Heads Off Due To Pressurised Coolant

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maxstu
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Re: Heads Off Due To Pressurised Coolant

Post by maxstu »

Deffo not working for me :roll:
Thus is what happens when you put oil rings against spring in place according to Grant instructions. I need to space rings out further to not get caught in sleeve cut out.
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Last edited by maxstu on 18 Aug 2020, 16:34, edited 1 time in total.
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maxstu
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Re: Heads Off Due To Pressurised Coolant

Post by maxstu »

Er l mean closer to spring ring join. Not further out.
:oops:
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937carrera
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Re: Heads Off Due To Pressurised Coolant

Post by 937carrera »

I can't make sense of that picture, it looks like there is a huge gouge missing from the piston. Can you take one from a bit further away ?
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Re: Heads Off Due To Pressurised Coolant

Post by ajsimmo »

Ah yes, I see your issue now. The last ones I did with that set up were AA Performance, and I set them all at 12 and 6 o'clock alternately. So top ring at 12 o'clock as per VW/Bentley, 2nd at 6, first oil scraper 12, spring ring join at 3 or 9, 2nd scraper at 6.
That way nothing pops out the cylinder cutouts. They went in easily first time with a gentle but firm push.

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937carrera
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Re: Heads Off Due To Pressurised Coolant

Post by 937carrera »

Ah, I get it now :)

Go to a different time zone

1 & 7, or 2 & 8

I believe the rings rotate in use anyway
1981 RHD 2.0 Aircooled Leisuredrive project, CU engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine

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maxstu
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Re: Heads Off Due To Pressurised Coolant

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937carrera wrote: 18 Aug 2020, 18:01 Ah, I get it now :)

Go to a different time zone

1 & 7, or 2 & 8

I believe the rings rotate in use anyway

:ok :ok
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Re: Heads Off Due To Pressurised Coolant

Post by 937carrera »

That's kind, but it was Andrew that identified the issue ;)
1981 RHD 2.0 Aircooled Leisuredrive project, CU engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine

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Re: Heads Off Due To Pressurised Coolant

Post by maxstu »

ajsimmo wrote: 18 Aug 2020, 17:57 Ah yes, I see your issue now. The last ones I did with that set up were AA Performance, and I set them all at 12 and 6 o'clock alternately. So top ring at 12 o'clock as per VW/Bentley, 2nd at 6, first oil scraper 12, spring ring join at 3 or 9, 2nd scraper at 6.
That way nothing pops out the cylinder cutouts. They went in easily first time with a gentle but firm push.

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:ok :ok
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maxstu
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Re: Heads Off Due To Pressurised Coolant

Post by maxstu »

Back to this. More scraping and cleaning out of piston oil cut out allowed me fully close ring compressor.
Im going to place rings as per Grant instructions
First comp at 12. Second comp at 6. Spring ring over gudgeon pin and the two scapers either side to miss cylinder cut out.

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Re: Heads Off Due To Pressurised Coolant

Post by ajsimmo »

That'll work

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Re: Heads Off Due To Pressurised Coolant

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ajsimmo wrote: 22 Aug 2020, 13:03 That'll work Image

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It did! My first wasserboxer insertion :lol: piston arrow facing flywheel too. Must not forgot green and black seals...repeat! Must not forget green and black seals...all day

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Re: Heads Off Due To Pressurised Coolant

Post by maxstu »

Barrels honed the RD250 way. By hand with P280. Washed in petrol afterwards.
What about the upper wear lip?

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Re: Heads Off Due To Pressurised Coolant

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Two in. Other side tomorrow.

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Re: Heads Off Due To Pressurised Coolant

Post by 937carrera »

Looking nice & clean now :ok

Just one thing....... and I haven't got one I can look at for now, but is that a number 1 in blue on the piston ?

If it is, then that looks like the left crankcase half to me
1981 RHD 2.0 Aircooled Leisuredrive project, CU engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine

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maxstu
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Re: Heads Off Due To Pressurised Coolant

Post by maxstu »

937carrera wrote: 22 Aug 2020, 16:18 Looking nice & clean now :ok

Just one thing....... and I haven't got one I can look at for now, but is that a number 1 in blue on the piston ?

If it is, then that looks like the left crankcase half to me

My marker pen for reminding me. :oops:
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