Full description of the product (H1: aluminum mounting tool for exhaust valve spring - Rotax Max & EVO)
Save time in your stands and secure the maintenance of your high-engine thanks to themounting tool for exhaust valve spring Rotax. Designed specifically to adapt to the geometry of the valve of the 125 engine range from BRP-Rotax, this technical tool is the essential accessory of the tool box of any good engine or pilot.
Machined in a anodized aluminum high quality, This tool makes it possible to compress and set up the green spring of the exhaust valve guillotine in a perfectly rectilinear way, without any effort. Its ergonomic shape offers excellent grip and avoids the tapping. By eliminating the need to force with unsuitable tools, it protects the thread of the valve housing, avoids scratching the plastic plug and prevents deforming the helical spring, thus guaranteeing the perfect deployment of your valve on the track..
Technical characteristics:
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Material: High strength machined aluminum (light and durable)
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Application: Compression and guidance of the valve reminder spring
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Motor compatibility: The whole range Rotax 125 Max (Senior, Junior, Master) as well as the latest generation versions Rotax Max EVO Equipped with the valve with electronic or mechanical management.
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Advantages: Work comfort, mechanical time saving, protection of original components.
👨🔧 - The trick in Michel (the corner of the expert)
* "Hi mechanos! If there is an annoying manipulation on an engine Rotax, It's trying to screw the hood from the exhaust valve while fighting the thrust of this damn green spring. If you make it through with a power strip or an old screwdriver, you are 100% safe to do the black plastic thread of the cap or attack the aluminum of the cylinder. And an improper valve, it is a motor that does not open in a straight line and which grazes low speed !
My trick of old briscard with this tool in aluminum: make a perfect guide !
Clean your valve guillotine and the interior of the housing with the brake cleaner to remove the 2T oil cleaner before reassembly. Position your bellows, your valve and slide the green spring.
Come tiddle this tool on top of the spring. Thanks to its adjusted form, the tool will maintain the spring perfectly straight while applying axial pressure. You only have to screw your cap calmly or install your hand retaining clip, without forcing and in the perfect axis of the case. It's clean, it's pro, and your plastic nets will tell you thank you! "*
📐 - The valve maintenance guide: step by step
1.Demontage of the valve case:5 min.
Put the kart on his carriage. Unscrew the two mounting screws of the exhaust valve block on the cylinder. Gently remove the set to access the guillotine mechanism.
2.Nettoyage calamine:10 min.
Separate the bellows metal guillotine. Scratch the calamine deposits burned on the blade of the valve with a soft metal brush or steel wool. Spray brake cleaner to degrease all.
3.Positionnement new spring:5 min.
Reassemble the clean guillotine and the bellows in the cylinder. Place the return spring (original green spring Rotax) in its central housing.
4.Compression TO THE TOOL AND CLOSING:5 min.
Follow the tip in Michel: Cutting the spring with the aluminum mounting tool. Apply constant pressure to compress the right spring. Engage the valve cap or locking system, screw it down without forcing, then remove the tool. Reassemble the complete block on the cylinder.
❓ - FAQ SEO (Frequently Asked Questions)
Q: Is this aluminum tool essential on the versions Rotax Max Evo ?
A: Yes, it is extremely recommended. Although the valve of the EVO engines is electronically controlled by a magnetic solenoid valve, it always uses an internal helical spring to ensure the mechanical return of the guillotine. This tool remains the best way to open and close the mechanism cleanly during weekend revisions.
Q: Does the green spring or plastic plug are included with the tool ?
A: Not. This article includes only the specific aluminum mounting tool (sold nude). The wear parts of the exhaust system (spring, bellows, sealing, guillotine) are available separately in our category of original spare parts Rotax.
Q: Why prefer an aluminum mounting tool rather than 3D printed plastic ?
A: Machined aluminum offers perfect stiffness under the compression force and is not likely to crack or deform if you press strongly. In addition, it resists without problems with the aggressive solvents used at the workshop (brake cleaner, cleaning, degreasing), guaranteeing unlimited life in your toolbox.