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Also while doing t-belt. replace cam seal. inspect crank and intermediate shaft seal. if they leak it can ruin the belt = bent valves and other engine damage. Dont get T-belt too tight or intermediate shaft bearings will fail. Too loose you risk timing problems and utlimately head/motor damge.
either pop test the injectors or replace them along with the heat shield seals. see cliffs notes above what leaking injectors will cause.
I use a torque wrench that has been tested and verified. I treat them like the precision equipment they are and for the most part follow the specs from VW. Slightly tighter is better than slightly loose usually. Stretched, broken bolts and pulled out threads do suck just as bad as a part that falls off tho. From memory I think I do the 33ft lbs with a light coating of anti seize. Some folks like to use blue loctite. Mine have always been tight and slightly stuck on. Split the difference and call it 39?? lol. I will try to check the TDi spec against the IDI spec on that bolt tonight. Axle nut torque on Mk1 VW I go beyond what the book calls for on road race and autocross aplications to prevent wheel bearing failure. I also prefer to use german made parts for longevity.
yes, 80mph will make my 98 TDi get around 46mpg. towing a motorcycle at that speed is still 38mpg. Not driving like an A--hat I get 48-49 with it being chipped and non stock injectors.
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