➜ advanced search
Add a more detailed reply Start a new thread in the Engines forum
Home -> Forums -> Engines -> Piston ring gaps

displaying posts 1 to 11 of 11

Author Subject: Piston ring gaps
S8-Tom

Regular

Location: Chichester

Registered: 02 Feb 2018

Posts: 328

Status: Offline
Post #1
I've been measuring my crank and piston rings today to make sure everything's ready to be put back together when I get the head back.

I've bought Goetze rings (part 08-306800-00) for a Vauxhall C20LET engine as these have been widely used by others for the J4RS engine.

I'm getting 0.5mm on the top ring and 0.45 on the second/middle ring. This is pushing the upper range of what Haynes suggests and I think I've read on here that 0.3-0.35 is typical?

________________________________________

1343Z4 coolant hose o-rings for sale
198131 injector o-rings for sale
Posted 30th Oct 2020 at 15:31
Profile
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

Status: Offline
Post #2
your block is probably a bit worn out! quite typical of these blocks.

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 30th Oct 2020 at 19:11
Profile
S8-Tom

Regular

Location: Chichester

Registered: 02 Feb 2018

Posts: 328

Status: Offline
Post #3
welshpug! wrote:
your block is probably a bit worn out! quite typical of these blocks.


I think that's the reality of it. I'm sure this car hates me. The block in question has 80K on it and was measured with a dial bore guage, appeared to be good but clearly wasn't thorough enough with the measurements! Shame, it's been decked and honed already Thumbs down

Looks like I'm back to the original block and an overbore then. FFS Wink

________________________________________

1343Z4 coolant hose o-rings for sale
198131 injector o-rings for sale
Posted 30th Oct 2020 at 20:02
Profile
prism7guy

Seasoned Pro

Location: DoncastAAAAARGH

Registered: 13 Jan 2008

Posts: 4,637

Status: Offline
Post #4
What pistons will you be going for with the oversize bore?

________________________________________

Goldie the track car.
Posted 30th Oct 2020 at 23:12
Profile
S8-Tom

Regular

Location: Chichester

Registered: 02 Feb 2018

Posts: 328

Status: Offline
Post #5
prism7guy wrote:
What pistons will you be going for with the oversize bore?


Found these ones from Mahle. The 06xxxx are the corresponding Peugeot part number. The first oversize is NLA from Peugeot but in any case, they're twice the price of the Mahle items.

________________________________________

1343Z4 coolant hose o-rings for sale
198131 injector o-rings for sale
Posted 31st Oct 2020 at 08:25
Profile
prism7guy

Seasoned Pro

Location: DoncastAAAAARGH

Registered: 13 Jan 2008

Posts: 4,637

Status: Offline
Post #6
Cheers for that, may have to get a set if my suspicions are true on one of my engines.
I thought they'd be more expensive than that to be honest.

________________________________________

Goldie the track car.
Posted 1st Nov 2020 at 20:14
Profile
S8-Tom

Regular

Location: Chichester

Registered: 02 Feb 2018

Posts: 328

Status: Offline
Post #7
prism7guy wrote:
Cheers for that, may have to get a set if my suspicions are true on one of my engines.
I thought they'd be more expensive than that to be honest.


Even better price from here!

I've been talking to them and they've confirmed they can be ordered and that they're suitable for the XU10J4RS

I've ordered 4 @ £275.92 shipped to the UK.

________________________________________

1343Z4 coolant hose o-rings for sale
198131 injector o-rings for sale
Posted 2nd Nov 2020 at 08:48
Profile
prism7guy

Seasoned Pro

Location: DoncastAAAAARGH

Registered: 13 Jan 2008

Posts: 4,637

Status: Offline
Post #8
Cheers for sharing that info Thumbs up

________________________________________

Goldie the track car.
Posted 2nd Nov 2020 at 20:34
Profile
S8-Tom

Regular

Location: Chichester

Registered: 02 Feb 2018

Posts: 328

Status: Offline
Post #9
Pistons arrive this morning. Less than a week from ordering and tracked right to my front door within a 1 hr time slot!







________________________________________

1343Z4 coolant hose o-rings for sale
198131 injector o-rings for sale
Posted 9th Nov 2020 at 11:11
Profile
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

Status: Offline
Post #10
ideal time to make those cutours +1.0mm Big grin

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 9th Nov 2020 at 16:56
Profile
S8-Tom

Regular

Location: Chichester

Registered: 02 Feb 2018

Posts: 328

Status: Offline
Post #11
welshpug! wrote:
ideal time to make those cutours +1.0mm Big grin


Impact on compression with larger bores AND valve cutouts? Head will have a small amount taken off (currently at 136.91) and block decked. There's also the argument of mapping or not with cams Dunno

________________________________________

1343Z4 coolant hose o-rings for sale
198131 injector o-rings for sale
Posted 9th Nov 2020 at 19:02
Profile
Home -> Forums -> Engines -> Piston ring gaps

All times are GMT. The time is now 17:03

The Peugeot GTi-6 & Rallye Owners Club - ©2024 all rights reserved.

Please Note: The views and opinions found herein are those of individuals, and not of The Peugeot 306 GTi-6 & Rallye Owners Club or any individuals involved.
No responsibility is taken or assumed for any comments or statements made on, or in relation to, this website. Please see our updated privacy policy.