to go out:)
 
Top quality pics and narrative.

Do suggest, though, that you bung in any additives after your first oil change, to give the shells a chance to bed in.

Did you check the pickup strainer?

Looks like it was a long hard days night but just think - in the mornings, you'll be able to start the engine and drive away instead of finishing off your toast and coffee whilst waiting for the oil light to go out:)

Is that why new engines have additives in the their oil from the factory and it is removed at the first oil change. Get some STP in now and sort the low idle or do the job again in a few months.
 
Current Idle can be changed but the GEMS may overwrite.....and the Long Term Idle value cannot be overwritten but can be reset.....

From this I can assume you reset the LT Idle reading...then set the Current Idle reading to a new value, this stops the LT Idle overwriting the Current Idle!!
 
Yes that is where I got the passage about the idle not able to be changed from. I was meaning which part makes you think you can change the idle speed as maybe I'm missing something as I can't see a way to on mine.

Does yours idle at 700 RPM +- 20? If so it won't make a difference if you reset the long term or short term values it will revert to the preset. Ants does not idle at the correct speed therefore something is wrong, the ECU has not learned a lot has it. I would be looking at the IACV and cleaning out the airways and resetting the values before i started buggering about with manual adjust.
 
Current Idle can be changed but the GEMS may overwrite.....and the Long Term Idle value cannot be overwritten but can be reset.....

From this I can assume you reset the LT Idle reading...then set the Current Idle reading to a new value, this stops the LT Idle overwriting the Current Idle!!

Don't know Ant, don't have a Gems Nanocom. But i would sort the low idle out, look at the rockers PDQ and stick something in the sump to help it before it runs the bearings again. Just using it and hoping for the best after all that work is foolish.
 
Don't know Ant, don't have a Gems Nanocom. But i would sort the low idle out, look at the rockers PDQ and stick something in the sump to help it before it runs the bearings again. Just using it and hoping for the best after all that work is foolish.
Oh totally agree Tony, I am certainly not hoping for the best that is for sure.!!!

(I'd hope you would know that of me by now my friend :D:D:D)
 
Oh totally agree Tony, I am certainly not hoping for the best that is for sure.!!!

(I'd hope you would know that of me by now my friend :D:D:D)

No certainly don't think you would go half cocked. If you have a chance to save it, do all that is required to do that before it is put into use. The shells were pretty bad to be fair, been like that a while, the low idle will not help the new ones at all.
 
Just a passing thought - I don't know if I missed it in this or the previous thread on the oil pump replacement, but have you connected a gauge to check the actual oil pressure, i.e. could the pressure switch for the warning light be wrong?

Alastair

(Fab 'How to' thread by the way)
 

He only splashed the others. Bestline he just poured in. On top of that, how these things mix with the oil is another matter. It is over 20 years since I was involved in this sort of thing but modelling how different oil blends were made up and performed was considered a dark-art at the time. I'd be more tempted to go with a Which? report or some independent testing ... or stick safe. It might be great but then ... ?!
 
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