» » »

Toyota Q&A

Ask Your Question

1990 Toyota Pickup Question: changed water pump now timing is off

 

Question

woodsman467, 3.0L V6, Blythewood, SC, January 29, 2009, 18:47
 Rookie

I replaced my water pump and had to remove the timing belt off the 2 cams to pull it, I thought that I put it back on in the same place but I guess not !!!! I didn't check I know Stupid right !!! can I get it adjusted without getting back to the belt!!! The truck will just turn over but will not crank!!!!!

2 Answers
Flag This
  • Medium-star Best Answer
    patrick mannion from Greg Solow's Engine Room, January 29, 2009, 22:50
    Profile_thumbnail
     Master

    To replace the water pump the timing belt had to have been removed. The ignition distributor timing should not have changed drastically if the timing belt was properly installed. Was the mark on the crankshaft timing belt sprocket aligned with the timing mark on the engine? The camshaft sprockets must align with the corresponding marks on the thin metal plate behind the camshaft sprockets. After the timing belt is installed, turn the engine over by hand and the marks and alignment rechecked. After installation when checking the ignition timing don't forget to bridge the two connectors marked T1 and E1 in the small diagnostic connector box on the passenger side of the engine compartment. With these two pins "bridged" the ignition timing should be 10 degrees when checked with a strobe timing light. The good news on the timing belt is that it is exceptional unlikely to have damaged the valves. You must properly realign the timing belt and not try to compensate by trying to mask the problem by changing the distributor alignment.

    Reply
    Flag This
  • Answer #2

    patrick mannion from Greg Solow's Engine Room, January 29, 2009, 22:50
    Profile_thumbnail
     Master

    To replace the water pump the timing belt had to have been removed. The ignition distributor timing should not have changed drastically if the timing belt was properly installed. Was the mark on the crankshaft timing belt sprocket aligned with the timing mark on the engine? The camshaft sprockets must align with the corresponding marks on the thin metal plate behind the camshaft sprockets. After the timing belt is installed, turn the engine over by hand and the marks and alignment rechecked. After installation when checking the ignition timing don't forget to bridge the two connectors marked T1 and E1 in the small diagnostic connector box on the passenger side of the engine compartment. With these two pins "bridged" the ignition timing should be 10 degrees when checked with a strobe timing light. The good news on the timing belt is that it is exceptional unlikely to have damaged the valves. You must properly realign the timing belt and not try to compensate by trying to mask the problem by changing the distributor alignment.

    Flag This
  • Reply

    23wesdxc, January 18, 2012, 23:15
     Rookie

    what happens if you your mechanic advanced the distributer as far as it goes would it run hot and have no power uphill

    Reply
    Flag This