632 motor

[merc245]

HAHA WOW I guess we can see where this post is going. Well chassis man I see your not a motor man. Yes you can have issues with a motor with an aftermarket block...........but any good engne builder with high end parts like that will not have an oil problem like that. If there was it would have been taken care of after start up. But let me get this cleared up you guys pulled out a so called good 540 to put a so called used unknown 632 in????????? I mean lets see some picks then.

cuz this stinks real bad of B.S

so how was that 251 at 84 what else is done to the boat to handle that speed ??????????? what prop are you running?????

let me guess you have a #6 drive on it too right ???

THANKS, All we needed around was another Debbie Downer!THANKS AGAIN!

 

[jammasterj787]

Red your right about the drill and priming tool. I will not even start a new motor until oil comes up to the rockers and a drill works great.

 

[mkhammer]

Ok Here is what comes to mind. I will tell you what I know. Bad oiling can come from the rear cam bearing oil galley that's where the main oiling to the lifter galleys come from. Does this motor have a hydraulic roller or mechanical roller cam? Please don't don't tell me its a flat tapet in a motor like that. Isky makes the only mechanical lifter that is bushed that I know of and out lasts the others. Mechanical lifters can break under extended severe use and stress, seize in the lifter bore and start breaking things. Camshaft and lifter contact is lubed by oil splash on a wet sump. A roller hydraulic cam would be the correct choice for a engine like this.
Moving on... Other factors that may be destroying pushrods and top end components. Spring bind is another, Incorrect valve spring setup height.and Wrong pushrod length. If it is a Dart block lifter bores have to be honed in some cases during machining for proper clearance. Lifter sticking may occur, Cam lift to high no relief pockets in pitons.Valves hitting pistons, Poor oiling too wide of clearance in you oil pump but you would see that on you gage. Valve lash adjusted too tight will break stuff (l hope this mistake did not occur)
Scenario: Block was prior mechanical lifter engine oil galley restrictors were used. Now has life with the use of a hydraulic cam. restrictor were overlooked and not removed. lifters are seizing up and things are breaking. Camshaft installed wrong, valve timing off Valves hitting pistons breaking valve train . Just some things to look at.

It all boils down to poor machine work and engine assembly.

MKHammer

 

[Big Red]

Red your right about the drill and priming tool. I will not even start a new motor until oil comes up to the rockers and a drill works great.

I was thinking with the distributor out would it loose some pressure. I know it will on a small block. Its been a while since I had a valve cover off and using a primer. My valve covers are on 90% of the time when I do this.

 

[mkhammer]

I was thinking with the distributor out would it loose some pressure. I know it will on a small block. Its been a while since I had a valve cover off and using a primer. My valve covers are on 90% of the time when I do this.

Yes the cam turns the distributor gear the distributor shaft end turns the pump. Broke or sheared distributor gear would loose some pressure. But it would not run right or not run at all.Timing would be off

 

[mkhammer]

Big Red your approaching the big 3000

 

[checkmate632]

HAHA WOW I guess we can see where this post is going. Well chassis man I see your not a motor man. Yes you can have issues with a motor with an aftermarket block...........but any good engne builder with high end parts like that will not have an oil problem like that. If there was it would have been taken care of after start up. But let me get this cleared up you guys pulled out a so called good 540 to put a so called used unknown 632 in????????? I mean lets see some picks then.

cuz this stinks real bad of B.S

so how was that 251 at 84 what else is done to the boat to handle that speed ??????????? what prop are you running?????

let me guess you have a #6 drive on it too right ???

I tell you dude you have been a total asshole from the word go,i pulled the factory block out of the boat witch was a 540 that ran 89 mph with a roller in it ,and with a solid flattappet in it ,ran 84 mph,it had a 27 4 blade spanelie prop on it at 5600 rpm.the reason for changing it is because of fear of the block that is 19 years old,and trying to run in the 90+mph.the motor makes 913 horse at 6500 rpm and 829 torque at 5100..found the problem tonight with the oil problem, and that is a 700 dollar oil cooler.so save your insalts for someone elese because ill blow your ass off the river funny manand chassis man has some of the fastest street driven,and race cars in the area,that he has built the motors in,and the chassis work on as well.so who are you,to question anyone.its people like you that screw up threads with you insalts and BS.I came on here to ask a simple question,and all you try to do insalt me..Hope to see ta out on the river some time..................................

 

[mkhammer]

I tell you dude you have been a total asshole from the word go,i pulled the factory block out of the boat witch was kniw a 540 that ran 89 mph with a roller in it and with a solid flattappet in it ,ran 84 mph,it had a 27 4 blade spanelie prop on it at 5600 rpm.the reason for changing it is because of fear of the block that is 19 years old,and trying to run in the 90+mph.the motor makes 913 horse at 6500 rpm and 829 torque at 5100..found the problem tonight with the oil problem, and that is a 700 dollar oil cooler.so save your insalts for someone elese because ill blow your ass off the river funny man

I'm not bagging on your engine but I have seen race engines that developed a problem live on 15 psi and finish a race more than once in my 30 + years of boating and didn't break anything on the top end a bearing went bad. If a new oil cooler clears it up your lucky. when ever I see problems you describe its been bad engine machining setup. You asked in your original post so I am just throwing it out.

Just curious, If it is a oil cooler you must of seen spikes on you oil pressure gage or low pressure.

So what drive and prop are you running on this beast?

MKHammer

 

[Big Red]

I got confused where you turning the 27p to get 89 at 5600 with the roller cam

Impressive numbers from the dyno on the 632 I think thats the motor your talking about.

 

[mkhammer]

I second that, impressive numbers

 

[mkhammer]

Hey can you tell I just waxed my boat for my pic. pure carnauba. Gained an extra mile an hour from less wind drag.
just lightening the load,

 

[mkhammer]

check632

So I would sure like to hear more details about you boat.
Big H.P. what is your compression ratio like 12:1 ?
so what induction are you running? like what size carb or carbs or is it fuel injected ?
What drive do you run? and prop size 3 or 4 blade.
Sounds impressive I hope you found the problem.

 

[hotdaddy27]

THANKS, All we needed around was another Debbie Downer!THANKS AGAIN!

You are right Merc245....the guy comes on here for tech help and gets his azz handed to him after one post (by a guy with 50 posts no less).

I hope things work out for you Checkmate632!

 

[checkmate632]

So I would sure like to hear more details about you boat.
Big H.P. what is your compression ratio like 12:1 ?
so what induction are you running? like what size carb or carbs or is it fuel injected ?
What drive do you run? and prop size 3 or 4 blade.
Sounds impressive I hope you found the problem.

The motor is a 632 merlin 1 block,oliver rods,10.5 JE Pistons,its got fulley ported,Dart 360 heads,dart tunnel ram with race demon 775carbs that flow 980.It has a callies crank,with a solid comp cam,with shubeck lifters,with jesel shaft mount rockers.And by the way,i use turtle wax on mine,it does the trick

 

[Big Red]

The motor is a 632 merlin 1 block,oliver rods,10.5 JE Pistons,its got fulley ported,Dart 360 heads,dart tunnel ram with race demon 775carbs that flow 980.It has a callies crank,with a solid comp cam,with shubeck lifters,with jesel shaft mount rockers.And by the way,i use turtle wax on mine,it does the trick

913 HP with no boost and 10.5 on compression thats a killer
set-up you can't beat cubic inches. Was the oil cooler the problem on the oil flow

 

[jammasterj787]

hey sorry check632 after you listed your stuff i see its not b.s. hey did that motor come from sterling ? do you know if its a tall deck or short. lots of oil problems with the 10.2 deck motors. you prob have short deck with 632 cubes ??

 

[robwkamm]

has to be tall deck. i dont think you can build a 632 with out one. nice combo. post up some pics when you get her up and running. hows the boat handle at those speeds?

 

[ezstriper]

yes, has to be a tall deck to do a 632, if it has 70 psi OP and not oiling up the pushrods, something is wrong with the main or cam bearings or their installation...also be cautous of the rear cam journal and the rear cam bearing....don't think the oil cooler is your problem...Rob

 

[jammasterj787]

no most high end built motors have short deck with 5inch stroke for big cubes like that. i dont know if he has that set up tho.

 

[Big Red]

That BS I built a tall deck I just used 3 head gaskets