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GP Pilot 1238
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2,361 Posts
That is a proper motorsport line, i will just spend some more time staring at it and dreaming.... you just got to love pay day for Themus first thought engine build :lol:
Puts it into perspective when you think that this pile of parts equates to a 2nd hand R53 these days. Oh how times have changed!
 

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Themis
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1,791 Posts
Discussion Starter #427
To sum it up, today was an interesting day. The foundation (lower block and piston/rods assembly) of the engine is finished...

Combination of these:
ImageUploadedByTapatalk1360791214.005191.jpg
And these:
ImageUploadedByTapatalk1360791248.168828.jpg
And the appropriate lubrication of course ;-):
ImageUploadedByTapatalk1360791334.787792.jpg

Turning the crank by hand after the assembly and watching the smooth retrogression of the pistons/rods in the bore felt like porn!!!
 

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S13 Race developements
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366 Posts
:tongue_smilie:
this is looking soo good. cant wait for your updates.
excellent stuff themis
your engine is one of a kind.

what head gasket did you order? and what was the thickness? stock or thicker?
and did you upgrade the valve springs and retainers, maybe to titanium ones?
 

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S13 Race developements
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366 Posts
also, i guess you ordered schrick cams?
and the crank, is it custom made? if so, by whom?
many thanks this has made my week :w00t:
 

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508 Posts
Looking good, keep up the good work, Just a cautionary word, I know it's tempting to keep spinning the crankshaft, however with fresh rings and dry bores (I presume) they are dry! This is the time when the rings are vulnerable and can easily break!

Furthermore have you thought about your engines first initial start ? have you pre primed your oil pump and oil filter ? Initial cranking speed before ignition and before oil pressure and flow have built up, is where the most damage is done, here is an old engine builders trick (I do it everytime I build/rebuild an engine) to pre prime oil pumps for the initial start, the most commonly used is always fill them with your initial oil and to stop the oil draining out apply a useful amount of Vaseline or if you have it, bearing guard (white grease)
 

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Themis
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1,791 Posts
Discussion Starter #436 (Edited)
:tongue_smilie:
this is looking soo good. cant wait for your updates.
excellent stuff themis
your engine is one of a kind.

what head gasket did you order? and what was the thickness? stock or thicker?
and did you upgrade the valve springs and retainers, maybe to titanium ones?
Thanks mate...one of a kind is an understatement...every fucking bit is...well..."enhanced". None of the parts are bolt on!!!
That's why such projects need loads of the following:
1. Money
2. Time
3. Commitment

Edit: head gasket is stock thickness 0,9mm Erling me thinks.

also, i guess you ordered schrick cams?
and the crank, is it custom made? if so, by whom?
many thanks this has made my week :w00t:
Schrick cams, yes...isn't it obvious?
Crankshaft is custom-made (edit: it is the stock crank enhanced), yes. By whom will stay a secret, sorry.

I have so many technical stuff I want to discuss with you guys, I'm afraid I'll loose some of you...
Sadly, now I don't have the time as the project has changed pace...

It's an amazing project and as said above, it's uniqueness is based on the fact that everything is bespoke...not an easy task for the faint hearted...:wink:
 

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Themis
Joined
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1,791 Posts
Discussion Starter #437 (Edited)
Looking good, keep up the good work, Just a cautionary word, I know it's tempting to keep spinning the crankshaft, however with fresh rings and dry bores (I presume) they are dry! This is the time when the rings are vulnerable and can easily break!

Furthermore have you thought about your engines first initial start ? have you pre primed your oil pump and oil filter ? Initial cranking speed before ignition and before oil pressure and flow have built up, is where the most damage is done, here is an old engine builders trick (I do it everytime I build/rebuild an engine) to pre prime oil pumps for the initial start, the most commonly used is always fill them with your initial oil and to stop the oil draining out apply a useful amount of Vaseline or if you have it, bearing guard (white grease)
Thanks Roger.

You should have known me by now mate...the bores are not dry of course...I would be stupid if I turned the crank on a dry bore!
Yes, I have thought the initial startup (I am aware that inadequate lubrication of the internals can cause damage on the first startup) so I am taking precautionary measures on any part assembled...not only the oil pump and bore!
You'll probably have done a gazilion rebuilds more than me, so it's good and welcome to see your recommendations/comments here.

Stay tuned...
 

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Registered
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508 Posts
Thanks Roger.

You should have known me by now mate...the bores are not dry of course...I would be stupid if I turned the crank on a dry bore!
Yes, I have thought the initial startup (I am aware that inadequate lubrication of the internals can cause damage on the first startup) so I am taking precautionary measures on any part assembled...not only the oil pump and bore!
You'll probably have done a gazilion rebuilds more than me, so it's good and welcome to see your recommendations/comments here.

Stay tuned...
That's good to hear, good looking custom cast crankshaft. :wink:
 

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Registered
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508 Posts
No no no, I didn't mean to say the crank is custom-made/cast from scratch, but it is the stock crank modified/bespoke...
Excuse my English if I was misunderstood...

It's just me Themis, I'm a little bit over observant, sorry, I'm glad to hear that it's not a custom cast crankshaft, as that would be taking a step backwards. :lol:
 
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