R4 GTL piston rings

[Bflorian]

Hello, I've recently bought a 1990 Renault 4 GTL from a junkyard(no papers, just a rally car project), and I have really bad compression problems, I measured the compression on all four cylinders and its horrible: 1: 5Bar, 2: 3Bar, 3: 4Bar, 4: 6Bar. Soooo, it's time for new rings I think but I have a problem, the main one, what kind of/ size rings does it use it has the 1.1l(1108cc) cleon fonte engine. I've read that it uses 3 rings witch are 70mm and 2.0 mm top + 2.0 mm second + 3.5 mm oil, but locally(kinda) in Serbia and even in Hungary I can only find rings in a similar size in 70mm, 1,75mm top, 2.0mm second and 3.5mm oil. Can I use that? Or what should I use?

 

[Andy McGhee]

Are these the ones? Der Franzose lists Serbia as one of the countries they deliver to:

R4R5R6Caravelle piston rings engine 1108cc) for 1 piston. Bore: 70mm

Fast deliver from our web shop! Suitable for Renault R4, R5, R6, Caravelle. Piston rings: 2,0 + 2.0 + 3,5mm

www.franzose.de

 

[Bflorian]

Are these the ones? Der Franzose lists Serbia as one of the countries they deliver to:

R4R5R6Caravelle piston rings engine 1108cc) for 1 piston. Bore: 70mm

Fast deliver from our web shop! Suitable for Renault R4, R5, R6, Caravelle. Piston rings: 2,0 + 2.0 + 3,5mm

www.franzose.de

I cannot find it locally, but thanks for the link, the only problem I have with that is that the shipping cost is almost the same, a bit more than for one piston(38EUR)

 

[angel]

Before taking out the pistons and measuring the piston ring thickness, don't take anything you have read for granted. There had been many production and suppliers variations over the lengthy production run of the Cleon engine.

 

[JdeW]

Yes do as @angel wrote and first measure the piston rings as with my R4 GTL with 1108cc Cleon the piston rings where 1,75 + 2,0 + 3,5

R4R5R6Caravelle piston rings 700mm for 4 pistons. Suitable for

Fast deliver from our web shop! Renault R4, R5, R6, Caravelle. Engine capacity: 1108cc. Bore: 70,0mm. Piston rings: 1,75 + 2.0 + 3,5mm

www.franzose.de