1470cc s2 piston rings,liners,Rod bearings

[Rainer]

Did a quick search,


These seem to have a 82mm base

https://www.ebay.ie/itm/Renault-R16-8-CV-Kolben-Buchsen-76-MM-unten-82-mm-Renault-16-Pistons/112754654273?hash=item1a40b37c41:g:zuEAAOSwMfhaW0wd

and thesem listed with 82,5mm base
The liner dimesions are in the description, so you can compare these to your originals

https://www.ebay.de/itm/Renault-16-R16-8cv-1469cc-1968-1972-pistons-liners-rings-set-76mm-chemises-/264461419178

[Luciano1985]

Those are low compression Renault Pistons
I had thrm on my ebayy watch list
My original high compression pistons are saved , i jusst ned pistons rings now

[Luciano1985]

The seller informed me he has shipped the rifht linera today
Now im down to rings
Im not sure if its the right way to messure them and i want to make sure i order the right ones
The seller suggested these are a good fit  can anybody confirm?
https://www.renault16shop.com/0855704800,-0607777500,-7700502511
He is telling me messures are
1,75 x 3,3
2,0 x 3,4
4x 3,5
But mines has a ridged ring these look difrennt
Also a questtion about bearings
Mechanic is telling me there are 2 sets road and main bearings and i should change both
Im not exacly sure about the righ ones for my engine
Sellet from renault shop is suggesting these are the corect ones for the roads but after sending me the rong liners i want to double check:
https://www.renault16shop.com/7701348413,0996105000,0996049000

[jbcollier]

If you look in the manual, you will find the ring specs listed:

http://www.lotus-europa.com/manuals/s2work/tech/index.htm

Compression rings have a 2mm nominal width.  Oil control, 4mm.

However, I still haven't seen a clear photo of the piston tops.  Is there a raised section?  Or just flat?

Once you get the new rings, check the clearance in the ring groove and the end gap in the liners.  Worn ring grooves can be repaired.

Did you clean and measure your crank?  If you need standard bearings then the ones you list are correct.

With the engine apart, definitely replace the main and rod bearings.  The ones you ahem are very, very old.

[Luciano1985]

Thank you very much
Ive tried the manual but is like a cifer for me as i know nothing of mechanics ,and my mechanic does not understand english!
Yes they are the original high compression raised pistons!
So i can order the rod bearings and rings from the links above?

[jbcollier]

In the manual it specifies the upper rings as 2mm wide.  The new rings are 1.75mm.  The ring you measured is 1.75mm.  I would buy the rings but you need to check clearances CAREFULLY when they arrive.

The original pistons have been known to crack.  Check them carefully.

[Luciano1985]

Thank you very much
Im about to pay my invoice
However im not sure about the main bearings beeing corect
Can anybody advise on the right size of the main bearing?

[jbcollier]

The 1470, 1565, 1596, 1605 and 1647 engines all take the same crank and rod bearings.  The bearings come in different sizes.  Standard for a stock cranks and 0.25mm under is available for a reground crank.  The aftermarket can supply even larger undersizes but the crank needs to be nitrated for anything under 0.25mm.