Black 'project' 400 Griff...Moves up a gear...

Black 'project' 400 Griff...Moves up a gear...

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Discussion

stevesprint

1,114 posts

178 months

Saturday 16th April 2016
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hillclimbmanic said:
...just a little flash of chassis porn...



Very sexy and certainly revs up my automotive hormones, you're going to end up with a very desirable Griff with all the right mods.


hillclimbmanic said:
Hello diff...Everything good inside...Slight weep on pinion shaft seal, so waiting for delivery...
Should I Polish the cover, and 2-pack clear it??



Now your diff cover looks cool you'll also have to paint the housing, if you haven't already. Over 8 years ago I used a wire brush in a drill on mine and then painted it with good old Hammerite. 8 years on I'm pleased to report all the paint is still intact, and before anyone asks yes I did paint the other half of the diff. laugh


While you're doing the front oil seal I guess you are also replacing the output oil seals as they are also prone to leaking and are the easy ones to change.

hillclimbmanic

Original Poster:

610 posts

143 months

Sunday 17th April 2016
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stevesprint said:
Now your diff cover looks cool you'll also have to paint the housing, if you haven't already. Over 8 years ago I used a wire brush in a drill on mine and then painted it with good old Hammerite. 8 years on I'm pleased to report all the paint is still intact, and before anyone asks yes I did paint the other half of the diff. laugh


While you're doing the front oil seal I guess you are also replacing the output oil seals as they are also prone to leaking and are the easy ones to change.
How do I remove/refit the output seals, Steve? I've already caused myself a problem, by not indexing the pinion nut!

Paul

stevesprint

1,114 posts

178 months

Sunday 17th April 2016
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hillclimbmanic said:
How do I remove/refit the output seals, Steve?
To be honest, once I got my diff out I took it to Topcats Racing for an overhaul and while there Brian showed how easy to remove the output flanges, well easy if you have the correct circlip pliers.

Anyway, this picture should answer your question.


hillclimbmanic said:
I've already caused myself a problem, by not indexing the pinion nut!
Paul
This GKN Maserati Workshop manual may help, www.stevesprint.com/TVR-Griffith-Docs/GKN_diff.zip , one day I’ll merge the jpgs into one pdf.
Steve

hillclimbmanic

Original Poster:

610 posts

143 months

Monday 18th April 2016
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stevesprint said:
This GKN Maserati Workshop manual may help, www.stevesprint.com/TVR-Griffith-Docs/GKN_diff.zip , one day I’ll merge the jpgs into one pdf.
Steve
Brilliant, Steve.!!

Thanks bow

Pete Mac

755 posts

136 months

Wednesday 20th April 2016
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Manic, sorry missed these last few posts but currently doing the same thing. I am also using the Maserati manual. Haven't started rebuilding yet but bought all bearings, oil seals, will makes gasket and as I said in you other thread I have also had 2mm spacers made up. I don't know if the following helps, I have the benefit of a blast cabinet and I do my own powder coating in a domestic oven from fleabay.

I did his to help me identify what I need:



Before:




After:






Before:



After:



I also had problems with these little tinkers.




I wanted to replace but couldn't find new with spigots so I have bought ordinary circlips and will have to modify pliers unless you find a source....? I have lots of photos and measurements of bearings and seals if that helps and you want to mail me. Pete

hillclimbmanic

Original Poster:

610 posts

143 months

Wednesday 20th April 2016
quotequote all
Pete Mac said:
Manic, sorry missed these last few posts but currently doing the same thing. I am also using the Maserati manual. Haven't started rebuilding yet but bought all bearings, oil seals, will makes gasket and as I said in you other thread I have also had 2mm spacers made up. I don't know if the following helps, I have the benefit of a blast cabinet and I do my own powder coating in a domestic oven from fleabay.

I did his to help me identify what I need:



Before:




After:






Before:



After:



I also had problems with these little tinkers.




I wanted to replace but couldn't find new with spigots so I have bought ordinary circlips and will have to modify pliers unless you find a source....? I have lots of photos and measurements of bearings and seals if that helps and you want to mail me. Pete
Thanks, Pete...Where did you source the bearings/crush spacer, etc.,?


Paul

Pete Mac

755 posts

136 months

Wednesday 20th April 2016
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hillclimbmanic said:
Thanks, Pete...Where did you source the bearings/crush spacer, etc.,?


Paul
Royce Power Transmissions, Harlow. Tel: 01279 421461. I spoke to a bloke called Bob, very helpful and seemed to know what he was talking about. I paid £128.46 for all bearings and seals but excluding the circlips and the gasket. If you mail me I will scan you the invoice and send it to you. Pete



stevesprint

1,114 posts

178 months

Wednesday 20th April 2016
quotequote all
stevesprint said:
This GKN Maserati Workshop manual may help, www.stevesprint.com/TVR-Griffith-Docs/GKN_diff.zip , one day I’ll merge the jpgs into one pdf.
Steve
PeteGriff has kindly merged the GKN manual into one pdf and is much more convenient
http://www.stevesprint.com/TVR-Griffith-Docs/GKN D...
Good Luck with those GKN rebuilds, you're both very brave.

hillclimbmanic

Original Poster:

610 posts

143 months

Thursday 21st April 2016
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Pete Mac said:
Royce Power Transmissions, Harlow. Tel: 01279 421461. I spoke to a bloke called Bob, very helpful and seemed to know what he was talking about. I paid £128.46 for all bearings and seals but excluding the circlips and the gasket. If you mail me I will scan you the invoice and send it to you. Pete
Thanks Pete...However, I've decided to have my diff and lt77s box rebuilt by Peter Reid...Two less headaches.!!

getmecoat

hillclimbmanic

Original Poster:

610 posts

143 months

Thursday 21st April 2016
quotequote all
stevesprint said:
PeteGriff has kindly merged the GKN manual into one pdf and is much more convenient
http://www.stevesprint.com/TVR-Griffith-Docs/GKN D...
Good Luck with those GKN rebuilds, you're both very brave.
...it appears that I'm NOT as brave as Pete, Steve..!!

Thanks though, for all your input; much appreciated

Paul

Pete Mac

755 posts

136 months

Thursday 21st April 2016
quotequote all
stevesprint said:
PeteGriff has kindly merged the GKN manual into one pdf and is much more convenient
http://www.stevesprint.com/TVR-Griffith-Docs/GKN D...
Good Luck with those GKN rebuilds, you're both very brave.
Steve, I'm not sure how brave really. All the gears on my diff look good and I've dismantled it in a logical way including all the shims. Measuring backlash is pretty straightforward.

Biggest problem I find is sourcing parts including the two drives shaft bearings, which in the end I bought 2mm. narrower as they don't make 19mm. width heavy duty bearings in that size any more. Found a little local machine shop, who made me 5 sets of 2mm shims. The other problem is those circlips but I am hoping ordinary circlips will work.

I'm not trying to save money, I just like doing it myself. Pete

hillclimbmanic

Original Poster:

610 posts

143 months

Thursday 21st April 2016
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Just found the photos of 'before'...




Pete Mac

755 posts

136 months

Thursday 21st April 2016
quotequote all
hillclimbmanic said:
Just found the photos of 'before'...



Looks alright, surprised you didn't just pop the body back as it is. Pete biglaugh

hillclimbmanic

Original Poster:

610 posts

143 months

Friday 22nd April 2016
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Pete Mac said:
Looks alright, surprised you didn't just pop the body back as it is. Pete biglaugh
Absolutely NOT, Pete.!!...

It needed a good T-cutting..! teacher

Did you notice the rear body mount, with NO mounting holes, or seatbelt mounts..??? eekeek

Edited by hillclimbmanic on Friday 22 April 06:33


Edited by hillclimbmanic on Friday 22 April 06:35

Pete Mac

755 posts

136 months

Friday 22nd April 2016
quotequote all
hillclimbmanic said:
Absolutely NOT, Pete.!!...

It needed a good T-cutting..! teacher

Did you notice the rear body mount, with NO mounting holes, or seatbelt mounts..??? eekeek

Edited by hillclimbmanic on Friday 22 April 06:33


Edited by hillclimbmanic on Friday 22 April 06:35
I didn't until you pointed it out.....! I won't ask the obvious but at least you had one less rusty bolt to loosen off when you lifted the body.

It's interesting to see that a previous owner has had a botched go at replacing the outriggers and the replacements obviously didn't last long. Why go to all that trouble and then fall over at the last hurdle?

There's also a lesson there about properly protecting your chassis. Great job Manic. Pete

hillclimbmanic

Original Poster:

610 posts

143 months

Friday 22nd April 2016
quotequote all
Pete Mac said:
I didn't until you pointed it out.....! I won't ask the obvious but at least you had one less rusty bolt to loosen off when you lifted the body.

It's interesting to see that a previous owner has had a botched go at replacing the outriggers and the replacements obviously didn't last long. Why go to all that trouble and then fall over at the last hurdle?

There's also a lesson there about properly protecting your chassis. Great job Manic. Pete
Thanks, Pete...I assume that you've read this thread, re: hot zinc thermal spraying, after blasting, and before the powdercoating?

A no-brainer, at £600 + vat...Especially as they forgot to include the + vat on the written quote, thus saving me £120.!!

Paul

Pete Mac

755 posts

136 months

Friday 22nd April 2016
quotequote all
hillclimbmanic said:
Thanks, Pete...I assume that you've read this thread, re: hot zinc thermal spraying, after blasting, and before the powdercoating?

A no-brainer, at £600 + vat...Especially as they forgot to include the + vat on the written quote, thus saving me £120.!!

Paul
Paul, I don't know if you've read my thread but I'm going the whole hog and hot dip zinc galvanising followed by powder coating as a finish (unless someone tells me there is a better finish). Many doomsayers on this one but there's a bloke in Poland who has done it many times successfully and despite the messages of doom, I have not come across anyone who has done it and found it to be a disaster. Anyway whatever the outcome I will report back. Pete

hillclimbmanic

Original Poster:

610 posts

143 months

Friday 22nd April 2016
quotequote all
Pete Mac said:
Paul, I don't know if you've read my thread but I'm going the whole hog and hot dip zinc galvanising followed by powder coating as a finish (unless someone tells me there is a better finish). Many doomsayers on this one but there's a bloke in Poland who has done it many times successfully and despite the messages of doom, I have not come across anyone who has done it and found it to be a disaster. Anyway whatever the outcome I will report back. Pete
That was the first thing that I thought of, until everybody said that it would warp...Best of luck, Pete; I'm sure that it will turn out fine.!!


Paul

hillclimbmanic

Original Poster:

610 posts

143 months

Saturday 23rd April 2016
quotequote all
Oh my poor finger...





Now to grind the valves in, and paint (NOT the valves! jester )





Edited by hillclimbmanic on Saturday 23 April 08:05

hillclimbmanic

Original Poster:

610 posts

143 months

Wednesday 27th April 2016
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A few more photos...