Cam Bearing
Thread Starter
Burning Brakes
Joined: Feb 2010
Posts: 1,013
Likes: 2
From: California City Ca
Cam Bearing
I pulled my Old cam out it had 3000 miles on it to put a little hotter cam in it.
I found the front Cam bearing has some Galling of the left upper about 3/4 inch long Ya I know not good.
Can I replace the front cam bearing when the motor still in the car and Do they make a tool for this.
Or is it time to pull the motor Again.
Murphies law I telling you.
The car did not knock or anythng.
I found the front Cam bearing has some Galling of the left upper about 3/4 inch long Ya I know not good.
Can I replace the front cam bearing when the motor still in the car and Do they make a tool for this.
Or is it time to pull the motor Again.
Murphies law I telling you.
The car did not knock or anythng.
Former Vendor
Joined: Nov 2006
Posts: 2,482
Likes: 3
From: Carmichael ca
Probably not what you want to hear, but you should pull the motor. I'd check the rod and main bearings also. Damage to cam bearings is unusual unless it happened during installation or there was an oil pressure problem.
Thread Starter
Burning Brakes
Joined: Feb 2010
Posts: 1,013
Likes: 2
From: California City Ca
Ya that was I was thinking And a 383 Stoker kit only $700.00 On E-Bay Hint Hint.
New bearings crank rods.
But I dont want to buy anouther set of Injectors I like to use my 24s And will my cam I just ordered be to small for a 383 I am also in CA and have to play the smog game.
Lunati 60101 RPM Range 1000 to 5500 Lope sep 112 Lift .484 Ex .496 Duration 213/219@.050 Adertised 256/262.
If so I need to sent back as soon as it gets here.
Oh ya I figuring with flat top pistons and my 62cc heads I should be at 10.5 to 1 Ish you think that will be to much for a street motor on pump gas the heads are aluminum.
New bearings crank rods.
But I dont want to buy anouther set of Injectors I like to use my 24s And will my cam I just ordered be to small for a 383 I am also in CA and have to play the smog game.
Lunati 60101 RPM Range 1000 to 5500 Lope sep 112 Lift .484 Ex .496 Duration 213/219@.050 Adertised 256/262.
If so I need to sent back as soon as it gets here.
Oh ya I figuring with flat top pistons and my 62cc heads I should be at 10.5 to 1 Ish you think that will be to much for a street motor on pump gas the heads are aluminum.
Last edited by Marv02; May 19, 2011 at 11:24 AM.
Former Vendor
Joined: Nov 2006
Posts: 2,482
Likes: 3
From: Carmichael ca
I would definitely go bigger on the cam. My car has a LT4 Hotcam, 218/228, .525/.525 and passes smog no problem. Be sure your springs can handle that kind of lift. 10.5 is about the max you can go on 91 octane, but if you engine runs cool and the timing isn't too advanced it should be OK.
Thread Starter
Burning Brakes
Joined: Feb 2010
Posts: 1,013
Likes: 2
From: California City Ca
I will send the cam back then.
But I have to go with a reto cam and I also using the same intake and runners I dont want to go with a Mini ram.
But I have to go with a reto cam and I also using the same intake and runners I dont want to go with a Mini ram.
I would definitely go bigger on the cam. My car has a LT4 Hotcam, 218/228, .525/.525 and passes smog no problem. Be sure your springs can handle that kind of lift. 10.5 is about the max you can go on 91 octane, but if you engine runs cool and the timing isn't too advanced it should be OK.
Thread Starter
Burning Brakes
Joined: Feb 2010
Posts: 1,013
Likes: 2
From: California City Ca
I called Lunati Cams and asked the cam I have on order and it on it way how will it act in a 383 motor he said it will move my operating range of the cam down 100 RPM's and it should work fine.
I dont race the car but it will be a tourqe monster thats for sure what I want for the street.
so I have a RPM range of 900 to 5400 thats works for me Plus I am going to use 1.6 rocker arms that should help give it some more HP on top.
So it mite still end up beening a 1000 to 5500 cam.
I dont race the car but it will be a tourqe monster thats for sure what I want for the street.
so I have a RPM range of 900 to 5400 thats works for me Plus I am going to use 1.6 rocker arms that should help give it some more HP on top.
So it mite still end up beening a 1000 to 5500 cam.
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Not saying do it but have put cams in with farged front bearings and ran along just fine. (Knicks from removing/installing, little copper showing from wear). That Lunati rep is wrong ony changing effective range by 100.
10.5-1 is fine with aluminum heads too.
10.5-1 is fine with aluminum heads too.
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Thread Starter
Burning Brakes
Joined: Feb 2010
Posts: 1,013
Likes: 2
From: California City Ca
So how big of cam should I go with but I dont need a 7000 RPM screamer just a DD street car.
Race Director
Joined: Jun 1999
Posts: 14,924
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From: Merritt Ils Fl
Thread Starter
Burning Brakes
Joined: Feb 2010
Posts: 1,013
Likes: 2
From: California City Ca
Nothing new here in my life the simple thing are not so simpleafter all.
Like others have said what do the rest of the bearings look like if I have it apart mite as will I hate pulling the motor out and hows the crank look like ECT.
The time and money I could spend on redoing the 355 can cost about the same swapping over to a 383 and be done with it.
I just part out what still good.
Like others have said what do the rest of the bearings look like if I have it apart mite as will I hate pulling the motor out and hows the crank look like ECT.
The time and money I could spend on redoing the 355 can cost about the same swapping over to a 383 and be done with it.
I just part out what still good.
Thread Starter
Burning Brakes
Joined: Feb 2010
Posts: 1,013
Likes: 2
From: California City Ca
Thread Starter
Burning Brakes
Joined: Feb 2010
Posts: 1,013
Likes: 2
From: California City Ca
I only have the 2 motor mount botls holding it in now.
The next qusetion is why did it do this.
If the crank of rod bearing are bad I scrap them and make it a stroker.
I been looking at kits it going to be around $800.00 to dop it.
I know I need new cam bearings if I do go with the stocker I know I have to clearence the block for the crank and rods I know I should get the Cylinders a quick hone but I dont want to take any extra wall thickness off If I dont have to or can I get away with out honong the block I know it will take longer for the rings to seat.
Thread Starter
Burning Brakes
Joined: Feb 2010
Posts: 1,013
Likes: 2
From: California City Ca
Bearing UP date
Pulled the motor pull the pan.
Front main cap bearing Okay but could be better 2nd some marks no big deal 3rd Well, I could see alot of brass Hum the motor only has 3000 miles on it it has worn though the first coating already Not good.
If the motor was a old motor I could understand the worn parts but only 3000 miles I think it ws a time bomb waiting to happen.
It 385 time I not going to change it I dont want to pull the motor again any time soon.
Front main cap bearing Okay but could be better 2nd some marks no big deal 3rd Well, I could see alot of brass Hum the motor only has 3000 miles on it it has worn though the first coating already Not good.
If the motor was a old motor I could understand the worn parts but only 3000 miles I think it ws a time bomb waiting to happen.
It 385 time I not going to change it I dont want to pull the motor again any time soon.
Thread Starter
Burning Brakes
Joined: Feb 2010
Posts: 1,013
Likes: 2
From: California City Ca
What do you guys think run a quick hone my self I hate to pain a machine shop to do a 15 minute job just to scuff up it for the new rings.
Or screw it dont hone just put in as is I know it take longer to seat the rings but I dont want take metal off the cylinder wall if I dont have to
Or screw it dont hone just put in as is I know it take longer to seat the rings but I dont want take metal off the cylinder wall if I dont have to
Thread Starter
Burning Brakes
Joined: Feb 2010
Posts: 1,013
Likes: 2
From: California City Ca
More I tear in to it uglyer it getting.
Every main crank Journal on the crank has groves in it so far I have pulled 1 rod cap not bad looking so far semi.
I looks like it has a oiling problem to me.
Every main crank Journal on the crank has groves in it so far I have pulled 1 rod cap not bad looking so far semi.
I looks like it has a oiling problem to me.