La pochette de joint contient-elle les joints de carburateur ?

Non. Les pochettes supercomplètes contiennent l'ensemble des joints haut et bas moteur, du cache-culbuteur au carter et de l'admission à l'échappement.

Quelle est cette marque Glaser ?

Glaser appartient à Victor Reinz, fabricant de première monte pour Renault, y compris pendant toute l'ère des moteurs Turbo.

Jusqu'à quelle pression tient le joint de culasse R5 Alpine Turbo ?

Le joint est conçu selon le cahier des charges d'origine. Il accepte généralement 0,2 bar de plus, mais au-delà nous recommandons fortement d'utiliser des chemises en fonte GS700 certifiées et un joint à anneaux séparés. Voir notre démarche complète de réfection moteur ici : https://www.mespiecesauto.com/la-renovation-dun-moteur-r5-alpine-r5-turbo-r5-alpine-turbo/

Dois-je prévoir autre chose que les joints pour ma R5 Alpine ?

Oui. Dans le cadre d'une remise en état, outre la métrologie, il est conseillé de changer les consommables tels que segmentation, coussinets ou encore soupapes.

Je voudrais calculer le rapport volumétrique de ma R5 Alpine, comment faire ?

Mespiecesauto met à disposition des calculateurs en ligne : rapport volumétrique, diagrammes d'arbre à cames et autres outils moteurs. Accédez-y ici : https://www.mespiecesauto.com/outil-calcul-moteur/

Ma culasse est hors cote, où trouver un joint plus épais pour ma R5 Alpine ?

Nous développons des joints sur mesure à anneaux séparés, disponibles en différentes épaisseurs (1,0 mm à 3,0 mm) et alésages à la demande.

Je n'ai besoin que de la pochette rodage ?

Économiquement, il est préférable d'acheter une pochette complète. Le coût futur des joints unitaires de bas moteur rendrait l'opération plus chère. Paradoxalement, les pochettes rodage seules sont souvent plus onéreuses que les complètes.

R5 Alpine turbo full gasket set

Name: Renault 5 Alpine / Alpine Turbo Engine Gasket Set
Brand: Mespiecesauto
Price: 89 EUR
Availability: InStock

89.00 €

In stock

R5 Alpine Turbo Gasket Set – Renault 5 Alpine

This gasket set is specifically designed for 1397 cc Cléon-Fonte engines, types 840-725, 840-726 or C6J, fitted to naturally aspirated and turbocharged Renault 5 Alpine models. This 840-725 engine gasket kit includes all the components required for a complete engine rebuild, while respecting the original Renault specifications.

Whether for road use or competition, our 1397 cc Cléon-Fonte engine gaskets ensure perfect sealing, with no modification required.

The gasket set includes:

All upper and lower engine gaskets
Original bore: 76 mm
Cylinder head gasket thickness: 1.6 mm
Renault references: 7701461244, 7701461245, 7701457561

✅ Gasket set manufactured by Glaser – Victor Reinz, a worldwide leader in gaskets for light vehicle engines.
Shipping costs included in the price.

Gasket Set Technical Specifications & Metrology Data

Gasket set contents

Cylinder head gasket: 7701036764 / 6001001042
Timing cover gasket: 7701349469
Crankshaft oil seal: 7703087080 (80x100x13)
Camshaft oil seal: 7703087104 (30x42x8)
Cylinder liner base seal
Rocker cover gasket: 6001000550
Oil sump gasket: 7700564792 - 7700564793
Oil sump half-moon seal: 0852937800 / 7700564813
Intake manifold gasket: 7700617869 / 7701036764
Exhaust manifold gasket: 7700617412 / 7701036765
Exhaust flange gasket: 6001001594
Cylinder head closing plate gasket: 7704000274
Spark plug well seal: 7700617862
Spacer gasket: 7704001501
Fuel pump gasket: 7701348905 / 7701348024
Water pump gasket: 7704000229 / 7704000289
Pump plate gasket: 7704000275
Oil cooler gasket: 7703061090

Displacement

Bore: 76.00 mm (+0.04 mm)
Cylinder liner protrusion: between 0.02 mm and 0.09 mm
Maximum difference between two adjacent liners: 0.04 mm
Mandatory installation: stepped pattern

Cylinder head heights

840-725 engine: 79.3 mm
840-726 and C6J750 engines: 79.8 mm
Some C6J750 cylinder heads: 79.30 mm

Gaskets & tightening

Maximum deformation of the gasket surface: 0.05 mm
Recommended tightening torque: 7 daN·m

Camshaft

Journal diameter: 38 mm (-0.05 / -0.075 mm)
End float at the retaining flange: 0.06 to 0.11 mm

Cylinder head

Valve guide: 8 mm inner diameter / 13 mm outer diameter

Crankshaft

Main journal diameter: 54.795 mm (+/- 0.01 mm)
Crankpin diameter: 43.98 mm (-0 / -0.02 mm)
End float: 0.05 to 0.23 mm

Piston

Nominal piston pin diameter: 20 mm
Piston pin inner diameter: 12 mm
Pin length: 64 mm
Piston ring heights: 1.75 / 2.00 / 4.00 mm

You can view, download and share our R5 metrology sheet to record your measurements.

Renault 5 Alpine / Alpine Turbo Engine Rebuild Advice

Cylinder Head Gasket & Specific Features of the Cléon Type 840 Engine (R5 Alpine / R5 Alpine Turbo)

The Cléon type 840 engine, fitted notably to the Renault 5 Alpine and R5 Alpine Turbo, has several specific characteristics. Metrology checks must be carried out and the measurements must comply with the specified tolerances, but that is not all.

Essential points to check

Camshaft clearance in the engine block: many R5 Alpine / R5 Alpine Turbo engines suffer from low oil pressure due to excessive clearance.
Do not install a solid steel camshaft: for physical reasons such as Hertzian contact pressure and gear resilience, this does not work properly. Prefer an original camshaft original profile or reprofiled, or our camshaft.
Tappet inspection: check their condition and material. Our tappets are compliant, manufactured from the Renault drawing and according to the manufacturer’s specifications.
Avoid oil pump rebuild kits: they do not provide reliable results. So-called “high-flow” oil pumps bring no real benefit; please refer to our video on this subject.
End float & distributor drive gear: camshaft end float is essential. Only use original cast iron distributor drive gears.
Cylinder liner height / protrusion: an essential criterion to ensure proper sealing of the cylinder head gasket, both between cylinders and against external leaks.
Cylinder head gasket diagnosis: in case of doubt, read our article: Renault 5 Alpine Cylinder Head Gasket Problem – Complete Guide .

Why choose Mespiecesauto?

Mespiecesauto has been a genuine remanufacturer of parts for classic and sports cars since 2007. We are not just a reseller: our mission is reverse engineering. The reproduction process is long and demanding. We have access to a large archive database, particularly for the R5 Alpine and Alpine Turbo engine, including the original technical drawings. This allows us to reproduce compliant parts. Test campaigns are carried out in order to obtain a part as close as possible to the original for your Renault 5 Alpine.

Examples of reproduced parts:

Connecting rod bearings
Certified GS700 cast iron cylinder liners
Forged connecting rods
Aluminium radiator
Coolant hoses