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Wanted, info on G180SS valve clearances
https://delcohacking.net/forums/viewtopic.php?f=36&t=3764
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Author:  Glenn [ Fri Feb 25, 2022 4:58 am ]
Post subject:  Wanted, info on G180SS valve clearances

Hi All
Myself and another G180SS engine owner are looking for clearance specs for inlet and exhaust valves.

Any other similar info would also be nice.

I have the PR60 Sport owners manual and lot's of specs in there but all in Japanese and so far can't decipher what the clearances are, if they are indeed given.

Mark, in UK I assume must know, and some of the Euro group too.

Glenn

Author:  Dick [ Tue Mar 01, 2022 8:48 pm ]
Post subject:  Re: Wanted, info on G180SS valve clearances

Hi Glenn,
The inlet clearance on the SOHC 1600 and 1800 is:
In - cold is 0.101 mm
Out - cold is 0.151 mm
There s no rattle, but a kind of rhythm is always there.
Gr Dick

Author:  Glenn [ Thu Mar 03, 2022 1:17 am ]
Post subject:  Re: Wanted, info on G180SS valve clearances

Dick wrote:
Hi Glenn,
The inlet clearance on the SOHC 1600 and 1800 is:
In - cold is 0.101 mm
Out - cold is 0.151 mm
There s no rattle, but a kind of rhythm is always there.
Gr Dick


Many thanks Dick

Glenn

Author:  Glenn [ Sat Mar 19, 2022 2:48 am ]
Post subject:  Re: Wanted, info on G180SS valve clearances

I scanned a section of my PR60 owners handbook with a Japanese to English translate Ap.

While I had no doubt of Dicks info, it was neat to try the scan and see what it did. (google translate Ap on my phone)

Before and after .............

Attachments:
P68  JAPANESE.jpg
P68 JAPANESE.jpg [ 216.72 KiB | Viewed 11949 times ]
P68 TRANSLATION.jpg
P68 TRANSLATION.jpg [ 163.77 KiB | Viewed 11949 times ]

Author:  Pombellett [ Sun Mar 20, 2022 4:03 pm ]
Post subject:  Re: Wanted, info on G180SS valve clearances

The clearances are tight aren't they?....don't forget if you're running anything other than a standard cam you might want to open them up a bit.
After two munched cams and much head scratching we opted for 0.23 ex and 0.18 in.....and it seems to be working pretty well.
Attachment:
IMG_3921.jpg
IMG_3921.jpg [ 2.3 MiB | Viewed 11927 times ]

Author:  Glenn [ Tue Mar 22, 2022 6:22 am ]
Post subject:  Re: Wanted, info on G180SS valve clearances

Pombellett wrote:
The clearances are tight aren't they?....don't forget if you're running anything other than a standard cam you might want to open them up a bit.
After two munched cams and much head scratching we opted for 0.23 ex and 0.18 in.....and it seems to be working pretty well.
Attachment:
IMG_3921.jpg


Hi Mark, I'm no mechanic and to be honest, have never adjusted clearances my self. But the numbers above did seem 'tight'. Sorry to hear 2 cams paid the price.
glenn

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