First C3 Vette and luvin it :)

[Chuffer]

Very impressed I am Captain Faffer !! A real credit to your skills , dedication and tenacity .

 

[Roscobbc]

Are the three threaded holes tapped in to the water gallery of the inlet manifold? - If so (and it will vary according to car application) one could be for temperature sensor - another could be connection to by-pass hose in top of water pump (if actually used) - the third one a 'spare'?

 

[Waynio]

Have you fired the engine up yet?

Apologies if I am telling you something you already know.

You may have read my Engine Issues thread. Having rebuilt the top end of the engine we fired it up for a few minutes, but clearly there was still something wrong and a new noise emerged as the engine started to warm up. We turned it off, checked a few bits and tried again, still the same so switched it off and pulled the engine out to send it to a specialist.

The new cam and followers are shot after no more than 10 mins running. The engine specialist said that as we had not been able to follow the correct start up procedure due to the con rod bearing failure, the cam and not been heat cycled and had worn prematurely. I think he said it should have been run with a high zinc based oil for 30 mins at 3500 rpm, then switched off to full cool down.

I would definitely make sure you know what the correct break in process is for the rebuilt engine before you fire it up.

Again, apologies if you know this already, but if I can save you knackering a brand new cam then it will be worth it.

In appreciate the thought although know there is a break in procedure ( not sure what it is though ) but this has only had original heads put back on and just new lifters. Saying that though i may be wrong in thinking as its just new lifters and rest is original, well but for the shiny parts, i dont need to do any break in for the lifters.
Do i ?

 

[johng]

So a question

The three outlets/inlets in the manifold near the thermostat. i know the one on the far left is for the heater core. What would i use the other three for. I am running straight carb.

The on thats at the back will be the one to the brake servo vaccum

View attachment 28960

On my car the middle one is for the EGR TVS switch as shown in the diagram and photo below. I don't have the one on the driver's side, but you could use it for an EFE TVS switch if you have that fitted still, otherwise as Ross says, it's a spare.

 

[Waynio]

Very impressed I am Captain Faffer !! A real credit to your skills , dedication and tenacity .

Thanks kida. Not a good thing at times as i dont know when to stop haha. T has been out some days and told me to stop to get some food haha. I do love to Faff about though.

I reckon ill have it on the road before the due date. If you missed it tha is the 13/3/25. yes Friday 13th arrrr

 

[Waynio]

On my car the middle one is for the EGR TVS switch as shown in the diagram and photo below. I don't have the one on the driver's side, but you could use it for an EFE TVS switch if you have that fitted still, otherwise as Ross says, it's a spare.
View attachment 28962

View attachment 28963

Think have sussed it then, I can blank of the three i refer to. I just need a vac from the middle of the carb to a rocker cover. then blank the right hand one and the left hand one to the dizzy.

On the manifold the inlet/outlet on the rear to the brake servo vaccum.

 

[Waynio]

Are the three threaded holes tapped in to the water gallery of the inlet manifold? - If so (and it will vary according to car application) one could be for temperature sensor - another could be connection to by-pass hose in top of water pump (if actually used) - the third one a 'spare'?

sorry didnt notice your reply, buurrr with ill check

 

[Chuffer]

Thanks kida. Not a good thing at times as i dont know when to stop haha. T has been out some days and told me to stop to get some food haha. I do love to Faff about though.

I reckon ill have it on the road before the due date. If you missed it tha is the 13/3/25. yes Friday 13th arrrr

Good luck with that one then . Always over estimate and under deliver I say .

 

[Waynio]

Are the three threaded holes tapped in to the water gallery of the inlet manifold? - If so (and it will vary according to car application) one could be for temperature sensor - another could be connection to by-pass hose in top of water pump (if actually used) - the third one a 'spare'?

yes all three are into the water gallery.

So i can blank them all off. just need the far left one for the heater core. I already have a temp sender. dont need a temp sensor.

thanks l

Oh yes all best to all for new year. i keep forgetting its new years eve.

 

[Waynio]

Good luck with that one then . Always over estimate and under deliver I say .

Well to say all i need to do ( unless i get daft again ) , i have loads of time
I actually over estimated its finish date but its come quick still near done .


Fuel line needs fitting.
Fit radiator surround and radiator.
Wire and plumb up the engine,

 

[MilkyNoSugar]

In appreciate the thought although know there is a break in procedure ( not sure what it is though ) but this has only had original heads put back on and just new lifters. Saying that though i may be wrong in thinking as its just new lifters and rest is original, well but for the shiny parts, i dont need to do any break in for the lifters.
Do i ?

I strongly urge you to check with an engine specialist before you fire it up - I am not an expert and learning as I go. It would be a hell of a shame to bugger it up given all the work you are doing.

It was the new Comp Cams cam followers (lifters) that took the real battering apparently in my engine - damaged beyond all hope of re-use in less than 10 mins. The new Comp Cams cam lobes were worn prematurely as well and possibly might have been reusable with a grind.

 

[CaptainK]

Oh i have then days, make a big plan ( reason i dont do plans now ) then very little if anything gets done. Where are you anyway ?

I'm down in Somerset near Taunton.

I see you went for the same inlet manifold as me - Edelbrock Performer EPS. I have that and the 1406 carb on my 1968 C3. Most of my water attachments on the front of the EPS are blanked off. Just one on the passenger side goes off to somewhere I can't remember now.

 

[Waynio]

I'm down in Somerset near Taunton.

I see you went for the same inlet manifold as me - Edelbrock Performer EPS. I have that and the 1406 carb on my 1968 C3. Most of my water attachments on the front of the EPS are blanked off. Just one on the passenger side goes off to somewhere I can't remember now.

Passed there when i popped down to Redruth when i bought the Vette. So yes a bit far to pop over to faff about.

The only outlet i need...i think,. Is the far passenger side for the heater core. Which reminds me again i need a heater box for the engine bay. And the one at the back for the brake servo.

I didnt do much at all today. fitted the radiator once i made this fitting.

The end snapped off when i was removing the rad surround. So instead of trying to get the support bar off i made this adaptor.

And while i was doing that i though why not make an fitting for the throttle cable to connect to the carb.

Please excuse the lathe work, broke all tips and cant find my fav tool. Didnt want to sharpen up my others. Works a treat though. nowt wrong with a bit of rough.

So getting there of the final fiddly bits.

Haha, fiddly bits. i have decided to polish up these headers. this will be a couple days of a ob. Mite just do the bits you can see haha

Next is to finish the radiator fittings. wire the elecy choke. tidy the engine bay wiring. oh sort fuel lines out. last fews bit. i keep saying that haha. to arrive from Summit as i ordered some wheel arch dust shields, bungs for the inlet manifold and the T bars for the valve covers. I need to decide on what HT lead clips i want to get, I was going to make some, may still do yet.

 

[Forrest Gump]

In appreciate the thought although know there is a break in procedure ( not sure what it is though ) but this has only had original heads put back on and just new lifters. Saying that though i may be wrong in thinking as its just new lifters and rest is original, well but for the shiny parts, i dont need to do any break in for the lifters.
Do i ?

I would definitely do a break-in procedure - as you have new followers.
2000 to 2500 rpm (vary it) for at least 20 minutes from the second you fire it up. Don’t let it idle at all or you risk damage. Get the oil pressure up with your pump primer tool first, then quickly get the dizzy back in and go for it. Tip some fuel into the carb bowls too so that you’re not turning the engine over much before it fires. Use high zinc (ZDDP) oil then dump that and the filter after the break-in. You’re probably aware you also need to use high zinc oil in the engine for normal running too -like Valvoline VR1. Btw Gearbox needs GL4. (not 4/5) if you’re changing that.

 

[Waynio]

I would definitely do a break-in procedure - as you have new followers.
2000 to 2500 rpm (vary it) for at least 20 minutes from the second you fire it up. Don’t let it idle at all or you risk damage. Get the oil pressure up with your pump primer tool first, then quickly get the dizzy back in and go for it. Tip some fuel into the carb bowls too so that you’re not turning the engine over much before it fires. Use high zinc (ZDDP) oil then dump that and the filter after the break-in. You’re probably aware you also need to use high zinc oil in the engine for normal running too -like Valvoline VR1. Btw Gearbox needs GL4. (not 4/5) if you’re changing that.

I will do exactly that and go with your suggestion. I look a round and see all sorts of do this, do that, they vary a lot, too much for me.
Is it ok to add Zinc additive to the oil i have put in already as that is/was the plan, ? For the run in ?


Neighbours are going to love me even `more` doing this on the drive lol. Ill do it a Friday afternoon i think. And fit the baffles in the side pipes

 

[Forrest Gump]

I will do exactly that and go with your suggestion. I look a round and see all sorts of do this, do that, they vary a lot, too much for me.
Is it ok to add Zinc additive to the oil i have put in already as that is/was the plan, ? For the run in ?


Neighbours are going to love me even `more` doing this on the drive lol. Ill do it a Friday afternoon i think. And fit the baffles in the side pipes

Yes to the zinc additive, assuming it’s something designed for the job like the Lucas Oil one.
What’s the matter with your neighbours - surely everyone likes the sound of a big V8?
As well as priming the carb, check of course you’ve got enough fuel in the tank to run it for the period!
Break in is easier if you’ve got a helper - they can sit in the car and keep the revs right while you check everything is okay in the engine bay and bat-off any neighbours.

 

[CaptainK]

Passed there when i popped down to Redruth when i bought the Vette. So yes a bit far to pop over to faff about.

Didn't know your Vette was from down that end of Cornwall - my folks live just a few miles from Redruth, and I was brought up around there.

 

[Waynio]

Yes to the zinc additive, assuming it’s something designed for the job like the Lucas Oil one.
What’s the matter with your neighbours - surely everyone likes the sound of a big V8?
As well as priming the carb, check of course you’ve got enough fuel in the tank to run it for the period!
Break in is easier if you’ve got a helper - they can sit in the car and keep the revs right while you check everything is okay in the engine bay and bat-off any neighbours.

I had`nt chosen an additive to go for, My local car shop does not sell it so i left it for now but as you mention Lucas, which i know is good stuff in most they do ill go for that.
I was only joking on the neighbours, there used to me by now after 20 years lol. If they dont like a real engine sound its tuff lol. There are a few now with the battery powered cars.

 

[Waynio]

Didn't know your Vette was from down that end of Cornwall - my folks live just a few miles from Redruth, and I was brought up around there.

Yes the chap had it for 12 years and imported it himself. He is a member on the Facebook group, but not on often, just when i put something on.