350 Engine help
Thread Starter
Drifting
Joined: Sep 2006
Posts: 1,387
Likes: 30
350 Engine help
Been working on my friends reman. Jasper 350. We put on the Holley System Max kit he bought for Summit racing, supposed to be good for 425 Hp. Anyway, we finished up, now we have some issues...now it'll start but won't go past about 400-600 rpm. We float tested the carb, and fixed that, but it is still not going past about 600 rpm no matter what we do. We put the old carb back on, same result. It'll try to idle for about 15-20 seconds and then it dies. No vacuum leaks we found, and we are out of ideas. The timing shouldn't be that far off right now. What the heck is wrong?
Thread Starter
Drifting
Joined: Sep 2006
Posts: 1,387
Likes: 30
Thread Starter
Drifting
Joined: Sep 2006
Posts: 1,387
Likes: 30
Thread Starter
Drifting
Joined: Sep 2006
Posts: 1,387
Likes: 30
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Racer
Joined: Apr 2006
Posts: 450
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From: Alexandria Va
I assume your working on a C3 that you just put an engine in. Make sure the rubber fuel line from the tank hard line to the fuel pump is not kinked or bent. It's is normally a prefabbed "S" formed line and if not installed correctly can bind and starve the engine. This happend on my engine I just installed. Took me a while to fugure out. Good luck.
Thread Starter
Drifting
Joined: Sep 2006
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I think i will send that his way, I took a look at it before I posted it seems pretty thorough but wasn't sure what I was looking at.
Thread Starter
Drifting
Joined: Sep 2006
Posts: 1,387
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Also, what if we have the cam gear and crank gear in wrong? Like the dots were lined up down the middle, but instead of them being so they are right next to each other, we had them so each one was at the top in the middle. (ie still in a straight line, with both pointing up, but not touching. The reason we did this is because thats how it was when we took off the old ones. We used double chain set to replace. I see in some directions that the cam gear is usually having the dot at the bottom middle of the gear with the crank gear at the top middle so they touch. Maybe thats the culprit?
Thread Starter
Drifting
Joined: Sep 2006
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I can't see your picture at work, but I think I know what its going to be. The marks are 12 oclock for the crank gear and 6 oclock for the cam gear. His are set at 12 oclock for both. So, that being the case, does that explain why his engine is not working correctly? I just find it odd that the one we took off was at 12 and 12 oclock for both too, yet it ran fine. Different manufacturing guidelines maybe???
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
I can't see your picture at work, but I think I know what its going to be. The marks are 12 oclock for the crank gear and 6 oclock for the cam gear. His are set at 12 oclock for both. So, that being the case, does that explain why his engine is not working correctly? I just find it odd that the one we took off was at 12 and 12 oclock for both too, yet it ran fine. Different manufacturing guidelines maybe???
You said earlier that the engine was 180 degrees off, and the timing gear being 180 off corresponds with that.
Get the gears so the cam gear mark is at 6 and the crank gear mark is at 12. The, rotate it to top dead center on #1, make sure your balancer timing mark is at 0, and drop the distributor in so the rotor points to the contact plugged into plug #1.
Then, follow each wire around the distributor clockwise, and make sure they all go to the plugs in the proper firing order.
Thread Starter
Drifting
Joined: Sep 2006
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Ha I knew it! See, these stupid directions have been wrong before, but this is blatently bad. It even tells you on page 9 of this stupid thing to have them both 12 oclock. But I have NEVER EVER EVER seen anything that said that besides this. Its always 12 oclock for crank, and 6 oclock for cam. Holley sux the big one for having such horrible directions. I can't believe they do that. Check the directions out below. They do say 12 oclock for both. But this is wrong clearly.
http://static.summitracing.com/globa...-1%282%291.pdf
http://static.summitracing.com/globa...-1%282%291.pdf
Drifting
Joined: Aug 2007
Posts: 1,924
Likes: 6
Ha I knew it! See, these stupid directions have been wrong before, but this is blatently bad. It even tells you on page 9 of this stupid thing to have them both 12 oclock. But I have NEVER EVER EVER seen anything that said that besides this. Its always 12 oclock for crank, and 6 oclock for cam. Holley sux the big one for having such horrible directions. I can't believe they do that. Check the directions out below. They do say 12 oclock for both. But this is wrong clearly.
http://static.summitracing.com/globa...-1%282%291.pdf
http://static.summitracing.com/globa...-1%282%291.pdf
2. Did you have any trouble setting the valves (initial static)
Instructor
Joined: Jun 2005
Posts: 156
Likes: 0
From: Liverpool NY
When I installed my new cam and timing gears I had the timing advanced 15 degrees on the crank but set the gears for no advance...check this closely. I was positive I had these set correctly, but alas a little more wrenching and problems solved.
Racer
Joined: Feb 2007
Posts: 262
Likes: 2
From: FREDERICKSBURG VA
It doesn't matter if the dot is at 6 o'clock or 12 o'clock, it seems small block chevy cams come both ways, so you're either at top dead center on #1 or 180* out & tdc on #6. Just put your finger over the #1 spark plug hole, & when #1 is coming up to tdc on compression it will blow air out past your finger, now with the timing mark at 10* before tdc put the distributor in with the rotor on #1.