timing

**OPEN TECHNICAL HELP FOR ALL SWEPTLINE MODELS AND PROBLEMS**

timing

Postby olbill » Sat May 20, 2017 3:54 pm

hi, i am a first time poster and a beginner as well. my truck is a 1963 1/2 ton slant six 4 spd, single barrel carb which has rebuild date stickers still on it. i was told by the previous owner that the motor was rebuilt. looking at it, if they didn't rebuild it, they had it out and they painted it.
when i got it, it ran ruff and did not want to idle. i put a petronix module and coil in, new plugs, the old ones looked clean and new but i changed them anyway, new cap and wires, and new ballast. that made no change what so ever.
setting the timing has been impossible. although the marks and tab are visible when not running, they don't come together when running. i have the distrubitor turned all the way clokcwise just to get it to run like described
i've trien various positions with the firing order changing the wires one space in both directions and the best place has been the 1,4,2,6,3,5 order.



so what is wrong. i've thought bad distributor, distrubitor in wrong, timing chain off by a tooth or two? what do you guys think?
olbill
Sweptline.ORG Member
Sweptline.ORG Member
 
Posts: 7
Joined: Thu Mar 23, 2017 6:34 pm
City: tucson
State: AZ

Re: timing

Postby dodgeboykim » Sat May 20, 2017 8:03 pm

Start with basics. Valve cover off, Check valve lash clearances. TDC and check position of rotor for # 1. With valve cover off you can determine what the valves are doing. BASIC, BASICS first. SL 6 Distributor gear can be out a couple of teeth. It has a gear on it. :thinking :thinking :thinking :thinking
My truck is younger than me.
66 W100. 70 D 500 with 69 Hiab Speed Loader. 96 Ram 3500 Club Cab Cummin's 5 spd. 97 Ram 1500 Club Cab 5.9 gas auto. 83 W200 L/B 360 auto on propane.
User avatar
dodgeboykim
Sweptline.ORG Pioneer
Sweptline.ORG Pioneer
 
Posts: 2257
Joined: Wed Dec 31, 1969 6:00 pm
Location: chilliwack.
City: Chilliwack. B.C. Canada
State: Foreign

Re: timing

Postby HemiJoel » Sat May 20, 2017 11:17 pm

#1: When the timing doesn't make sense, always verify TDC. Get a piston stop and use it to find top dead center on #1. https://www.summitracing.com/parts/crn- ... /overview/ Always disconnect the battery and turn the motor by wrench when using a piston stop. Thread the stop into the #1 spark plug hole. Turn the engine clockwise until the piston hits the stop. Mark the damper. Turn the engine counterclockwise till the piston hits the stop. Mark the damper. Halfway in between the marks is true TDC.
Then you will know if the timing mark on the damper is accurate. They can move, because the outer ring of the damper (where the mark is located) is a separate piece from the hub of the damper, held together by rubber.

#2. THe dist has a vacuum advance. suck on it (with your mouth or a vacuum pump) If air flows freely thru it, it is shot, replace it. If it allows you to build suction, check for movement of the breaker plate when you suck on it. If it moves, good. If not, free it up or replace the distributor.

#3: When you check the timing, make sure that the vacuum hose or tube is disconnected from the distributor and plugged. Your timing at idle is with NO vacuum advance. Connect the tube after all the other problems are solved.

#4: check the valve lash. Your slanty has solid lifters, not hydraulic. The lash can tighten if the valves wear away the seats from unleaded gas. Lash too tight will make it miss and run horribly.



Handle these items and get back to us. Good luck, Joel
1968 D200 4 door 318 auto power steering
1966 D300 slanty 4 speed flatbed with Schwartz dump
1968 D200 crew cab project to become a longbed cummins dually
HemiJoel
Sweptline.ORG Member
Sweptline.ORG Member
 
Posts: 45
Joined: Wed Oct 19, 2016 10:43 am
City: buffalo
State: MN

Re: timing

Postby olbill » Sun May 21, 2017 11:09 am

ok, thanks for all the info. i'm off to find a piston stop. i'll post my results.
olbill
Sweptline.ORG Member
Sweptline.ORG Member
 
Posts: 7
Joined: Thu Mar 23, 2017 6:34 pm
City: tucson
State: AZ

Re: timing

Postby olbill » Mon May 22, 2017 8:55 pm

hey guys, thanks for the great advice. turns out it was the distributor. when the motor was rebuilt, they installed the distributor a couple teeth off. pulled it out and rotated it and presto! a nice smooth running slant six.
so anyone have a super six 2 barrel intake for sale?
any thoughts on if its i a better idea to go 4 barrel? i'm not building a race truck but i would like to get more power out of the slant six and still keep it as a daily driver.

thanks, its great having this source of info
olbill
Sweptline.ORG Member
Sweptline.ORG Member
 
Posts: 7
Joined: Thu Mar 23, 2017 6:34 pm
City: tucson
State: AZ

Re: timing

Postby MadMC63 » Tue May 23, 2017 5:43 am

Why settle?
cool.jpg
cool.jpg (66.61 KiB) Viewed 264 times
1971 Dodge D100
So what's wrong with setting beneath a single pull string incandescent light bulb writing angry letters?
User avatar
MadMC63
Sweptline.ORG Member
Sweptline.ORG Member
 
Posts: 624
Joined: Sat Nov 14, 2015 12:16 pm
City: Rome
State: GA

Re: timing

Postby olbill » Wed May 24, 2017 4:57 pm

too kool.
olbill
Sweptline.ORG Member
Sweptline.ORG Member
 
Posts: 7
Joined: Thu Mar 23, 2017 6:34 pm
City: tucson
State: AZ


Return to **GENERAL TECHNICAL HELP**

Who is online

Users browsing this forum: No registered users and 2 guests