Πιεση αξονα και αντλιων λαδιου.

Δημοσιεύτηκε Απρίλιος 6, 20179 χρόνια

...εγω ειχα βαλει αντλιες μαζι με εξπαντερ για να μην καιει λαδιβκαι ηταν κομπλε...

...γενικως καλο κανεις κακο δεν κανεις να τις βαλεις...

2

Αναφορά

Δημοσιεύτηκε Οκτώβριος 7, 20178 χρόνια

Στο παρακάτω βιντεάκι θα σας δείξω πως ελέγχουμε τις αντλίες λαδιού στην Royal Enfield και συγκεκριμένα τα έμβολα της αντλίας παροχής και επιστροφής.

Επίσης θα δούμε την οπτική διαφορά των αντλιών υψηλής πίεσης (μέγεθος και ποιότητα) του Χίτσκοκ σε σχέση με τις απλές ινδικές.

Τις αντλίες του Χίτσκοκ μας τις έδωσε ο Αντώνης Σταθάκης να τις δοκιμάσουμε σε κάποιο μοντέλο προ 2003 που δεν έχουν βαλβίδα εκτόνωσης στον στροφαλοθάλαμο. Διότι τις τοποθέτησε σε μοντέλο 2007 με αποτέλεσμα να καίει λάδια. Υποθέτουμε ότι με το να στέλνει 50% παραπάνω λάδι η αντλία παροχής, η βαλβίδα εκτόνωσης (η οποία ανοίγει στο 1,5 bar) στέλνει περίσσιο λάδι στον στροφαλοθάλαμο και η αντλία επιστροφής δεν προλαβαίνει να τον αδειάσει. Έτσι έχουμε την διαρροή από τα ελατήρια του πιστονιού.

Θα τις δοκιμάσουμε και σε ένα παλιότερο μοντέλο ελπίζοντας πως θα δουλέψουν σωστά.

Προσωπικά έχω βάλει αντλίες υψηλής (ινδικές) στην 350άρα μου μοντέλο 1999 χωρίς πρόβλημα.

Κάτι που δεν ανέφερα στο βίντεο είναι πως η πλάτη των αντλιών πρέπει να τριφτεί (με τον τρόπο που ενδείκνυται) μέχρι όσο το δυνατόν να γυαλίσουν σαν καθρέφτης και να σβήσουν οι ομόκεντροι κύκλοι.

Οδηγίες Χίτσκοκ για την αντλία παροχής:

Παράθεση

OIL PUMP REPLACEMENT, Part 200100

The feed pump carries the smaller diameter pump plunger, and is the one fitted at the rear of the timing cover. The disc should be a reasonably close diametrical fit in the housing, but the seatt between the inner face f the disc and the back of the timing cover is more important. This seating constitutes the valve which governs the whole action of the lubrication system, and if there is any leakage oh this bearing face the pump will operate inefficiently. r

It is recommended that this work is carried out with the= timing cover removed.

If there is any sign of scoring, the disc should be lapped in on the seating, using a small quantity of finest grinding compound mixed with oil and a little paraffin. If the scoring is very fine, using Autosol (metal polish) is an adequate substitute. In the outer face of the disc there are 2 small holes; these take the drive of the lapping tool.

Before refitting the new pumps ensure all traces of grinding compound are removed from the timing cover and oil ways. Assembly the pumps into the cover with the oil pump drive spindle but not the pump covers and springs. Thoroughly oil the pump bodies and spindle. Ensure the pump spindle rotates freely, in particular both pump plunger operate freely. Thoroughly clean the casting, re-assemble and test again.

Check the condition of the oil pump worm and spindle for excessive wear; also the condition of the oil pump disc spring, which should hold the cover off approximately 1/8 inch (3mm)

We also recommend the renewal of the oil feed seal and the relevant gaskets upon reassembly.

και για την αντλία επιστροφής:

Παράθεση

OIL PUMP REPLACEMENT, Part 200101

The return pump carries the larger diameter pump plunger, and is the one fitted at the front of the timing cover. The disc should be a reasonably close diametrical fit in the housing, but the seat between the inner face of the disc and the back of the timing cover is more important. This seating constitutes the valve which governs the whole action of the lubrication system, and if there is any leakage on this bearing face the pump will operate inefficiently.

It is recommended that this work is carried out with the timing cover removed.

If there is any sign of scoring, the disc should be lapped in on the seating, using a small quantity of finest grinding compound mixed with oil and a little paraffin. If the scoring is very fine, using Autosol (metal polish) is an adequate substitute. In the outer face of the disc there are 2 small holes; these take the drive of the lapping tool.

Before refitting the new pumps ensure all traces of grinding compound are removed from the timing cover and oil ways. Assembly the pumps into the cover with the oil pump drive spindle but not the pump covers and springs. Thoroughly oil the pump bodies and spindle. Ensure the pump spindle rotates freely, in particular both pump plunger operate freely. On a few occasions it has been noted that the pump plunger fouls on the pump body casting as arrowed on the diagram. If this happens the two points arrowed need to be relieved with a small needle file. Thoroughly clean the casting, reassemble and test again.

Check the condition of the oil pump worm and spindle for excessive wear; also the condition of the oil pump disc spring, which should hold the cover off approximately 1 /8 inch (3mm)

We also recommend the renewal of the oil feed seal and the relevant gaskets upon reassembly.