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Author Topic: slap piston in swap x30xe?  (Read 4986 times)

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olm

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slap piston in swap x30xe?
« on: 13 December 2020, 15:26:47 »
Hi!
I've been with noise for a long time around 1500rpm when cold, at first it looked like tappets but the noise seems to come from the engine and in the last oil change some metal came out of the filter.
I run with a x30xe swap on a 2.6 model with LPG. My question is, may be due to run with ECU not meant for the high RC to X30XE and the LPG conversion? I don't know if repair it, or maybe it's too many inventions and go to a 3.2 with his ECU. Opinions?
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Doctor Gollum

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Re: slap piston in swap x30xe?
« Reply #1 on: 13 December 2020, 15:43:51 »
2.6 ecu will run a 3.2 with no issues and vice versa.

Could be that your 3.0 has bigger issues if your finding metal in the oil... So may well be a good idea to start looking for a decent 3.2 to swap in once the 3.0 fails...  :-\
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olm

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Re: slap piston in swap x30xe?
« Reply #2 on: 13 December 2020, 16:14:27 »
Quote from: Doctor Gollum on 13 December 2020, 15:43:51
2.6 ecu will run a 3.2 with no issues and vice versa.

Could be that your 3.0 has bigger issues if your finding metal in the oil... So may well be a good idea to start looking for a decent 3.2 to swap in once the 3.0 fails...  :-\

The fuel trims won't be different? Important since they are used by the LPG control unit to adjust the mixture. The 3.0 can run with the 2.6 in theory...   
Or my problem does it come from a lubrication failure?
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LC0112G

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Re: slap piston in swap x30xe?
« Reply #3 on: 13 December 2020, 17:01:53 »
You might want to drop off the lower oil sump pan and take a look at the oil strainer pickup. If it get fully blocked....

http://www.omegaowners.com/forum/index.php?topic=122287.msg1558753#msg1558753

Symptoms are metal fragments in the oil, and bottom end/big end bearing dis-integration leading to a knocking sound.
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Doctor Gollum

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Re: slap piston in swap x30xe?
« Reply #4 on: 13 December 2020, 17:36:16 »
Quote from: olm on 13 December 2020, 16:14:27
Quote from: Doctor Gollum on 13 December 2020, 15:43:51
2.6 ecu will run a 3.2 with no issues and vice versa.

Could be that your 3.0 has bigger issues if your finding metal in the oil... So may well be a good idea to start looking for a decent 3.2 to swap in once the 3.0 fails...  :-\

The fuel trims won't be different? Important since they are used by the LPG control unit to adjust the mixture. The 3.0 can run with the 2.6 in theory...   
Or my problem does it come from a lubrication failure?
The lpg ecu is programmed independently of the engine one, they typically mimic the petrol injectors as a guide but the lpg injector times are set by the lpg ecu, so no, that's not your problem.

Metal in the oil can only mean a mechanical issue. Either the result of a blocked pick up strainer, failing oil pump, or being run with low oil.
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olm

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Re: slap piston in swap x30xe?
« Reply #5 on: 13 December 2020, 17:39:33 »
Quote from: LC0112G on 13 December 2020, 17:01:53
You might want to drop off the lower oil sump pan and take a look at the oil strainer pickup. If it get fully blocked....

http://www.omegaowners.com/forum/index.php?topic=122287.msg1558753#msg1558753

Symptoms are metal fragments in the oil, and bottom end/big end bearing dis-integration leading to a knocking sound.

I will check it  :y Does the noise make you only cold or always?
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olm

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Re: slap piston in swap x30xe?
« Reply #6 on: 13 December 2020, 17:50:28 »
Quote from: Doctor Gollum on 13 December 2020, 17:36:16
Quote from: olm on 13 December 2020, 16:14:27
Quote from: Doctor Gollum on 13 December 2020, 15:43:51
2.6 ecu will run a 3.2 with no issues and vice versa.

Could be that your 3.0 has bigger issues if your finding metal in the oil... So may well be a good idea to start looking for a decent 3.2 to swap in once the 3.0 fails...  :-\

The fuel trims won't be different? Important since they are used by the LPG control unit to adjust the mixture. The 3.0 can run with the 2.6 in theory...   
Or my problem does it come from a lubrication failure?
The lpg ecu is programmed independently of the engine one, they typically mimic the petrol injectors as a guide but the lpg injector times are set by the lpg ecu, so no, that's not your problem.

Metal in the oil can only mean a mechanical issue. Either the result of a blocked pick up strainer, failing oil pump, or being run with low oil.

Yes, but although the engine works, the ECu of 2.6 does not control the engine as well as that of 3.0, and if the LPG takes its data from there .. I always walk with very high LTFT corrections, that's why I mention it too  :-\.  I would prefer it to be for lubrication so as not to have to change the engine... ;D
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Re: slap piston in swap x30xe?
« Reply #7 on: 13 December 2020, 18:10:46 »
You're missing my point, that engine is already on its way out if you are getting metal in the oil. At that point the cause is irrelevant. That engine will need replacing or rebuilding.

If you have fitted a bare 3.0 engine with the 2.6 ecu/wiring and sensors, then it should run fine. If you're having issues with the LPG side that's a different problem so start with the lpg.

But first replace your engone with one that doesn't have metal in the oil.
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Re: slap piston in swap x30xe?
« Reply #8 on: 13 December 2020, 18:11:32 »
What lpg system do you have fitted and with what components?
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Re: slap piston in swap x30xe?
« Reply #9 on: 13 December 2020, 18:16:37 »
Quote from: Doctor Gollum on 13 December 2020, 18:11:32
What lpg system do you have fitted and with what components?

Europe Gas, new with less 2 years
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Re: slap piston in swap x30xe?
« Reply #10 on: 13 December 2020, 18:21:20 »
Was it set up on the 2.6 engine?
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Re: slap piston in swap x30xe?
« Reply #11 on: 13 December 2020, 18:34:34 »
Quote from: Doctor Gollum on 13 December 2020, 18:21:20
Was it set up on the 2.6 engine?

No, allways over 3.0, It has already been recalibrated several times and although the car runs good, the LTFT they are high for my taste. I'm worried about the RC difference, but if you think it has nothing to do with it, we will look at the lubrication
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olm

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Re: slap piston in swap x30xe?
« Reply #12 on: 13 December 2020, 19:15:29 »
What are the pressure values ​​to check the oil pump?
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Re: slap piston in swap x30xe?
« Reply #13 on: 13 December 2020, 19:52:51 »
If you have metal in the oil, you are past that point.
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Re: slap piston in swap x30xe?
« Reply #14 on: 13 December 2020, 20:47:40 »
Quote from: Doctor Gollum on 13 December 2020, 19:52:51
If you have metal in the oil, you are past that point.

Why?
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