set timing

Reply Subscribe

Thread Tools

Search this Thread

Jul 7, 2007 | 07:32 AM

sdpuff

Thread Starter

New User

Joined: Feb 2007

Posts: 11

Likes: 0

From: blackcreek ga

set timing

my 87 150 4.9 i was setting the timing and i noticed that at tdc compression stroke the timing mark on the crank pulley was at 6 o'clock or at the bottom no where near the timimg plate that indicates btdc or atdc or tdc. does anyone know why? the truck runs ok but i want to make sure the timing is set right.

Jul 7, 2007 | 10:45 AM

netscaner

Elder User

Joined: May 2007

Posts: 754

Likes: 1

From: Solon, Ohio

If the engine runs, then your at the top of the exaust stroke on #1, not the compression stroke if it's at 6:00.

Jul 7, 2007 | 03:33 PM

sdpuff

Thread Starter

New User

Joined: Feb 2007

Posts: 11

Likes: 0

From: blackcreek ga

i put a cork in the #1 cyl hole and when it popped out and i assumed it was on the compression stroke

Jul 8, 2007 | 05:36 AM

sdpuff

Thread Starter

New User

Joined: Feb 2007

Posts: 11

Likes: 0

From: blackcreek ga

i corked it

Quote:

Originally Posted by netscaner

If the engine runs, then your at the top of the exaust stroke on #1, not the compression stroke if it's at 6:00.

I put a cork in the #1 cyl hole and when it popped out i assumed it was on the compression stroke. Is that wrong?

Jul 8, 2007 | 02:58 PM

vman

Elder User

Joined: Feb 2001

Posts: 657

Likes: 0

From: brimfield township,OH

somebody could have put the distributor in 180 degrees out.

Oct 13, 2007 | 01:15 PM

wizzard

New User

Joined: Mar 2004

Posts: 14

Likes: 0

If it was 180 out, it would not run correct?? he says the truck runs good just checking timing.

Oct 13, 2007 | 01:41 PM

subford

Fleet Owner

Joined: Aug 2005

Posts: 23,667

Likes: 301

From: Easton,Ks

He is looking at the wrong mark on the damper.

Trending Topics

This is prolly a 1 page thread at most

110.3k

6M
Odd knock/rattle at idle only after fully warmed up

27

360
vintage pics of days gone by

17.8k

1.7M
Adding a tail gate step

24

685
Another Crank no start -- sorry

18

205

Oct 13, 2007 | 05:24 PM

sdpuff

Thread Starter

New User

Joined: Feb 2007

Posts: 11

Likes: 0

From: blackcreek ga

theres a notch

Quote:

Originally Posted by subford

He is looking at the wrong mark on the damper.

theres a notch in the dampner and i unhooked the the pip spout connector and checked the timing and it just runs sluggish, and if you run it on the highway for about 20 mins. it wants to shut down and when you sit for a min. it will run fine. do you think its the ecm on the distrb. is it getting hot and shutting the truck down. id really like to get this thing running top notch if i could with no problems.