Knocking Problem

[Zakrecony]

Well i just got the 90 GST and got it started tuday with my freand but the is One more problem we cant get.

When the car starts its dieing after few minutes and the RPM arent stedy but the main problem i got is Theres Very Hard Knocking coming out of the motor sounds like its comming from the timing belt area it sound like thats some big part of a matel hitting another part of the metal relly loud and the whole motor is shaking when its happining can it be a bad berring?

 

[blackbyrd]

Balance Shaft Bearing, my guess. If you haven't replaced your TBelt and pulleys and it's due, you might want to go ahead and do it. Buy a balance shaft block off kit, for like 30 bucks, should be fixed.
Your idle's probably just common idle surge, check your BISS screw first
vfaq:
http://www.dsm.org/how-tos/tttt/tttt3.html
http://www.vfaq.com/mods/wayback/BradBauer/engine/surge.html

 

[Zakrecony]

thx alot for good reply and great tip thx for helping

 

[andymoraitis]

Drop the oil pan and check for shavings (metal or brass). If you find some, it wouldn't be a bad idea to pull the rod bearings and check them as well. While the knock could be a spun balance shaft bearing, performing a balance shaft elimination won't help if the motor's succumbed to rod knock.

Good luck and keep us posted,

Andy