Engine Backfire Diagnosis Led to Wiped cam Lobes

[350runner]

http://m.summitracing.com/parts/cca-12-231-2
if this is the cam your are speaking of then yes it would be a good one note you will have a smooth idling engine... No more race truck lope. Those flat cam lobes spell your 3 month problem out clear as day... kinda like I told you in that pm. I really wouldn't take a chance at not getting the heads rebuilt. 1. Those springs are prob worn out 2.valve or two might be gunked up and sticking.

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[firebane]

And make sure any new cam you install you run oil with either zddp in it or as an additive unless you want flat lobe again

 

[Skweegle89]

85swb "Fancy"

http://m.summitracing.com/parts/cca-12-231-2
if this is the cam your are speaking of then yes it would be a good one note you will have a smooth idling engine... No more race truck lope. Those flat cam lobes spell your 3 month problem out clear as day... kinda like I told you in that pm. I really wouldn't take a chance at not getting the heads rebuilt. 1. Those springs are prob worn out 2.valve or two might be gunked up and sticking.

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What's the difference in this one and the one your running?


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[350runner]

Duration and lift numbers.

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[350runner]

Lil less intake duration, but pinch higher lift numbers

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[Skweegle89]

85swb "Fancy"

If I can find an engine stand the motor is coming out today. I want to take my time and do it right, and I really want to clean it up and paint it.


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[350runner]

Good deal. That cam will provide some serious low rpm torque and roast tires. I may do the same here shortly I'm really getting tired of these FN cold starts every morning. Really thinking bout going to the yard and getting an ls...

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[Skweegle89]

Good deal. That cam will provide some serious low rpm torque and roast tires. I may do the same here shortly I'm really getting tired of these FN cold starts every morning. Really thinking bout going to the yard and getting an ls...

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I don't want to go as far as dropping an LS in. So you think that cam that comp suggested is a pretty good bet? If all I am giving up is lope, then I don't care. I have listened to this thing lope in my driveway for so long without being able to drive it that I don't care if I never hear another lopey cam again lol.

 

[350runner]

Yea that cam is good to go. You'll feel the throttle response is totally different.

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[Skweegle89]

Can I re use things like rocker arms or should I go ahead and replace them?

 

[Skweegle89]

This is $75 cheaper on Amazon than it is on comps website. The kit their rep just tried to sell me was $554.52

 

[350runner]

You can if they aren't bent out shape. And same for those push rods...

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[firebane]

LOL I had 4 back rockers. I went to the pick n pull and grabbed 4 good ones for free LOL.

 

[Skweegle89]

mine seem to be ok. I will double check all of them. I am going to buy a whole new set of push rods. I will get the motor out today and with this nice weather coming this weekend, I will get the heads off and call the machine shop about getting them cleaned/fluxed and have the valves checked.

 

[Skweegle89]

Anybody run one of these or heard anything about them? It will eliminate my need for an adapter and its only $112. And its polished, and that just looks good.