1971 Journey
Thread Starter
Melting Slicks
Joined: Apr 2010
Posts: 2,795
Likes: 1,196
From: Canberra Australia
2025 C3 of the Year Finalist - Modified
I hadn't seen those tow plates before.
Was defiantly going to make something for the rear diff mount when i changed my diff.
I'd actually drawn something up in CAD couple years ago, but never progressed any further....
Electric PS, is that to free up hp or to have a cleaner looking engine bay?
I was so looking forward to seeing you and your vette again at the Nationals @ Easter...
... damn Covid.
In fact i'm off work for 10 days in self isolation with it at the moment, head/back ache and score throat.
Was defiantly going to make something for the rear diff mount when i changed my diff.
I'd actually drawn something up in CAD couple years ago, but never progressed any further....
Electric PS, is that to free up hp or to have a cleaner looking engine bay?
I was so looking forward to seeing you and your vette again at the Nationals @ Easter...
... damn Covid.In fact i'm off work for 10 days in self isolation with it at the moment, head/back ache and score throat.
the rear tow plate is from VanSteel and the front from Dave Howard here on the forum. He started with a plate that allows you to use a jack under the front crossmember then added tow hooks. Nicely made for sure.
As for electric power steering pumps the old Saginaw pump has always been a bit noisy and I thought I would do some more research after reading some good posts here about them. Also it was a bargain to buy locally so I grabbed it.
look after yourself, we have had friends and family members with it who have got very sick.
Thread Starter
Melting Slicks
Joined: Apr 2010
Posts: 2,795
Likes: 1,196
From: Canberra Australia
2025 C3 of the Year Finalist - Modified
I had a small leak in my TH400 selector shaft seal so I dropped part of the exhaust and using the tool I recently got removed it.
New one in exhaust back on and its leaking worse !!!!!!
So this time I used some plastic film around the selector shaft to ensure I was not damaging the seal as i put it on.
Lucky I purchased more than one seal.
I will leave it a day and see if it leaks this time before putting exhaust back.
New one in exhaust back on and its leaking worse !!!!!!
So this time I used some plastic film around the selector shaft to ensure I was not damaging the seal as i put it on.
Lucky I purchased more than one seal.
I will leave it a day and see if it leaks this time before putting exhaust back.
Last edited by CraigH; Apr 10, 2023 at 07:20 AM.
Thread Starter
Melting Slicks
Joined: Apr 2010
Posts: 2,795
Likes: 1,196
From: Canberra Australia
2025 C3 of the Year Finalist - Modified
After a few days no leaks from the selector shaft.
Lets see if it lasts.
Lets see if it lasts.
Last edited by CraigH; Apr 10, 2023 at 07:20 AM.
Thread Starter
Melting Slicks
Joined: Apr 2010
Posts: 2,795
Likes: 1,196
From: Canberra Australia
2025 C3 of the Year Finalist - Modified
Got some time while watching TV to progress the Arduino project to control my thermo fans.
Was tired of taking the laptop to the car to watch the monitor to see what was happening so I spent $3.50 and got an OLED display to write to that show me what's going on.
The voltage is the reading on the factory temperature sender (sender varies resistance based on temperature that changes the voltage). The pwm is the speed I am sending to the fans. The second line just read out what is happening, like buttons being pressed etc.
Fun evening project.
Should have it in the car soon so I can work out the points to start the fans and how to speed them up based on temperature.
Its nice to no longer have the huge amp spike when the fans come on.
Code from Carl Buchbinder was a great starting point.
Was tired of taking the laptop to the car to watch the monitor to see what was happening so I spent $3.50 and got an OLED display to write to that show me what's going on.
The voltage is the reading on the factory temperature sender (sender varies resistance based on temperature that changes the voltage). The pwm is the speed I am sending to the fans. The second line just read out what is happening, like buttons being pressed etc.
Fun evening project.
Should have it in the car soon so I can work out the points to start the fans and how to speed them up based on temperature.
Its nice to no longer have the huge amp spike when the fans come on.
Code from Carl Buchbinder was a great starting point.
Last edited by CraigH; Apr 10, 2023 at 07:20 AM.
Thread Starter
Melting Slicks
Joined: Apr 2010
Posts: 2,795
Likes: 1,196
From: Canberra Australia
2025 C3 of the Year Finalist - Modified
Had the Vette out for a cruise today with other local car enthusiast.
Both my Vette and the HQ Holden were cars from 1971. The HQ was the highest selling Holden model and sold from 71 to 74.
https://en.wikipedia.org/wiki/Holden_HQ
Both my Vette and the HQ Holden were cars from 1971. The HQ was the highest selling Holden model and sold from 71 to 74.
https://en.wikipedia.org/wiki/Holden_HQ
Last edited by CraigH; Apr 11, 2023 at 12:41 AM.
Thread Starter
Melting Slicks
Joined: Apr 2010
Posts: 2,795
Likes: 1,196
From: Canberra Australia
2025 C3 of the Year Finalist - Modified
Some nice things in the mail today from DeWitts and Corvette Central.
The customer order surge tank modified for use as radiator overflow and the brackets etc needed to mount it.
Something to do this week.
John Dingman from DeWitts can have one made if needed.
The customer order surge tank modified for use as radiator overflow and the brackets etc needed to mount it.
Something to do this week.
John Dingman from DeWitts can have one made if needed.
Last edited by CraigH; Apr 10, 2023 at 07:19 AM.
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Thread Starter
Melting Slicks
Joined: Apr 2010
Posts: 2,795
Likes: 1,196
From: Canberra Australia
2025 C3 of the Year Finalist - Modified
Thread Starter
Melting Slicks
Joined: Apr 2010
Posts: 2,795
Likes: 1,196
From: Canberra Australia
2025 C3 of the Year Finalist - Modified
Factory looking radiator recovery system is now in.
Easy to mount as dimples for rivets are all there just need to be drilled out.
I drained and flushed the system then filled with new coolant.
The cap on the recovery tank has had the rubber seal removed so it no longer provides a seal at all.
Easy to mount as dimples for rivets are all there just need to be drilled out.
I drained and flushed the system then filled with new coolant.
The cap on the recovery tank has had the rubber seal removed so it no longer provides a seal at all.
Last edited by CraigH; Apr 10, 2023 at 07:19 AM.
Thread Starter
Melting Slicks
Joined: Apr 2010
Posts: 2,795
Likes: 1,196
From: Canberra Australia
2025 C3 of the Year Finalist - Modified
Yes I am very happy with it, gives a stock appearance but modern recovery operation. I was lucky to come across your thread from early 2021 by chance earlier this year. Perfect solution.
https://www.corvetteforum.com/forums...stom-part.html
https://www.corvetteforum.com/forums...stom-part.html
Thread Starter
Melting Slicks
Joined: Apr 2010
Posts: 2,795
Likes: 1,196
From: Canberra Australia
2025 C3 of the Year Finalist - Modified
Another take on the trans pan and associated leaks.
I had a new cast aluminum pan that I fitted with a Moroso gasket.
Also replaced the shifter shaft seal again but this time sanded the shaft smooth and used some sealant around the metal to metal parts of the seal.
5 Days and no leaks yet.
I did have to do some severe compression on one of my exhaust pipe segments to get clearance for the pan. I will get that re-made in the next few weeks.
I had a new cast aluminum pan that I fitted with a Moroso gasket.
Also replaced the shifter shaft seal again but this time sanded the shaft smooth and used some sealant around the metal to metal parts of the seal.
5 Days and no leaks yet.
I did have to do some severe compression on one of my exhaust pipe segments to get clearance for the pan. I will get that re-made in the next few weeks.
Last edited by CraigH; Apr 10, 2023 at 07:18 AM.
Race Director
Joined: Mar 2016
Posts: 14,406
Likes: 8,212
From: Napa Valley California
I've seen a couple of threads where guys have used oval exhaust tubing to gain a little ground clearance.
I wonder if it would work for you to gain some clearance between the pan and exhaust tube.
I wonder if it would work for you to gain some clearance between the pan and exhaust tube.
Instructor
Joined: Jul 2007
Posts: 200
Likes: 87
From: College Station Texas
Ouch on the exhaust, but I bet the stiff pan eliminates the leaks at the pan to gasket interface and sealing up the metal to metal on the body of the seal to the case hopefully finished that off too. They usually mold some of the rubber to the outer (case sealing) face of the shaft seal, but it's often suspect whether or not it will seal, especially if it has been replaced more than once over the last 51 years. I love your attention to detail, it's often the little things that make the biggest difference in enjoying our hobby.
Thread Starter
Melting Slicks
Joined: Apr 2010
Posts: 2,795
Likes: 1,196
From: Canberra Australia
2025 C3 of the Year Finalist - Modified
I looked at oval exhaust tube where the pipes come under the diff but we managed to tuck it up fairly well and my diff is a bit higher than normal with the delrin mounts.
The photos possibly make it look worse but I think he will be able to get the pipe in ok and still tuck it up.
have only had the pipes scrape once towards the diff.
I crushed the pipe way more than needed as I tried to compensate on the other side it ge it to align at the flanges.
certainly hoping this pan seals better.
The photos possibly make it look worse but I think he will be able to get the pipe in ok and still tuck it up.
have only had the pipes scrape once towards the diff.
I crushed the pipe way more than needed as I tried to compensate on the other side it ge it to align at the flanges.
certainly hoping this pan seals better.
Thread Starter
Melting Slicks
Joined: Apr 2010
Posts: 2,795
Likes: 1,196
From: Canberra Australia
2025 C3 of the Year Finalist - Modified
Ouch on the exhaust, but I bet the stiff pan eliminates the leaks at the pan to gasket interface and sealing up the metal to metal on the body of the seal to the case hopefully finished that off too. They usually mold some of the rubber to the outer (case sealing) face of the shaft seal, but it's often suspect whether or not it will seal, especially if it has been replaced more than once over the last 51 years. I love your attention to detail, it's often the little things that make the biggest difference in enjoying our hobby.
Thread Starter
Melting Slicks
Joined: Apr 2010
Posts: 2,795
Likes: 1,196
From: Canberra Australia
2025 C3 of the Year Finalist - Modified