Burt has the spare ever been used on you BBC? I believe that is a low torque 153 tooth starter.
edit my bad that is 168 tooth starter
edit my bad that is 168 tooth starter
Last edited:
CK5
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Weak starter
- Thread starter Cadden
- Start date
Burt4x4
1 Ton First Gen
FYI ~ I am running a '74 454 block with stock '72 cast bell that is OEM 1972 SM465/350 so the '74 454 block has the starter mounts needed. I don't think my '72 350 block had this mount option,,, bell only! My brain is fuzzy so take w/grain-o-salt 
Burt4x4
1 Ton First Gen
Yep, in 2006 in MOAB of all places, my first starter fried,,, so I bought the one in the pic worked fine for the whole trip... then months later I upgraded to the Power Master version.. and now I pack this as my spare
Burt4x4
1 Ton First Gen
Further update. It only hangs up sometimes. Wonder if I just got a bunk starter from the zone.
I can get the truck started 4 times, it'll run and idle. Then the 5th time I've gotta fiddle with the starter drive.
I can get the truck started 4 times, it'll run and idle. Then the 5th time I've gotta fiddle with the starter drive.
I would bet that the starter is a problem. I have heard lots of stories about bad starters from Auto zone.
And I tried to use a Delco high torque direct drive starter on my old '72 K5 which had the original starter bolted to the cast iron bellhousing. The nose wouldn't fit into the bellhousing.
I believe that it's possible to bolt a high torque motor onto a cast nose for the existing bellhousing.
And I tried to use a Delco high torque direct drive starter on my old '72 K5 which had the original starter bolted to the cast iron bellhousing. The nose wouldn't fit into the bellhousing.
I believe that it's possible to bolt a high torque motor onto a cast nose for the existing bellhousing.
**update**
Its back to doing the same thing, even when jumping the starter with a screwdriver. So do I just have bad ground/electrical setup?
I bought new cables. Positive goes down straight to big lug on starter.
1 wire alternator i have going to same place on starter (big lug)
I have 1 ground going from intake to frame
And another ground going from engine (near fuel pump) to battery negative post.
And one additional ground going from frame to fender.
Then I have a ground strap going from back of the engine to the firewall.
These are all heavy duty battery cables
Its back to doing the same thing, even when jumping the starter with a screwdriver. So do I just have bad ground/electrical setup?
I bought new cables. Positive goes down straight to big lug on starter.
1 wire alternator i have going to same place on starter (big lug)
I have 1 ground going from intake to frame
And another ground going from engine (near fuel pump) to battery negative post.
And one additional ground going from frame to fender.
Then I have a ground strap going from back of the engine to the firewall.
These are all heavy duty battery cables
bp71k5
3/4 ton status
I was gonna X2 on the battery as it sounds like a classic example of one dying. Optimas are not what they used to be either, and that one is old.
The battery is very suspect. It's old, and I have had the old Optima batteries do well until all of a sudden, they won't put out enough amperage to crank it.
If you use another vehicle to jump start it, does it crank decently?
If you use another vehicle to jump start it, does it crank decently?
I had pulled the battery from my aztek that is pretty new, only a year or two old. But I couldn't get a strong enough connection.
I went ahead and just bought a cheap group 26 battery. So far so good, cranks strong.
Now onto a new issue. *sigh*
After the choke opens, it starts running real rough and will eventually just stall. Can't even get a stable vacuum reading while its running this way (bounces from 15 to 18 to 24 to 15 its all over the place in my handheld vacuum gauge).
Its got a holley carb 4160 series. It was sitting for quite a while, 6 or 7 years I believe.
I reset idle mixture screws (turned all the way in then 1 and 1/4 turn back out)
But it had no affect.
If I unplugged the choke. And don't let the plate open it'll run smooth and idle all day
After the choke opens, it starts running real rough and will eventually just stall. Can't even get a stable vacuum reading while its running this way (bounces from 15 to 18 to 24 to 15 its all over the place in my handheld vacuum gauge).
Its got a holley carb 4160 series. It was sitting for quite a while, 6 or 7 years I believe.
I reset idle mixture screws (turned all the way in then 1 and 1/4 turn back out)
But it had no affect.
If I unplugged the choke. And don't let the plate open it'll run smooth and idle all day
Well a Holley should be on the rich side, when normal, all things equal.
Since it runs with choke on. It is lean when choke opens.
Retorque intake, carb base, float bowls. Check all vacuum lines.
If nothing changes, carb probably has a blocked/restricted passage.
1 trick that might help is to hold rpm about 2500, and slam the choke butterfly closed for a second. If your lucky it will clear a restricted passage.
Try not to let it die while doing this it could flood out and be a bitch to restart.
Good luck let us know what you find.
Since it runs with choke on. It is lean when choke opens.
Retorque intake, carb base, float bowls. Check all vacuum lines.
If nothing changes, carb probably has a blocked/restricted passage.
1 trick that might help is to hold rpm about 2500, and slam the choke butterfly closed for a second. If your lucky it will clear a restricted passage.
Try not to let it die while doing this it could flood out and be a bitch to restart.
Good luck let us know what you find.
Well, tried the trick a couple times. And gave each moounting bolt a good snug turn. But then basically right after I had to shut it off and go run an errand. I'll see what happens later today and hook choke back up and go from there.
If that didn't help im gonna pull the carb and rebuild it
I've always had good luck with the Edelbrock carbs. Simple too. There's also the Holley Truck Avenger that handles steep angles but never owned one.
Did the starter issue get resolved? If not, I'd suggest the GM starter fix mod.
http://www.oldengine.org/unfaq/solenoid.htm
https://www.summitracing.com/parts/sum-g1750
Did the starter issue get resolved? If not, I'd suggest the GM starter fix mod.
http://www.oldengine.org/unfaq/solenoid.htm
https://www.summitracing.com/parts/sum-g1750
I have a 470 cfm truck avenger, according to holley it would work on my application, but just barely.
And yes starter woes are no more
