|04-02-2013 09:13 PM|
As for a rebuild, right in march of last summer a buddy's 383 ate a big lunati cam like a week after it was broken in (yes incorrectly). He thru an old cam and lifters of unknown specs that I had kicking around from 100 years ago that had been hanging on my garage wall as art lol. Lifters miss matched and dusty and shtty in a Kleenex box. Did another "break in" just cause, and ran like 40 litres of bulk oil from our shop through it. Drove it all summer, put a ton of mileage on it and went 12.20's in a fully loaded G-body 84 Monte. Once in awhile you just get lucky.....
|04-01-2013 08:58 AM|
|lmsport||If the oil filter bypass is blocked, the bearings probably havent suffered at all.|
|04-01-2013 08:54 AM|
Thanks guys for the concern. I realize all the bearings are toast. Had to get this car running so I could move it. The C/R is too high was going to change pistons anyway. I needed to move the car out to my new garage to pull the motor. We might be possibly selling our house soon and this car hasn't left the drive way in 3 years. I realize the cam will be ruined as well but it was going to cost me close to a hundred to tow it and now I will be able to move it around until I have time to tear it down.
The cam bearings actually looked good I was very surprised. I don't even no how it ran with 3 complete dead cylinders and several others only getting the valves open half way!
|04-01-2013 08:04 AM|
|04-01-2013 07:30 AM|
4 months since last post,hope the engine came out of the car?
$90.ºº cam and lifters? I wonder how long they last?
|04-01-2013 07:04 AM|
|33Willys77||Do you realize all that metal has run through that motor? Your oil pump and bearings are going to be chewed up and you are going to be back in this motor again shortly. Once you have a cam go out (in your case a pretty bad situation), the engine will need to be cooked clean again. Someone should have steered you in this direction - there is still a lot of metal floating around in there - all those oil passages. How did the cam bearings look?|
|03-28-2013 06:25 PM|
Got the old cam out. New cam in. Front buttoned up. Just need to button up the top end.
|03-25-2013 06:49 AM|
Well got a new cam and lifters for the Caprice. Went with the Summit k1103. It was on sale and it cost about the same as it would for me to have the Caprice towed to my new garage so I figured what the hell. I know the bearings and what not may all need to be replace but at this point I would rather have the engine run then to have the car as yard art! Will get it installed in the next week or so hopefully when the weather we are having breaks. Will post the results up.
|11-29-2012 07:46 PM|
Hcompton that is not a bad idea. I really like the 700r4 idea. I will have to do some leg work. I don't really now any good junkyards in my area
|11-29-2012 05:48 PM|
|bj383ss||Bogie I do have the matched springs. The Roller stamped rockers were just a quick fix until I could buy full roller rockers but I never got around to it. They are 1.6 ratio though I think this also might have been a bad choice.|
|11-29-2012 05:36 PM|
|vinniekq2||I think if your cam was in the 440 lift area with a wide lda and mild duration,a near smooth idle and wide rpm range would be nice|
|11-29-2012 05:20 PM|
When you start getting up around .5 inch lift you also need to consider a stepped push rod guide to give more support closer to the rocker as that end with high lift is going to move a considerable distance from the point of support so any deflection of the push-rod will become increasingly magnified where it interfaces on the rocker as this distance increases. That will cause the rocker to want to wander off the side of the valve stem.
I'm not a fan of the simplified method of adjusting valves where you are skipping cylinder to cylinder and side to side doing multiple adjustments at certain crankshaft stations, this especially gets to be risky as the cam durations become longer simply because it is difficult to hit TDC accurately unless you go though the degree wheel and positive stop drill for every adjusting station which is a huge amount of work these simplified adjusting methods were developed to avoid for the flat rate mechanic. I highly recommend that one start at number one cylinder with both valves closed on the top of the power stroke and make you initial adjustments here then rotate the crank through the firing order in order and adjust each as they come up on the firing position. That insures the tappets are not on any part of a lobe. Where one uses older design performance cams with really long ramps leading to and from the action this is a big time problem to get accurate with simplified method. Cams like the XE, the Voodoo, and other similar modern cams where the ramps are short and the action quick are less likely to cause alignment problems on set up but if you're off TDC too much you will have big trouble as these cams come on the lobe really fast.
|11-29-2012 05:03 PM|
I realize I can't run a true stock cam. But if I keep the Edelbrock heads what is the smallest cam I can run? The Summit 1103 that Fbird suggested.
I'm not mad at it. I just have started to steer more towards stock style engines from the hot rod engines I use to love. I still love them just don't want to mess with it all the time. I don't even drive this car anymore because the tires are dry rotted from sitting outside for 8 years, the th350 has no second gear and the engine wouldn't even putt down the street. If I could have it all back like it was when I got it that would be awesome. But the cost of that would be too much right now.
I got excited when I found the broken pushrod as I thought I could get it running again for about $25 but that isn't the case anymore.
I have thought several times about parting out the entire car. I have a Camaro SS and now a 64 Chevy stepside. The Caprice is on the back burner. Its my first car and I just know that if I get rid of it someday I am going to regret it. I've had it since 95' and it was my moms car she bought it in 86'. So its been around since I was 8 years old. My wife even likes the car its what I was driving when were first dating. It died at a stop light on our first date and she had to help my push it over to the curb. LOL
|11-29-2012 04:19 PM|
|vinniekq2||then put in an appropriate cam to match the bigger engine.|
|11-29-2012 04:04 PM|
|bj383ss||No I'm going to keep the crank, rods, and possibly heads.|
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