Slow cranking Allis WC

48C-MAN · Feb 10, 2011

I have a 1941 WC that cranks over slow. Usually will start but barely when really cold. Has new 1ga. batt. cables new batt.(6V) and freshly rebuilt starter. Could timing be advanced to far or is there other things to look at or for? Thanks for any advice. Jeff

BCnT · Feb 10, 2011

try 0 or 00 cables
1 ga is for 12 volt systems

CLTX · Feb 10, 2011

As BC said, go with 0 or 00 cable. I would go with OO and be sure to have soldered connections. Be sure your posts are clean and that the ground cable attachment is clean. Be sure your battery is of adequate size.

old · Feb 10, 2011

As the others have said you need bigger cables. Ones as big as your thumb no less then that or double what you have and that might work

dandeere · Feb 10, 2011

Try cleaning up where it mounts to the engine, I think thats how it is grounded or positived as the case or allis my be!! Dan

CCer · Feb 10, 2011

Modern "rebuilders" may not be as good as the "old-timers". It is important to undercut the mica, was this done? There was a tool to do this, or it can be done by hand. The armature surface where the brushes contact, MUST have the mica insulators, dividers between the copper segments, cut below the level of the copper, about 1/32". A hacksaw blade segment, or possibly a dremel tool could be used.

teddy52food · Feb 10, 2011

If it kicks back or stalls before TDC, then the timing may be advanced. Usually happens when someone timed it by ear.

Faster346 · Feb 10, 2011

Another thing, make sure your grounds are SHINY. I put a new 6v battery, new 0 gauge cables, and new starter switch on my M, and it still turned over slower than a snail. I finally took a small angle head grinder with a 36 grit pad to all the ground connections (battery to chassis, starter hookup, ect) and it spun right over like it should when everything was hooked back up.

36 Coupe · Feb 11, 2011

You do not undercut the mica on starters.Sharp edges of the commutator bars will smear the brush material and pack the grooves with copper.

36 Coupe · Feb 11, 2011

Your WC is not going to turn over like an import car with a gear reduction starter.Avanced timing will not make an engine turn slower.The type of oil you have in it can make a difference.Holding the clutch down while cranking can help crank speed.

Slow cranking Allis WC

48C-MAN

Member

BCnT

Well-known Member

CLTX

Member

old

Well-known Member

dandeere

Member

CCer

Member

teddy52food

Well-known Member

Faster346

Member

36 Coupe

Well-known Member

36 Coupe

Well-known Member

Similar threads