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Join Date: Jan 2006
Posts: 13
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timing belt
what would cause a timing belt to break on a 1985.5 porsche 944 non turbo i dont no very much about the car it has around 140,000 miles on some body help me
thanks zach |
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02-04-2006, 07:31 AM
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Virginia Rocks!
Join Date: Oct 2003
Location: Just outside the beltway
Posts: 8,497
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Age. Mileage. Too Tight. Manufacturing defect.
When was it last replaced?
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Rosewood 1983 911 SC Targa | Black 1990 944 S2 | White 1980 BMW R65 | Past: Crystal 1986 944 na Guards Red is for the Unoriginal
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02-04-2006, 08:16 AM
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about nine months ago
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02-04-2006, 02:47 PM
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Location: Brighton UK since 11/2012
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What was changed when the belt was done and did a Porsche repair shop, a "we do European cars shop" or the owner carry out the repairs? what caused the failure? Was it retensioned after 2000-2500 miles?
They rarely break without a mechanical failure of the tensioners, water pump or incorrect assembly. For any answers way more information is required.
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From November 2012; Precision Porsche Specialist Sussex UK, +44 (0)1825-721-205 2001-2012 Gerber Motorsport Inc. 206-352-6911 07.15.06 1996 Ducati 900SP. Suprisingly enough, it's red 08.16.09 1999 Kawasaki ZRX1100. Green. |
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02-04-2006, 03:20 PM
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Location: Ontario, Canada
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i'm betting you didn't retension the belts after 2000 miles.
if you did, how many miles was driven since then? as brit said, who did the work? was it a brand new belt 9 months ago? or just a simple retension?
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Kyle 2008 Mini Cooper // '83 Porsche 944 // '01 Mazda Protege [sold] // "Never break more than you fix!" - SoCal Driver |
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02-04-2006, 03:34 PM
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we did not have the car so i do not know the info i do know it was not a porsche mechanic
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02-04-2006, 03:40 PM
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Location: Ontario, Canada
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what documentation do you have that tells you it was done 9 months ago then? is it just the previous owners word?
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Kyle 2008 Mini Cooper // '83 Porsche 944 // '01 Mazda Protege [sold] // "Never break more than you fix!" - SoCal Driver |
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02-04-2006, 03:54 PM
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A t-belt will last about 30,000 miles or a bit over two years. If the belt was tensioned wrong when last installed such as too tight it will seperate as the webing is stretched from a hot expanded engine. If it's too loose and there is no metal fence on the water pump it can slap and hit itself on the water pump pulley and tear off teeth.
It is strongly suggested that when one aquires a "new" 944 that the timing and balance belts be replaced when there is a question as to when they were last replaced. It's cheaper that replacing eight valves.
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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02-04-2006, 04:20 PM
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Ok, who's betting the PO said the belt had been changed to make the sale?
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From November 2012; Precision Porsche Specialist Sussex UK, +44 (0)1825-721-205 2001-2012 Gerber Motorsport Inc. 206-352-6911 07.15.06 1996 Ducati 900SP. Suprisingly enough, it's red 08.16.09 1999 Kawasaki ZRX1100. Green. |
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02-04-2006, 04:43 PM
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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02-04-2006, 05:19 PM
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well, when i did mine, at feb, 2004, as noted on the fluid container with magic marker, i did not know that you should not push "TRIP RESET" while car is in motion. oops!!
it ads excitement to driving it when you keep the mileage in your head!! 
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chance favors the prepared mind 1987 944 n/a 5spd. who remembers dial phones?. 'STOP FIXING THINGS ONE STEP BEFORE YOU BREAK SOMETHING ELSE" |
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02-06-2006, 07:10 AM
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Gee Snap, you crack me up. Hopefully you changed it since Feb 2004. They make new gears for that you know and they aren't that hard to change. Don't ask me how I know!
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Tom 1990 944S2 Cabriolet 2002 Chevy Silverado 2500HD 2003 Maroon Ford F350 dually |
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02-06-2006, 07:33 AM
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i hope that t "snap" , "crackle" , and "pop"has nothing to do with my timing belt, valves, and engine!!!!!!!!
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chance favors the prepared mind 1987 944 n/a 5spd. who remembers dial phones?. 'STOP FIXING THINGS ONE STEP BEFORE YOU BREAK SOMETHING ELSE" |
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02-06-2006, 07:46 AM
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Yeah, me too. Been there done that too. Took it to the track on a belt that was time to change...paid the price! Never been back.
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Tom 1990 944S2 Cabriolet 2002 Chevy Silverado 2500HD 2003 Maroon Ford F350 dually |
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02-06-2006, 01:46 PM
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1983 Porsche 944 2.5 liter
1987 Porsche 944 2.5
