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-   -   47-55.1 Eliminate draft tube options (https://67-72chevytrucks.com/vboard/showthread.php?t=849339)

TX3100Guy 04-08-2024 12:03 PM

Re: Eliminate draft tube options
 
2 Attachment(s)
Quote:

Originally Posted by dsraven (Post 9302401)
hey, any word on an update?

Thanks for checking in, as you can imagine I'm a little impatient for news too. I packaged up all the parts I needed to send along with the engine. I palletized everything and had it sent to the engine builder in California.

He acknowledged receipt and sent me a photo of the pallet having arrived safe and sound. He had originally told me that he wouldn't be able to start on it until this week, so I will be checking in with him soon to see what his thoughts are once he'd viewed the engine and components.

Attachment 2349052 Attachment 2349051

leegreen 04-08-2024 12:32 PM

Re: Eliminate draft tube options
 
around my house reflections off the shop floor are a sign something is leaking

TX3100Guy 05-08-2024 07:29 PM

Re: Eliminate draft tube options
 
2 Attachment(s)
While I am impatiently waiting on my engine rebuild, I have been busily getting everything else in tip top shape. A friend painted the Mar-K bed metal that was still in primer. I decided to wire in and install four speakers, two will be installed in kick panels from Rod Door, two will be speaker enclosures behind the bench seat, and a subwoofer under the bench seat. I'm not sure it will make a big difference, but my adult son who fantasizes that this is "our truck" wanted them and I was bored.

This week I will begin the process of sanding and staining the new bed wood. Then I'll just have to sit and twiddle my thumbs until an engine is delivered.

Attachment 2361404

Attachment 2361405

leegreen 05-08-2024 07:38 PM

Re: Eliminate draft tube options
 
looking good!

TX3100Guy 08-10-2024 03:42 PM

Re: Eliminate draft tube options
 
5 Attachment(s)
So for those of you that remember this thread, I have been waiting patiently since April for my engine to get rebuilt. It was in line behind a number of other engine waiting for its turn to be worked on. I've stayed in touch with the builder throughout and this past week, he started sending me photos of my engine underway.

I thought I would share photos of the engine and my recently completed bed wood set.

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Attachment 2384008

nvrdone 08-10-2024 05:07 PM

Re: Eliminate draft tube options
 
Man, that engine looks almost as nice as the bed. Hope the truck runs as good as it looks.

dsraven 08-11-2024 11:35 AM

Re: Eliminate draft tube options
 
looks good. do you have a completion date?

dsraven 08-11-2024 12:53 PM

Re: Eliminate draft tube options
 
I mean a date when you will see it back at your shop ready to install

TX3100Guy 08-11-2024 10:02 PM

Re: Eliminate draft tube options
 
1 Attachment(s)
Quote:

Originally Posted by dsraven (Post 9333150)
I mean a date when you will see it back at your shop ready to install

Well according to my engine builder buddy in CA, he plans on starting the engine this week and letting it burn in for a while to ensure no valve tapping or leaks. But the following week my wife and I are out of town for the week in Las Vegas, so I don't want him to ship until we are ready to come back home.

Conceivably, I could have it in my shop before Labor Day BUT, isn't there always a but. He is trying to find a way to shorten the shaft on my magneto, he doesn't like how tall it is and fear that it will walk around under load.

Attached is a picture of the magneto and the shaft that has a tach generator that I don't need with electronic gauges. But in total the shaft when assembled on the magneto stands tall. He is trying to fabricate a shaft from an old distributor and a sleeve to hold the mag. Once he has that figured out, then the engine can be started.

Attachment 2384349

dsraven 08-13-2024 12:59 AM

Re: Eliminate draft tube options
 
yikes, that IS tall.

TX3100Guy 08-19-2024 07:49 PM

Re: Eliminate draft tube options
 
4 Attachment(s)
More photos of my engine in process. Should be started and test run tomorrow.

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dsraven 08-21-2024 10:50 AM

Re: Eliminate draft tube options
 
looking good. soon it will be in your shop.
possibly consider a support clamp on the oil pressure sender because vibration causes cracks in the fittings. the longer and heavier the parts are then the ore chance of having an issue. I have seen some crack at the exit from the block and you don't want that. easier to whip up a clamp before it goes into the truck.
you're gonna have fun driving soon. kepp posting up pics as you go

TX3100Guy 08-26-2024 05:51 PM

Re: Eliminate draft tube options
 
Link to video of first engine run.

https://youtube.com/shorts/235dRdHrL...6EZUd-Madz1saB

My intake, his exhaust, alternator, etc.

geezer#99 08-26-2024 07:02 PM

Re: Eliminate draft tube options
 
Did you break in the cam? Ran it at 1500-2000 rpm for 20 minutes.
In the video the rpm sounds low.

TX3100Guy 08-26-2024 07:37 PM

Re: Eliminate draft tube options
 
Quote:

Originally Posted by geezer#99 (Post 9336630)
Did you break in the cam? Ran it at 1500-2000 rpm for 20 minutes.
In the video the rpm sounds low.

Yeah, the builder has run it multiple times including a run to burn in the cam. He’s going to run it again tomorrow for another high rpm run prior to shipping.

dsraven 08-26-2024 09:10 PM

Re: Eliminate draft tube options
 
Nice. Gotta be getting antsy now. Gonna be soo-eet!

my56chevytruck 08-27-2024 08:45 AM

Re: Eliminate draft tube options
 
Quote:

Originally Posted by tx3100guy (Post 9336611)
link to video of first engine run.

https://youtube.com/shorts/235drdhrl...6ezud-madz1sab

my intake, his exhaust, alternator, etc.

your engine sounds great, congrats

TX3100Guy 08-28-2024 03:17 PM

Re: Eliminate draft tube options
 
Quote:

Originally Posted by dsraven (Post 9336676)
Nice. Gotta be getting antsy now. Gonna be soo-eet!

The pallet with the engine is now in the hands of FedEx Freight. I should have the engine on Tuesday, since Monday is Labor Day. More pics to come once its in my hot little hands.

dsraven 08-29-2024 11:19 AM

Re: Eliminate draft tube options
 
now be a good boy and sit tight for the long weekend. don't be polishing wrenches or dreaming about installing and starting that engine, listening to it rumble......
haha
good you have a confirmation of shipment. you'll be test driving soon.

TX3100Guy 08-29-2024 11:32 AM

Re: Eliminate draft tube options
 
Quote:

Originally Posted by dsraven (Post 9337361)
now be a good boy and sit tight for the long weekend. don't be polishing wrenches or dreaming about installing and starting that engine, listening to it rumble......
haha
good you have a confirmation of shipment. you'll be test driving soon.

A buddy of mine accused me of sitting in the truck playing the video loud and pretending to drive the truck. LOL

dsraven 08-29-2024 11:35 AM

Re: Eliminate draft tube options
 
I guess you could spend some time cleaning the windows then, prolly spit all over them from you making engine sounds. haha

TX3100Guy 09-04-2024 10:14 PM

Re: Eliminate draft tube options
 
3 Attachment(s)
After months of waiting, my rebuilt 1959 261 straight six has finally arrived. Now to get to work installing it.

Attachment 2390498


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Attachment 2390500

dsraven 09-04-2024 10:23 PM

Re: Eliminate draft tube options
 
That's awesome! You must be excited to get after it.

TX3100Guy 09-06-2024 02:05 PM

Re: Eliminate draft tube options
 
1 Attachment(s)
Snug as a bug in a rug.

Attachment 2390729

dsraven 09-07-2024 07:29 PM

Re: Eliminate draft tube options
 
sooo-eeet!
now the accy and soon, BOOM, driving!

geezer#99 09-07-2024 07:44 PM

Re: Eliminate draft tube options
 
Considering the front mount, is there a need for an engine tie down strap?

TX3100Guy 09-07-2024 07:47 PM

Re: Eliminate draft tube options
 
Quote:

Originally Posted by geezer#99 (Post 9339430)
Considering the front mount, is there a need for an engine tie down strap?

You tell me. How and where?

TX3100Guy 09-07-2024 08:01 PM

Re: Eliminate draft tube options
 
Quote:

Originally Posted by geezer#99 (Post 9339430)
Considering the front mount, is there a need for an engine tie down strap?

It also has two mounts on either side of the bell housing.

geezer#99 09-07-2024 09:36 PM

Re: Eliminate draft tube options
 
What are you using for a throttle hook up?

I’ve seen a steel cable looped over an exhaust manifold close to the head and tied onto the frame.

TX3100Guy 09-08-2024 06:45 PM

Re: Eliminate draft tube options
 
Quote:

Originally Posted by geezer#99 (Post 9339449)
What are you using for a throttle hook up?

I have a knock-0ff Lokar pedal that mounts through the firewall and the stainless steel sheathed cable goes up the sealed car enclosure for my McCulloch supercharger (from a 1957 Studebaker Golden Hawk) and attaches to the throttle mechanism.

geezer#99 09-09-2024 11:59 AM

Re: Eliminate draft tube options
 
Your lokar cable is better than a mechanical linkage.
If a mount breaks at least your engine won’t go full throttle.
A steel cable looped from the front of the engine (drivers side ) down to the frame is just a precautionary device. Just in case a mount breaks and the motor twists up to the passenger side.

TX3100Guy 09-09-2024 12:43 PM

Re: Eliminate draft tube options
 
Quote:

Originally Posted by geezer#99 (Post 9339751)
Your lokar cable is better than a mechanical linkage.
If a mount breaks at least your engine won’t go full throttle.
A steel cable looped from the front of the engine (drivers side ) down to the frame is just a precautionary device. Just in case a mount breaks and the motor twists up to the passenger side.

Have any pictures that show how it’s attached to the engine and frame?

geezer#99 09-09-2024 01:32 PM

Re: Eliminate draft tube options
 
Lots of info here plus some pics.


https://garage.grumpysperformance.co...r-mounts.2617/

mr48chev 09-10-2024 07:10 PM

Re: Eliminate draft tube options
 
That looks great in there.

dsraven 09-10-2024 09:38 PM

Re: Eliminate draft tube options
 
if you have a place nearby that makes cables with pressed on connections you could have a cable made for the purpose of engine torque restriction, you know, to save the hassle of a motor mount giving out and causing damage. they could press on a connection with a bolt hole the size you need and the cable length you need. ensure to leave a little slack so the engine can move a little otherwise you will hear the harmonics of the engine through the solid link to the frame when the engine pulls even a little.personally I think cable looks better than chain, just me though.

TX3100Guy 09-10-2024 10:37 PM

Re: Eliminate draft tube options
 
Quote:

Originally Posted by dsraven (Post 9340002)
if you have a place nearby that makes cables with pressed on connections you could have a cable made for the purpose of engine torque restriction, you know, to save the hassle of a motor mount giving out and causing damage. they could press on a connection with a bolt hole the size you need and the cable length you need. ensure to leave a little slack so the engine can move a little otherwise you will hear the harmonics of the engine through the solid link to the frame when the engine pulls even a little.personally I think cable looks better than chain, just me though.

Just how often do a new front and two new rear mounts (on the bell housing) give way?

mr48chev 09-10-2024 11:42 PM

Re: Eliminate draft tube options
 
Quote:

Originally Posted by geezer#99 (Post 9339430)
Considering the front mount, is there a need for an engine tie down strap?

Only if the torque on launch dictates the need. That same motormount setup worked in two ton trucks coming out of fields well overloaded in compound low with engines putting out all the torque they could muster without failures. At least I never heard of them failing. Leaking oil compromising the rubber was normally the reason for failure. At least every one I seen that was bad was oil soaked. That isn't likely to happen on that engine.

geezer#99 09-10-2024 11:59 PM

Re: Eliminate draft tube options
 
Considering the quality of new parts these days, anything could happen.

mr48chev 09-11-2024 01:58 AM

Re: Eliminate draft tube options
 
Quote:

Originally Posted by geezer#99 (Post 9340025)
Considering the quality of new parts these days, anything could happen.

It doesn't take much effort or $ to install a chain to keep the engine from torqueing over too much and that is old school tech. You just leave enough slack so that the chain stops it from moving too far but still lets it move normally.

leegreen 09-11-2024 09:42 AM

Re: Eliminate draft tube options
 
With the cable throttle torque reaction of the motor won't pin the throttle open.
Anyone reading this with a solid rod throttle setup: the key safety thing for you is to make sure the link between firewall and engine is angled so that if the motor rises up after a mount brakes the arc of the link moving closes the throttle, not opens.

With new mounts I'd just keep an eye on them. Or weld a tab to the cross member to limit how much the motor can twist if RR mount breaks. Or run the ignition wire so it unplugs itself if the motor flops over.

That is a very pretty engine bay, a chunk of chain is going to look off.


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