Cam gear belt? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Scottrn · 03-16-2016, 01:50 PM

I have a new to me 65 c10, 250 three on column with overdrive. Original 292 came in the bed of the truck. I just freed it up, pulling off the timing chain cover and saw this. Was there a belt?
Eventually I would like to get to 292 back to stock and in the truck.

T and S · 03-16-2016, 02:01 PM

should be gear drive ( gear to gear), I have no idea what in the world that is !

frankslagoon · 03-16-2016, 02:09 PM

that's not good. don't turn the engine over anymore . the cam shaft isn't following the crank anymore and the pistons might find an open valve to bend. I don't know where the rest of that gear went but this is a bad deal. the engine has probably seen better days.

chevy_mike · 03-16-2016, 02:59 PM

Yeah, that's not a good sign. Never seen the whole gear missing like that.

Moving this to the Engine forum.

Scottrn · 03-16-2016, 03:05 PM

When I got it it was completely Frozen in the bed of the truck. That's why he put a running 2:50 in it, although it wasn't running well. I just replaced the distributor and it's running like a top but I would like to put the original engine in it. Going to have a machine shop look over the whole thing but I wasn't sure if there was a belt back in 65? Preciate you guys input. Definitely love these old in lines. Anyone have a picture what it should look like?

storm9c1 · 03-16-2016, 04:29 PM

It's a plastic gear. It's not uncommon for them to separate or melt at the hub like that after so many years, miles, and abuse. The previous owner probably pulled off the cover, saw the loose gear, scratched his head, pulled the gear off the shaft, set it on his workbench as a souvenir (or maybe to find another one and revisit later) and put the cover back on sans the gear. There is no way the whole gear just disappeared. It was purposely removed. It's huge like in the picture of the long block posted above. There is no timing chain or belt on an inline 6. Chances are that gear stripped with the engine running which also means the entire top end needs a close look.

Scottrn · 03-16-2016, 10:29 PM

Excellent, thank you so much for the picture. I will make sure they take a good look at the top end at the Machine Shop
thanks again

03-16-2016, 01:50 PM	#1
Scottrn Registered User Join Date: Apr 2014 Location: Groton Connecticut Posts: 15	Cam gear belt? I have a new to me 65 c10, 250 three on column with overdrive. Original 292 came in the bed of the truck. I just freed it up, pulling off the timing chain cover and saw this. Was there a belt? Eventually I would like to get to 292 back to stock and in the truck. Attached Images __________________ Be kinder than necessary, everyone you meet is fighting some kind of battle.

03-16-2016, 02:01 PM	#2
T and S Registered User Join Date: Dec 2013 Location: Oak Ridge, Mo. Posts: 301	Re: Cam gear belt? should be gear drive ( gear to gear), I have no idea what in the world that is ! __________________ If you don't like this pound sand .....

03-16-2016, 02:09 PM	#3
frankslagoon Registered User Join Date: Jan 2014 Location: Wasilla Alaska Posts: 537	Re: Cam gear belt? that's not good. don't turn the engine over anymore . the cam shaft isn't following the crank anymore and the pistons might find an open valve to bend. I don't know where the rest of that gear went but this is a bad deal. the engine has probably seen better days. Attached Images

03-16-2016, 02:59 PM	#4
chevy_mike Never Ending Projects Join Date: Jul 2006 Location: San Diego, CA Posts: 3,836	Re: Cam gear belt? Yeah, that's not a good sign. Never seen the whole gear missing like that. Moving this to the Engine forum. __________________ . 1965 C10 Panel, Tiki Express http://www.67-72chevytrucks.com/vboa...d.php?t=506580 SOLD 1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often...

03-16-2016, 03:05 PM	#5
Scottrn Registered User Join Date: Apr 2014 Location: Groton Connecticut Posts: 15	Re: Cam gear belt? When I got it it was completely Frozen in the bed of the truck. That's why he put a running 2:50 in it, although it wasn't running well. I just replaced the distributor and it's running like a top but I would like to put the original engine in it. Going to have a machine shop look over the whole thing but I wasn't sure if there was a belt back in 65? Preciate you guys input. Definitely love these old in lines. Anyone have a picture what it should look like? __________________ Be kinder than necessary, everyone you meet is fighting some kind of battle.

03-16-2016, 04:29 PM	#6
storm9c1 * That's interesting * Join Date: Oct 2008 Location: Pittsburgh, PA Posts: 2,772	Re: Cam gear belt? It's a plastic gear. It's not uncommon for them to separate or melt at the hub like that after so many years, miles, and abuse. The previous owner probably pulled off the cover, saw the loose gear, scratched his head, pulled the gear off the shaft, set it on his workbench as a souvenir (or maybe to find another one and revisit later) and put the cover back on sans the gear. There is no way the whole gear just disappeared. It was purposely removed. It's huge like in the picture of the long block posted above. There is no timing chain or belt on an inline 6. Chances are that gear stripped with the engine running which also means the entire top end needs a close look. __________________ Tom Chevy by day... 1969 Chevy C30 Rollback Tow Truck -- 383 stroker, 4L80E 2011 Chevy Caprice PPV 9C3 6.0L 1995 Chevy Caprice 9C1 1994 Chevy Caprice 9C1 #3 1995 Chevy Caprice Wagon #2 1995 Chevy Impala SS Mopar by night... 1969 Dodge Charger 1972 Chrysler Newport 2dr Hardtop (27K miles) Plus others... Last edited by storm9c1; 03-16-2016 at 04:39 PM.

03-16-2016, 10:29 PM	#7
Scottrn Registered User Join Date: Apr 2014 Location: Groton Connecticut Posts: 15	Re: Cam gear belt? Excellent, thank you so much for the picture. I will make sure they take a good look at the top end at the Machine Shop thanks again __________________ Be kinder than necessary, everyone you meet is fighting some kind of battle.



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