Ian Murray covered himself in all the glory when he scored a late winner to see his side through to the semi-final stages of the John Bell Pipeline Aberdeenshire Cup at the expense of the hark-working and well organised visitors.
Steve Dolan's threaded pass was inch perfect and wee Murray made an excellent job of finishing off the move with a trademark goal, his first competitive strike since re-joining the Banff club in the close season.
With just one change to Saturday's winning start to the campaign, Ross Bremner replacing the injured James Blanchard, Vale were out to end the run of their Aberdeen based rivals who were on an unbeaten fifteen game stretch which included picking up the Highland League Cup at the expense of the Banffers on the last day of last season.
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Cove started the tie slightly brighter than their hosts and Nicky Gordon flashed an early broadside with a first minute drive which drifted harmlessly wide of Ross Bremner's right-hand upright.
Steve Dolan, one of Vale's best performers on Saturday, failed to threaten Ross Buchanan when he fired weakly off target from the edge of the penalty box as Vale responded.
Bryan Dlugonski's well-struck drive flew well over and as the game swung to the other end Gordon also volleyed over the top after Bremner worryingly completely missed a John Brown corner.
Mike McKenzie should have put the Banffers one goal up when Ross McWilliam's cross from the right completely eluded Neil Cruickshank who rather strangely fell in a heap inside his own six-yard box but 'Mikee' failed to get any real power behind his back-post strike and Buchanan smothered his effort gleefully.
Scott Fraser's crucial last-ditch tackle denied Jamie Watt his second goal in as many games as he made good progress into the Rangers penalty box latching onto a Mike McKenzie defence splitting pass.
Watt was played in again minutes later but again was forced to pass up a scoring opportunity thanks to some more stout defending from the hard-pushed "Toonser's" defence.
Robbie Brown was rather fortunate not to collect his first yellow card of the new season when he scythed down name-sake John Brown at the edge of his own box, Scott Fraser surprised a few by taking the set-price ahead of Brown but saw his curling effort finish well wide of it's intended target.
Neil Cruickshank came nervously close to finding the back of his own net as he attempted to clear a McWilliam cross inside his own six-yard box but fortunately for the young defender the ball landed on the roof of the net rather than it.
A John Brown floated cross was very nearly turned home by Gavin Hendry at the back post but the ball drifted harmlessly ahead of the in-rushing midfielder who had made good ground with a late run.
Kenny Gilbert was cautioned for retaliating when he was taken out late by Gary Clark who was also shown the same colour of card by referee Alan Freeland and from the resultant free-kick Gilbert saw his header
hit the top of the Cove crossbar on its way over after Mark Chisholm had cushioned the ball into his assistant manager's path.
Half Time: 0-0
Ian Murray tested Buchanan with a curling effort which the keeper was right behind all the way as the second period opened brightly.
John Brown, who had swapped flanks ten minutes before the break, had a decent opportunity when he attempted to latch onto a deep Clark Bain cross but completely missed the flight of the ball as it flew across Ross Bremner's six-yard box.
A quick break saw Ross McWilliam pick up out Ian Murray inside the area but the pint-size striker pulled his effort over the top from a good position. Murray did even better moments later when he killed another McWilliam cross dead before firing goal wards but Hendry got back brilliantly to deflect the ball to safety.
Jamie Watt very nearly capitalised on a rare Bruce Morrison mistake but the veteran defender did just enough to prevent his side falling behind when got back to block "Jamie's" effort before Scott Fraser deflected the rebound which was fired goal wards by Mike McKenzie.
Ross Bremner tipped a deflected John Brown free kick over the top and from the resultant flag-kick Steve Dolan hacked a Nick Gordon hooked effort to safety.
As the game started to open up Mark Chisholm's whipped cross completely eluded Ross Buchanan's reach and landed at the feet of Ian Murray but Neil Cruickshank nicked the ball off the striker's toe just as "Molby" looked to pull the trigger.
Bremner was at full stretch to pluck a swirling John Brown drive out before it could nestle in the far corner before Gregg Carrol made a tactical change.
Mark Smith made way for Paul Urquhart and the swap saw Vale start to play a more controlled passing game and this was to make the difference as the tie reached the final stages.
Urquhart's mazy run was spoiled when the substitute fired weakly past the far post but the home support didn't have to wait much longer before they saw their side score a late winner.
Steve Dolan's defence-splitting pass found Ian MURRAY in an onside position in behind the advancing Cove rearguard and the diminutive number ten calmly stroked the ball beyond Ross Buchanan to send the delighted "Valley Crew" home with a smile on their face.
Full Time: 1-0
While Cove boss John Sheran thought his side did enough to win the close encounter opposite number Gregg Carrol had his own opinion, "It was a tough match as while Cove are difficult to play against we made things hard for ourselves by passing up decent chances when they came along".
"We had a number of them and I think we could have done better with the ones we created. You've really got to grind it out, and for spells of the game we were in complete charge without turning our superiority into goals but hey I'm not too disappointed as we're into the next round which is just as important".