can,t set base timing

[black cat]

went to double check base timing.pulled the tan wire apart. put the light on no 1 wire and the marks on the damper are nowhere in sight. just put a new trans in and it shifts pretty hard. a friend said it looks like the damper must have spun. anyone else had this happen. thks pat

 

[wildphil]

Re: can,t set base timing

It looks like either your timing is off or the balancer did slip. Do you know how to verify if the balancer has slipped by finding top dead center?

 

[black cat]

Re: can,t set base timing

yah i borrowed a tool from an engine guy. it goes in the spark plug hole. roll engine one way till it stops then the other till it stops then split the diff on the har balancer. very accurate. i got it off it spun big time

 

[bdydrpds10]

Re: can,t set base timing

just finished changing mine, i could spin mine around. the timing kept moving on me when i was trying to set it.

 

[black cat]

Re: can,t set base timing

mine was off by about 45deg. good times

 

[wildphil]

Re: can,t set base timing

yah i borrowed a tool from an engine guy. it goes in the spark plug hole. roll engine one way till it stops then the other till it stops then split the diff on the har balancer. very accurate. i got it off it spun big time

Glad you found the problem.:tup:

 

[black cat]

Re: can,t set base timing

yeh that was the weird thing. mine is still really solid well i can,t turn it by hand anyway

 

[RenegadePete379]

Re: can,t set base timing

is there a timing connector similiar to what the tbi engines come with that you have to disconnect in order to set base timing? a tan and black thin wire?
where is it located on our trucks?

 

[chevy110]

Re: can,t set base timing

is there a timing connector similiar to what the tbi engines come with that you have to disconnect in order to set base timing? a tan and black thin wire?
where is it located on our trucks?

peel back the passenger side carpet and a tan wire should be low on the firewall.

 

[RenegadePete379]

Re: can,t set base timing

so on the interior of the truck then?

 

[chevy110]

Re: can,t set base timing

so on the interior of the truck then?

yup should be hanging down almost on the inside floor