Vehicle: 1986 E-350, 4.9L 300 6 Cyl auto trans/ac
New long block.
Doing something wrong, Brought number one piston all the way up to tdc on compression stroke , had notch on harmonic balance pulley at zero, installed distributor with rotar pointing towards number one spark plug wire.
Backfired, moved distributor from full advance to full retard.
please help.
Just installed a new reman long block from Marshall rebuilders.
Can't start the engine, stopped work at 9:00 pm pst.
Looking to get back to work in the morning.

 

well it seems you missed one big step, you forgot to make sure it was on the compression stroke when you brought it to TDC. so you are 180 degrees off.

 

Thanks for your reply
When I brought the piston all the way up,does the piston come all the way up on both the compression stroke and the exhaust stroke? Thanks for any help

 

yes it does. you need to make sure both valves are closed that will tell you if in fact it is on the compression stroke

 

Thanks, I think I must hold a cork or finger in the spark plug port, then have someone hand crank the engine. Does air force its way out only on the compression stroke?

 

How do I know when both valves on number one are closed? thanks

 

you can pull the valve cover or place your finger over the spark plug hole and crank the engine until you start to feel pressure building. then bring it to TDC on the balancer and reset the dizzy.

 

Thanks for your help, my Son and wife will be so happy tomorrow because of your help.

 

I'll be 62 years old on 4-16-06, and we're helping my 32 year old son get his 1986 E-350 running.
This my first engine pull and install, I bought a 8 ton ram cherry picker, HD engine stand, 20 gallon wash table.
With your help tomorrow I'll complete the install.

thankyou again

 

Glad to be of help! Please come back anytime.

mike

 

Mike,

thanks again,

AL

 

no problem AL! report back on how it goes and if you need anymore help.

 

Threads merged and moved to Inline 6 Engine forum.

-Matt

 

hello blueknight44. im also going to drop a new distibutor in my 89 300 six efi saturday. I thought my trouble was fuel. i changed the filter ahead of my high pressure fuel pump . no luck. changed the filter behind it just yesterday and still no luck. my truck fired up for abought 2 sec's then shut off. no fire from my dist.. or its the ign module... anyway just post back how it works out if you will. may need some tips myself.. toyota88... thanks goodluck..

 

I was 180 degrees out, I wasn't on the compression stroke, with the help from many the engine now runs.
Thanks you all,

AL