my bros 400

[argoxerian]

Χαιρετώ όλη τη παρέα και ιδιαίτερα τους brosάκιδες του forum.
Έχω δυο τρία θεματάκια πρός συζήτηση διότι πολλά έχώ ακουσει περί αυτών και νομίζω πως χάνω τη μπάλα. Τα λάστιχα που φοράει το κτήνος είναι metzeler lasertec χρονολογίας 08 όπου λόγω ακινησίας είναι ξερά. Οι διαστάσεις τους είναι εμπρός 110/80-17 και πίσω 150/70-17. θα ήθελα να μου προτείνεται αντίστοιχα λάστιχα και μία σωστή μέση πίεση.
Θέλω ακόμα να αλλάξω λάδια και φίλτρο λαδιού διότι έχω κάνει αρκετά χιλιόμετρα με τα λάδια που έχω τώρα περι τα 5000 τα περισσότερα σε ταξίδια. Τα λάδια που μου έβαλαν νομίζω ότι είναι motul ενω εγώ ήθελα να βάλω castrol.
Δεν περίμενα να ενθουσιαστώ με το bros οταν ήρθε στα χέρια μου αλλά με κέρδισε η τιμιότητα του. Εδω και 6 μήνες που το έχω, το μάζεψα και με έχει βγάλει ασπροπρόσωπο κάνοντας επικά ταξίδια ακούραστα και σταθερά.
Είμαι στη φάση που καλώς ή κακώς το πονάω και θέλω να το φτιάξω. Ρωτησα για βάψιμο και μου είπαν 120 όλα αλλά θέλω να αλλάξω ουρά και τεπόζιτο. Η ουρά έχε ήδη κοληθεί αλλά έσπασαν οι βάσεις πίσω στην ουρά με το κωλοφάναρο και το τεπίζοτιο έχει μία μπασά είχε πέσει σε γωνία κατακόρυφου τοίχου και έχει κάνει νέωρωση το μέταλλο κάτο απο το σήμα στη δεξιά πλευρά. Με παρέπεψαν σε ρεζερβουερά για το τεπόζιτο. Αν γνωρίζει κάποιος που μπορώ να βρώ μία ουρά και ένα τεπόζιτο με τιμές αν είναι δυνατό θα με βοηθούσε.
Ευχαριστώ εκ των προτέρων.

[GiannisBlessed]

γεια σου φιλε!
εχω και εγω μπροσακι και εχω μια επαφη με την μηχανη αυτη.
λοιπον για λαστιχα.
εγω εχω τα pirreli diablo με δεικτη για χαμηλη ταχυτητα.
ειναι καλα λαστιχα αλλα το 400ρι δεν τα ζεσταινε γρηγορα.
στο 650 ταιριαζουν καλυτερα.
ενας φιλος εχει βαλει τα bt-045.
ειναι αρκετα καλα λαστιχα και σχετικα φτηνα.
τα χρηματα που λες για βαψιμο ακουγονται αρκετα καλα.(ειναι καλη η δουλεια ομως που θα γινει?? απλα ρωταω)
για τα λαδια...δεν εχω βαλει ποτε ουτε μοτουλ ουτε κστρολ.εβαλα προσφατα τορκο και μου εχουν κανει καλη εντυπωση ως τωρα.
εβαλα τα απλα(ορυκτελαιου) που κανουν 5.5 το λιτρο.
οι βασεις της σελας ειναι ισως το πιο αδυναμο σημειο στην μηχανη μας.
οσα μπρος εχω δει ειναι σπασμενες.
καλυτερα να την επισκευασεις...
ελα απο εδω στην παρεα μας και θα βρεις λυσεις για ολα τα παραπανω.

υ.γ. εχουμε και γ@μw τις μηχανες!!

[Nikker]

Lubricants known as hydraulic fluid are used as the working fluid in hydrostatic power transmission. Hydraulic fluids comprise a large portion of all lubricants produced in the world. The automatic transmission's torque converter is another important application for power transmission with lubricants.
[edit] Protect against wear

Lubricants prevent wear by keeping the moving parts apart. Lubricants may also contain anti-wear or extreme pressure additives to boost their performance against wear and fatigue.
[edit] Prevent corrosion

Good quality lubricants are typically formulated with additives that form chemical bonds with surfaces to prevent corrosion and rust.
[edit] Seal for gases

Lubricants will occupy the clearance between moving parts through the capillary force, thus sealing the clearance. This effect can be used to seal pistons and shafts.
[edit] History

Romans used rags dipped in animal fat to lubricate wagon wheels; however the science of lubrication (tribology) really only took off with the industrial revolution in the nineteenth century.
[edit] General composition

Lubricants are generally composed of a majority of base oil and a minority of additives to impart desirable characteristics.
[edit] Types of lubricants

In 1999, an estimated 37,300,000 tons of lubricants were consumed worldwide.[1] The majority was for automobiles, but other industrial, marine, and metal work applications are also big consumers of lubricants. Although air and other gas-based lubricants are known, e.g. in fluid bearings), liquid and solid lubricants dominate the market, especially the former. Although generally lubricants are based on one type of base oil or another, it is quite possible to use mixtures of the base oils to meet performance requirements.
[edit] Base oil groups

Mineral oil term is used to encompass lubricating base oil derived from crude oil. The American Petroleum Institute (API) designates several types of lubricant base oil identified[2] as:

* Group I – Saturates <90% and/or sulfur >0.03%, and Society of Automotive Engineers (SAE) viscosity index (VI) of 80 to 120

Manufactured by solvent extraction, solvent or catalytic dewaxing, and hydro-finishing processes. Common Group I base oil are 150SN (solvent neutral), 500SN, and 150BS (brightstok)

* Group II – Saturates over 90% and sulfur under 0.03%, and SAE viscosity index of 80 to 120

Manufactured by hydrocracking and solvent or catalytic dewaxing processes. Group II base oil has superior anti-oxidation properties since virtually all hydrocarbon molecules are saturated. It has water-white color.

* Group III – Saturates > 90%, sulfur <0.03%, and SAE viscosity index over 120

Manufactured by special processes such as isohydromerization. Can be manufactured from base oil or slax wax from dewaxing process.

* Group IV – Polyalphaolefins (PAO)
* Group V – All others not included above

Such as naphthenics, PAG, esters, etc.

In North America, Groups III, IV and V are now described as synthetic lubricants, with group III frequently described as synthesised hydrocarbons, or SHCs. In Europe, only Groups IV and V may be classed as synthetics.

The lubricant industry commonly extends this group terminology to include:

* Group I+ with a Viscosity Index of 103–108
* Group II+ with a Viscosity Index of 113–119
* Group III+ with a Viscosity Index of at least 140

Can also be classified into three categories depending on the prevailing compositions:

* Paraffinic
* Naphthenic
* Aromatic

While lubricants for use in internal combustion engines may solely consist of one of the above-mentioned oil groups, it is not desirable in practice. Additives to reduce oxidation and improve lubrication are added to the final product. The main constituent of such lubricant product is called the base oil, base stock. While it is advantageous to have a high-grade base oil in a lubricant, proper selection of the lubricant additives is equally as important. Thus some poorly selected formulation of PAO lubricant may not last as long as more expensive formulation of Group III+ lubricant.

[edit] Vegetable (natural) oils and other naturally derived lubricants

These are primarily triglyceride esters derived from plants and animals. For lubricant base oil use the vegetable derived materials are preferred. Common ones include high oleic canola oil, castor oil, palm oil, sunflower seed oil and rapeseed oil from vegetable, and Tall oil from animal sources. Many vegetable oils are often hydrolyzed to yield the acids which are subsequently combined selectively to form specialist synthetic esters. Other naturally derived lubricants include lanolin (wool grease, a natural water repellent).

Whale oil was an historically important lubricant, with some uses up to the latter part of the 20th century as a friction modifier additive for automatic transmission fluid.[3]
[edit] Synthetic oils

* Polyalpha-olefin (PAO)
* Synthetic esters
* Polyalkylene glycols (PAG)
* Phosphate esters
* Alkylated naphthalenes (AN)
* Silicate esters
* Ionic fluids

[edit] Solid lubricants
Main article: Dry lubricant
[edit] Teflon or PTFE

Teflon(PTFE) is typically used as a coating layer on, for example, cooking utensils to provide a non-stick surface. Its usable temperature range up to 350°C and chemical inertness make it a useful additive in special greases. Under extreme pressures, teflon powder or solids is of little value as it is soft and flows away from the area of contact. Ceramic or metal or alloy lubricants must be used then.
[edit] Inorganic solids

Graphite, hexagonal boron nitride, molybdenum disulfide and tungsten disulfide are examples of materials that can be used as solid lubricants, often to very high temperature. The use of some such materials is sometimes restricted by their poor resistance to oxidation (e.g., molybdenum disulfide can only be used up to 350°C in air, but 1100°C in reducing environments).
[edit] Metal/alloy

Metal alloys, composites and pure metals can be used as grease additives or the sole constituents of sliding surfaces and bearings. Cadmium and Gold are used for plating surfaces which gives them good corrosion resistance and sliding properties, Lead, Tin, Zinc alloys and various Bronze alloys are used as sliding bearings, or their powder can be used to lubricate sliding surfaces alone, or as additives to greases.
[edit] Other relevant phenomena
[edit] 'Glaze' formation (high temperature wear)

A further phenomenon that has undergone investigation in relation to high temperature wear prevention and lubrication, is that of 'glaze' formation [4][dead link]. This is the generation of a compacted oxide layer which sinters together to form a crystalline 'glaze' (not the amorphous layer seen in pottery) generally at high temperatures, from metallic surfaces sliding against each other (or a metallic surface against a ceramic surface). Due to the elimination of metallic contact and adhesion by the generation of oxide, friction and wear is reduced. Effectively, such a surface is self-lubricating.

As the 'glaze' is already an oxide, it can survive to very high temperatures in air or oxidising environments. However, it is disadvantaged by it being necessary for the base metal (or ceramic) having to undergo some wear first to generate sufficient oxide debris.
[edit] Additives
Main article: Oil additive

A large number of additives are used to impart performance characteristics to the lubricants. The main families of additives are:

* Antioxidants
* Detergents
* Anti-wear
* Metal deactivators
* Corrosion inhibitors, Rust inhibitors
* Friction modifiers
* Extreme Pressure
* Anti-foaming agents
* Viscosity index improvers
* Demulsifying/Emulsifying
* Stickiness improver, provide adhesive property towards tool surface (in metalworking)
* Complexing agent (in case of greases)

[GiannisBlessed]

o φιλος προφανως θελει να βοηθησει...
αλλα εχει καποιες δυσκολιες μαλλον....
διαβασα παντως το αρθρο για τα λαδια...

edit: μεχρι να απαντησω καποια απο τα αρθρα βοηθειας εξαφανιστηκαν?