CLEVELAND ENGINE TALK

[CHESTNUTXE 7,310]

I finally got a 5/16 bit to undo the gallery plugs for years i battled with a normal allen key

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Him modified is on the stand and 1st thing i notice is the dipstick is blocked off or non existent as the f trux had the dipstick in the sump hmmm and under all that crap is a nice late model block thats definitely a cf stamp

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[CHESTNUTXE 7,310]

Him modified is on the stand and 1st thing i notice is the dipstick is blocked off or non existent as the f trux had the dipstick in the sump hmmm and under all that crap is a nice late model block thats definitely a cf stamp

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Got heaps done and here is that tiny block off for the dip stixk,i also found 1 broken bolt

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[deankxf 20,287]

On 8/6/2021 at 3:56 PM, CHESTNUTXE said:

i will take it to olm8 on monday if lockdown is over 4pm sunday and get him to do his trick on it.

surprising your lockdown should be lifted.. if anything like Melbourne, get everything done fast.. won't last..

[CHESTNUTXE 7,310]

surprising your lockdown should be lifted.. if anything like Melbourne, get everything done fast.. won't last..

Today i did some more cleaning work to get the block ready and im seeing a few things different in the casting to the earlier blocks as this one is a 1980 its a very late 400 block and the last revision as it has some little oil drainback difference mainly to unobstruct the flow back to the sump also cleaned the caps and it has CF cast into every nookie on this anchor

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[CHESTNUTXE 7,310]

Today i did some more cleaning work to get the block ready and im seeing a few things different in the casting to the earlier blocks as this one is a 1980 its a very late 400 block and the last revision as it has some little oil drainback difference mainly to unobstruct the flow back to the sump also cleaned the caps and it has CF cast into every nookie on this anchor

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Just loading up the block and my new set of crome covers came

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[CHESTNUTXE 7,310]

I TOOK the block down and first thing he said was that block has more lip than mick jagger,but should clean up nice at 040,he fixed the broken bolt in 5 mins,and then took the cam bearings out,now into the tank for a few days before boring and honing,hopefully by friday i can pick it up and paint it .

[CHESTNUTXE 7,310]

I TOOK the block down and first thing he said was that block has more lip than mick jagger,but should clean up nice at 040,he fixed the broken bolt in 5 mins,and then took the cam bearings out,now into the tank for a few days before boring and honing,hopefully by friday i can pick it up and paint it .

Hey does anyone know why these 2 main cap bolts are stepped ? Only just noticed this after cleaning

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[Outback Jack 6,352]

Would they be the bolts for the centre cap or front? Just check the castings in the bolt holes of big end caps.
ARP new bolts would be cheap insurance on the big ends and mains.

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[CHESTNUTXE 7,310]

i showed the machine shop and he said the bolts even tho stepped are no different to all the other ones ? so i might just do some googling to make sure.

[CHESTNUTXE 7,310]

ok i jumped on a usa 4x4 trux forum and this is what this engine was a big ass 4x4 f truck engine,but in saying that the only difference is that dipstix that is blocked off and the 4 x 4 sump has the dipstix going into it,but no mention of 2 stepped main bolts.

[bear351c 10,270]

You'll prob find the stepped bolts were to hold a windage tray/stud girdle/accessory/oil strainer

 

in the sump.

[CHESTNUTXE 7,310]

bear the thing is there is a special main bolt for this ,the oil pick up tube .

[bear351c 10,270]

Fair enough.  Clevo bolts fit.??

 

[CHESTNUTXE 7,310]

Fair enough.  Clevo bolts fit.??
 

See the thrust cap it has the nut to bolt down the oil thing

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[gerg 10,871]

Well, today I learnt something. Even though these Scorpions are supposed to be for 351C, 400M and big block Ford, and yes they do physically bolt on, the pedestal is a couple of mm higher so you'll be too short in the pushrod on a Clevo. I found this out the hard way when I went to bolt them on.

Part number: SCP1024

Here's the pedestal:



Despite having different numbers, the rocker bodies look pretty much identical, save for the new ones having silver trunnions and roller shafts (not black). Slight difference in the recess for the pushrod but otherwise look ok.



So the plan is to take the pedestals into work and skim a bit off them on the lathe to match the sample one that's correct.

Now you might be wondering what's going on with me ordering these when I have a set already... Well I almost had a full set. My brother kindly donated his ones that he bought off Wagoon (remember him?) that were meant for his turbo crossy XP ute project that was moved on to another bloke.

So I had a set of 12 for a crossy but a clevo takes 16... No biggie, I would just run them along with the 4 remaining stockers until I could order the last 4 rollers individually.

I cracked them open and tried bolting them on, found that the threads were wrong. They were M8s instead of 5/16. So it turns out that they wouldn't have worked on a crossy directly as the part number refers to the Canadian 3.8 Essex V6, which is a metric engine..... No drama, I got a set of 5/16 capscrews and bolted them on.



You might ask why I would do such a goofy thing, but I was chasing a tick in the valvetrain so I wanted to install the rollers and pick the best standard rockers to use for the last 4, to try and eliminate the noise. Still ticked though, I think in might have a few lazy lifters. The car otherwise ran fine with 4 stock rockers and 12 Scorpions.

It's taken over a year for me to pull my finger out and order these, and the only ones available individually from Summit now are these ones, which are supposed to be a universal Ford fitment. Annoyingly, Jeg's had the 3.8 ones available individually (perfect) but they don't ship internationally.

So... A heads-up for anyone getting these Scorpions for their clevo (or crossy). You will need to either skim the pedestal, get a longer pushrod or run a lash cap.

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[CHESTNUTXE 7,310]

gerg also remember the usa clevo used a shorter pushrod than our clevos or it could be the other way around i know its about 020 ,i found this out the hard way,once machine work is done those heights on the pedistall might be ok instead of using shims under the rocker

[CHESTNUTXE 7,310]

doesnt dwane jonson use those rockers he is the scorpian king

[bear351c 10,270]

Well, there ya go......  You can see the head of the pedestal is thicker.

[bear351c 10,270]

Measure them both up before you machine them, and let us know the difference, mate. Look like 1-2 mm. (.040 - .080" in old man language)

[gerg 10,871]

Measure them both up before you machine them, and let us know the difference, mate. Look like 1-2 mm. (.040 - .080" in old man language)

Yep you have your micrometer eyes calibrated right Bear. It's probably only 2mm which equates to about 3mm at the pushrod. Good thing is that the round bit can be gripped in the lathe and the base is what I'll machine off.

I'll defs record the difference and put it up here.

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[gerg 10,871]

gerg also remember the usa clevo used a shorter pushrod than our clevos or it could be the other way around i know its about 020 ,i found this out the hard way,once machine work is done those heights on the pedistall might be ok instead of using shims under the rocker

I think I might just do these ones the same as the others and run the shims on all of them, just for future consistency. There may or may not be a cam in this engine's future....
We'll see how much I can delude myself into thinking it's a necessity

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[CHESTNUTXE 7,310]

I think I might just do these ones the same as the others and run the shims on all of them, just for future consistency. There may or may not be a cam in this engine's future....
We'll see how much I can delude myself into thinking it's a necessity

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When can i buy the wags

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[gerg 10,871]

When can i buy the wags

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Haha not worth it now mate, roof is buggered and the whole car has been gergified

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[CHESTNUTXE 7,310]

Haha not worth it now mate, roof is buggered and the whole car has been gergified

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Yeah but the msd has had more programs than nasa luna module

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[gerg 10,871]

Yeah but the msd has had more programs than nasa luna module

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You want to buy my car for the MSD curve?

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