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Old 03-20-2008, 08:50 PM   #1 (permalink)
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Exclamation 1995 Wildcat EFI 700 Motor Issues

I bought a Wildcat 700 EFI from my brother last December. I drove it 4 times short distances on the trails and a lake once (100mph+). I took it out for a trail ride around 40 miles and poooof! I blew the coolant out the cap (rubber gasket folded over) and overheated the sled... Smoked mag side, clutch side still good at 130psi. Mag side rebuild by Northland Snowmobile in Sudbury, ONT. Lasted 8 miles. Back to Northland, down to 100psi on clutch side and complete melt down on the mag side again. I noticed on the reciept they added oil to the gas for break-in... the 95 Cat manual on page 5 indicates "don't add oil to gas for break-in" They have had the machine now 5 weeks, found out owner was trying to aquire used engine to rebuild mine; I remember paying for new parts Owner now telling me the machine is fixed, pick it up, and I own the sled, he's not in business to loose money and the 700 EFI Cats are junk, he will not warranty the work if it melts down again
Scared to run it, can't afford to rebuild again, anyone want to help with the oil issue, owner claims that oil doesn't hurt, he's rebuilt thousands of machines, and the junk issue?

New to sledding, love it, hate my CAT, want to run it, bought 06 Apex in Feb, love it!
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Old 03-20-2008, 11:22 PM   #2 (permalink)
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Service manual says to start the engine and with a wire hook, hold the oil pump lever at wide open for 3 to 5 min.
Then run the engine at speeds not exceeding 1/2 throttle for the first tankful of gas and occasional short bursts at higher rpms.
With an EFI, it is recommended that you never mix the fuel as the oil will clog the smart valves.
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Old 03-21-2008, 07:49 AM   #3 (permalink)
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i live in sudbury, i take my sled to nick's cat house in espanola great servic there they really know there sleds!!! i hafto say iv never had good service in sudbury!!!!!!!!!
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Old 03-21-2008, 08:43 AM   #4 (permalink)
06 Apex 103mph on GPS
 
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I've heard that about Nicks Cat house, they serviced this sled 6 years ago when the clutch seized up on my brother and tested the computer and the sled ran for 5 years NO ISSUES, now won't run 8 miles? Northland say's they can't trouble shoot the machine and it could be the computer at 1000$'s, that there is no way to test the computer... I think Northland is a parts changer, they don't know how to perform maintenance anymore...
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Old 03-21-2008, 11:41 AM   #5 (permalink)
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could be your oil pump!!! did it heat up last time or did it sease up?
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Old 03-21-2008, 12:50 PM   #6 (permalink)
06 Apex 103mph on GPS
 
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Heater up first time, blew coolant out rad cap, rubber gasket folded over, machine at 130 / 0psi (mag side).
Brought to Northland - rebuild $830.00 - they topped up oil, "starts & runs good", tested out at 130 / 130psi.
per invoice; new pison, cylinder, filled antifreeze & bleed, added oil to gas...
When burnt down the second time oil was noticible lower after the 8 miles but at 100 / 0psi (mag side).
Could oil in the gas do this? According to Northland they drained the gas (made no meantion of water), only defending the very little oil that they put in the gas for break in.
What would cause a complete burn down rings, piston, cylinder in 8 miles on the same side, rode the trail from Lively to Naughton, then on the lake for 1 mile befor the poooof.
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Old 03-21-2008, 01:21 PM   #7 (permalink)
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i dont thing the extra oil would do that! did they rebuild only the top end? there mite be isues with the crank? you wherent doing 100mph i hope!! got to let it break in
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Old 03-21-2008, 08:45 PM   #8 (permalink)
06 Apex 103mph on GPS
 
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I left from Lively to Naughton on the trail, burping anywhere from 20mph to 50mph for about 7 miles, then on the lake, up to about 50mph (80km actually) then slow it down to stop, start again, burping nicely got up to about 70km slowed it down always little burps... third time was up to about 80km again when I looked down and then... poooof..!
The first time she blew I asked the (company who I'm tired of naming) to look the motor over for me, and do both sides if necessary (open wallet) they told me only the one side needed to be done, they meantion on the original receipt "cleaned crankcase" but thats all. They conveniently waited until the snow is almost gone for the machine to be ready (5 weeks). I'm picking up tomorrow AM, should I be asking them questions...? The owner is acting like a moron, I'm the one out, I never even raised my voice or expressed any anger, and I'm being treated like crap! I'll never recommend these guys to anyone, if I need parts changed I can have the neighbours 12 year old daughter spin the wrenches, if I need mechanical trouble shooting I'll go to a reputable dealer who has respect for there clients.
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1995 Wildcat 700 EFI (trouble)
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Old 03-22-2008, 07:37 AM   #9 (permalink)
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It's rare that the mag side will burn down unless there is a bad seal. Either the center seal or the mag side crank seal. Did you check the plug color after the first time?
I have found that after and engine has been overheated, it's usually a good idea to do a complete overhaul which includes the base gaskets and crank seals.
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'90 Wildcat Project in progress.

Vintage (sorta)
1980 Indy Trail 440 (for sale)
1980 AC Pantera (donor engine to the 90 wildcat)


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Old 03-22-2008, 07:58 AM   #10 (permalink)
06 Apex 103mph on GPS
 
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First time I pulled the plugs on the trail, these were replaced in Dec 2007, the plugs looked fine, maybe a little gummy. I was later told it could be the seals... I ask why wouldn't they change the seals when the machine was in?
I brought in a machine I wasn't farmiliar with, plus I don't have a garage at home, and I make more $'s per hour that they charge out their mechanics; I asked them to find the problem and rebuild if economical, they did neither! I checked the original receipt which makes no meantion of seals in the description or parts list!
I hope they did the seals this time, I'll update after I pick up this AM. I'm stressed out about this machine!
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Old 03-22-2008, 08:43 PM   #11 (permalink)
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There could be issues from the first blow up! You need to figure out why did it go the first time, or it will over and over! Pick it up ask them what all they found and did! If money isn't a problem then take it from there to the other guy, fill him in completely and ask him to look it over! I did a complete crank up rebuild on both my 88 and 91 after my buddy blew his 88 up! He took out the oil/ water pump shaft seals!
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Old 03-23-2008, 04:05 AM   #12 (permalink)
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Gummy as in sludge, or as in a dry dark crusty buildup?
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'93 Wildcat 700EFI
w/ Comet 108 Pro-4 clutch & 01 ZR skid

'90 Wildcat Project in progress.

Vintage (sorta)
1980 Indy Trail 440 (for sale)
1980 AC Pantera (donor engine to the 90 wildcat)


http://www.dcdrifters.net/


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Old 03-23-2008, 10:53 AM   #13 (permalink)
06 Apex 103mph on GPS
 
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I picked it up yesturday and the lady said she knew little, only that the cylinder, piston and rings were changed again and NO Warranty... according to her the mechanic took the machine on the lake and ran more than the 8 miles it took to blow up last time... funny thing, they must have unplugged the odometer!!!!!!!!!!!! Gummy as in a little gas/oil, not white, not black, but grey/white crystals of piston on the electrode from the poooof. I'd rather get rid of it then spend more money... I'd buy a second 2005/2006 4-stroke at 6k then spend another 1k (plus the 3k to buy and fix so far). This machine has no value to me. It's hard to diagnose a problem when the service place won't give you any details, only replace parts and have a 16 year old girl explain it to you! Never again.
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2001 Amber Fire Dakota Ext Cab
2007 Mazda 3sport for wife
2006 Apex GT 4-stroke
1995 Wildcat 700 EFI (trouble)
In the market for summer toy; possible waverunner
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Old 03-24-2008, 07:39 AM   #14 (permalink)
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Have you spoken to the tech about it?
It seems to me that it's time to find another place to do business since they don't do a very good job at customer service and will not warranty a repair. I'll bet that if you spoke to the regulating agency that gives them their business license, they would cover the repair if it happens again.
__________________
Old Cat Rider
'93 Wildcat 700EFI
w/ Comet 108 Pro-4 clutch & 01 ZR skid

'90 Wildcat Project in progress.

Vintage (sorta)
1980 Indy Trail 440 (for sale)
1980 AC Pantera (donor engine to the 90 wildcat)


http://www.dcdrifters.net/


Worshipful Master; F&AM Dryden Lodge# 472
http://www.masonicdryden472.org/

Rules of this forum are strictly enforced!
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