Clutch/Gearbox and Propshaft Assorted Modifications

The system consists of the clutch, gearbox, overdrive, and propshaft. The original driveline system included the following:

Clutch: 10” Borg and Beck hydraulic

Gearbox: “side-shift” 4 speed

Overdrive: Laycock de Normanville electric

Propshaft: Hardy Spicer universal joints

Flywheel: 28 lb.

Driveline Modifications

Toyota 5 Speed Conversion

Although I always enjoyed the Laycock de Normanville electric overdrive in my car, I knew my tranny needed to be rebuilt. Rather than go that route, I took advantage of Smitty’s five speed conversion kit and installed a Toyota gearbox in the Bloody Beast. The Toyota Gearbox is quite a bit lighter and folks say that it runs  a bit cooler than the original box.

Gearbox and Bell Housing Installed

Gearbox and Bell Housing Installed

You can use a number of different Toyota gearboxes from the non-turbo Supras or from several of the 2 wheel drive pick-ups. I used a W57 1998 Toyota Tacoma 4×2 VIN# 4TANL42N2WZ094878. Details are available in the restoration blog, but this pdf document put together by Tracy Drummond is very helpful. Drummond Five speed gearbox conversion.

The kit includes several custom components including a bell housing casting unique to the conversion.

The kit is no longer available from Smitty, but Pete Delaney now handles the product. His contact information is as follows as of July 10, 2012:

Stephanie & Pete DelaneyHealey 5 Speed
P O Box 561
Harrisburg, NC 28075
704-455-2585704-455-8504 FAX
Healey5Speedaol.com

Clutch Conversion

Many who have the early 3000s and who complete the 5 speed conversion also adopt the BJ8 9/12″ diaphragm clutch. It is less demanding on the left leg muscles. I went ahead and made this conversion while I was at it. This also requires using a BJ8 flywheel. I obtained a 24lb. lightened flywheel from Bill Bolton.

BJ8 lightened Flywheel

BJ8 lightened Flywheel

Slave Cylinder Bleeder Pipe Extension

Anyone who has bled a Healey slave cylinder knows that the bleed nipple is not exactly easy to get to. Doug Reid aka “Mr. Finespanner,” fabricated an extension for me that makes the job much easier with the bleeder actually accessed from the engine bay. This has now become a popular item used by many aficionados.

Slave cylinder bleeder

Slave Cylinder Bleeder Extension

Slave cylinder bleeder extension

Slave Cylinder Bleeder Extension

Custom Propshaft

Installing the Toyota 5 Speed does require making up a new propshaft, which I had done at a local speed shop. The propshaft does need to be balanced prior to installation.

Propshaft

Propshaft

 

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Chapter 32 – Cleaning and Trial Fitting

 

October 27, 2006

Jeremy’s Rotisseri

More Rotisseri Images –  The rotisseri really does make working on the underside of the frame so much easier. These are a few additional images of the assembly at work.

rotisseri 7

rotisseri 6

Rotisseri 9

rotisseri 1

anti-sway bar bracket

 

November 7, 2006

Jeremy’s Bodywork

Jeremy has continued to work hard on the final work on the frame/tub. He has done a very nice job with the judicious use of filler to give a nice finished appearance to the frame as if it was the body! Pitting on the outside of the kick panels and on the underbonnet inner fenders just looks great.

Frame blasted clean 1

Frame blasted clean 9

Frame blasted clean 10

fill primer 3

frame bodywork

frame bodywork 3

frame bodywork 2

frame bodywork 4

frame epoxy primer 1

fill primer 4

Final sanding 1

Final sanding 2

Final sanding 3

Final sanding 4

November 12, 2006

Engine Rebuilding

Water Pump – Although Jack Harper will be doing the engine rebuild, there are some items that I can take care of before I take the motor to him. I already sent the rocker arm assembly out for rebuild, and today I queried the internet healey list about their thoughts on the water pump. Was I better to rebuild my own or purchase an after market replacement? Those whose opinions I have come to count on recommended rebuilding my own and perhaps purchasing a new one to have as a spare. Bill Bolton, Peter Caldwell and Joe Curto were suggested as possible rebuilders. I had experience with all three but decided to call Peter since his lever arm Armstrong shock rebuilds will be on my car and because so many rave about the quality of his work.  He indicated that his company didn’t “officially” do water pump rebuilds, but they were getting ready to do a number of them and that I should send mine along His rebuild would be $75.00. I took mine off the motor – four nuts on studs and took the pully off the pump shaft. That required the use of the slide hammer, but was easily accomplished.

Water pump 1

Water pump 6

Water pump 8

Water pump 5

Aluminum Oil Sump – I ordered an aluminum oil sump from British Parts Northwest. After researching the sumps available from various suppliers. Others reported that the BPN sump did not require modification to the oil pump because it is a little deeper than the others. Of course, that also means it protrudes lower in the frame, but since my motor mounts are ¼” high I concluded that it would work best. Unfortunately, it arrived in pretty rouh shape with grinder marks on the exterior and some casting depressions. I sanded the body until most of the grinder marks were eliminated. Jeremy will glass bead blast and we will put a few coats of clear paint on it for protection.

aluminum oil sump 2

November 24, 2006

Jeremy’s Painting and Bodywork

Suspension and other little bits   To take a break from sanding the frame, Jeremy turned again to finishing some of the smaller parts that are to be painted gloss black. The following images show some of the work.

small primed parts 2

media blasted parts 2

small parts black 1

rear springs blasted 1

flywheel ready to paint

Rear Springs painted 1

Rear Leaf Spring Assembly – The leaf springs were painted semi-gloss. I put a layer of teflon tape between each of the leaves to provide for smoother action between each of the leaves. It should help to eliminate creaks and moans later. The finished products looked very nice.

Rear spring glide strips 1

Rear springs teflon tape

Rear springs completed

Smitty Toyota Transmission Conversion and Clutch Assembly – I wanted to see how the conversion assembly was going to fit so I decided to rmove the gearbox from the bell housing and set things up. The lightened flywheel from Bill Bolton had been cleaned up and painted just for some rust protection. I inserted the aluminum pilot bushing with bearing pressed in by using my lead knock-off hammer and soft drift to keep from damaging the aluminum.

Flywheel Smitty Pilot Bearing

Crank Rear Oil Seal – I will be purchasing an improved crank rear oil seal which will require some modification of the backplate, but for now I just wanted to see how things were going to fit, so I used the backplate as it was. I then fit the flywheel to the crank. Although not in the image below, I will be using the flywheel bolt lockdown tab washers.

Engine Backplate

Flywheel installed 1

Then I installed the Pressure plate using the Smitty supplied clutch disk (thicker than stock Toyota) and centered it using the alignment tool supplied in kit. After installing the bell housing it became obvious that the throw out arm did not have sufficient travel without hitting the back edge of the opening in the housing. I will add some length (others have suggested about 3/16” to the pivot fulcrum to gain the travel required.

Clutch plate assembly

Bell housing installed

Clutch arm pivot 2

Throw out bearing clutch arm 1

Throw out bearing clutch arm 2

throw out arm 1

November 27, 2006

Back to the Engine Work

Tach Drive Housing – Detached the tach drive housing from the block. Three ¼” x 7/8” Hex head bolts with flat and lock washers. As per the manual, pulled out the gear drive with a 3” x 5/16” bolt attached to the threaded hole in the drive. Will need to install new rubber seals in the unit.

Tach Drive assembly 1

Tach Drive assembly 2

Tappet Cover Plates – There are three covers. The rear cover with the breather pipe is secured with one 1 ¼” x 5/16” hex head bolt with a copper washer and a cork gasket. The center cover is also attached with one 1 ¼” x 5/16” hex head bolt with copper washer and cork gasket. The front cover which is much heavier to support the weight of the generator is secured with five ¾” x 5/16” hex head bolts with copper washers.

Rear Side Cover

Center Side Cover

Front Side cover 1

Heater Water Valve –  Secured by two 5/8” x ¼” hex head bolts and washers.

Heater water valve

Blanking Plate – Located on the right side of the motor. Two hex head bolts 5/8” x 5/16.” Course threads with copper washers.

Blanking Plate

Oil Pipe Fitting, back side – One hex head bolt, 3/8” x 5/16” with copper washer.

Oil Feed Pipe

Oil Feed Bolt

Oil Pressure Relief Valve – One 1 1/8” (wrench size) hex head bolt x 3/8” long. Copper washer with spring and cup.

OIl Pressure Relief Valve 2

OIl Pressure Relief Valve 1

Plug for Oil Filter Feeder Hole – Right side of block. One 7/8” (wrench size) hex head bolt 3/8” long, with copper washer.

OIl Filter feeder hole plug 1

OIl Filter feeder hole plug 2

Union for Oil Gauge Pipe – Right side of block. Nut with pin hole. Fiber washer.

Oil Pressure Pipe Union 1

Oil Pressure Pipe Union 2

Block Drain Tap – Brass with fibre washer.

Drain Tap 1

Drain Tap 2

Carb Drain Pipe Brackets – Located at the second and seventh oil sump mounting bolts from the font of the block. ¼” nuts used to secure the clips.

Fuel Drain Pipe Clip 1

Fuel Drain Pipe Clip 2

Fuel Drain Pipe Clip 3

November 27, 2006

Jeremy’s Painting and Bodywork

New Seam Sealer and Prep for Chip Protector   Jeremy finished the sanding work and installed seam sealer. 

Seam sealer finished 1

Seam sealer finished 2

Seam sealer 4

Seam sealer 1

Seam sealer 2

Seam sealer 5

Seam sealer 8

Chip Guard for the Wheels Wells – We decided to use a chip guard product in the wheel wells and will also use the same product under the front portion of the front shroud. It turned out very well, nice even coverage. The final red paint will then be sprayed over the chip guard so that it isn’t quite so obvious. 

Chip Guard 1

Chip Guard 3

Chip Guard 4

We also drilled access holes in the frame and outriggers and applied an etch primer as well as paint to protect against rust. I will need to decide if I will plug the holes or just leave them open.

Engine Work Again – I received the rebuilt rocker arm assembly from The Rocker Arm Specialists and could not have been more pleased. The installed the new pedestal with the threads for the oil pipe and rebushed the whole mechanism. It looks great as well.

Rebuilt rocker assembly

Rebuilt rocker assembly

Oil Pump Removal and Inspection – After dropping the oil sump and cleaning it up a bit, I removed the oil pump to inspect it. I think I will go ahead and replace it to be on the safe side. It is the gear type pump, but others have recommended the rotary pump and since the fit is interchangeable, I think I will take their advice.

Oil Pump 5

Oil Pump 2

Oil Pump 8

Oil Pump 7

 

 

 

 

 

Chapter 29 – Cleaning and Trial Fitting

September 4, 2006

Initial Work on the Engine and Driveline

Clutch and Flywheel – Many who have used the Smitty gearbox conversion have suggested fitting a later BJ8 diaphragm clutch rather than the the spring actutated clutch originally used on the BT7. Now seemed to be the time to do it, so I ordered the clutch plate assembly from Moss. I also took the suggestions of others and sent my flywheel to Bill Bolton in exchange for a lightened (now 24 lbs.) BJ8 flywheel. The wheel that came back from Bill was pretty rusty in the non-contact surface area so a little time was spent with rust remover and the drill and wire brush. Even after cleaning, I still think I will give it to Jeremy to media blast the non-contact surfaces.

BJ8 lightened Flywheel 1

BJ8 lightened Flywheel 2

September 6, 2006

Jeremy Turner’s Work Continues

Rear shroud with filler 2

Rear shroud primed 1

Rear shroud primed 2

rear shroud final primer

Shrouds – Jeremy is working on the “Bloody Beast” with the idea of completing all the priming and final panel fitting withn two weeks. He is focused on my car completely. He has just completed the body filler and priming for the front and rear shrouds.

Front shroud bodywork 2

front shroud poly primed

Front wing final primer

right front wing final primer

Because Martin Jansen did not put the bumper bracket mounting tubes all the way through the frame, Jeremy needed to weld some short tubing into the inside of the frame rails to mount the Cape International driving light/tow hook.

tow hook mount

tow hook mount 2

And now, don’t those Lucas drving lights look nice!

Fitting driving lights 2

Fitting driving lights 1

Fitting driving lights 3

Final priming on doors and rear wings.

Doors final priming

Rear wings final priming

September 11, 2006

Jeremy Turner’s Work Continues

Before going any further, it was a good idea to check the fit of the radiator, fan and the body and bonnet grilles to ensure a good fit. The radiator cap did hit the bonnet so some more work was required to adjust the radiator and shroud. We ended up with about 1/8” clearance between the radiator cap and the bonnet. The bottom trim piece on the body grille wold not fit properly so it was decided to have the original rechromed.

Radiator installed

Fan installed

Bonnet grill installed

Shroud with grille