Search found 15 matches

by richyb66
Thu Sep 26, 2019 8:33 pm
Forum: Engines Area
Topic: 3.9 later intermin Serp Engine project
Replies: 5
Views: 196

Re: 3.9 later intermin Serp Engine project

Here's another more detailed picture. https://i.postimg.cc/MprpmyBc/DSC-0408.jpg The spacer is 20mm thick. It's bolted on through the centre of the tensioner into a hole drilled and tapped in to the lifting eye and also in to the head with a longer bolt through the existing lifter eye hole. Not visi...
by richyb66
Thu Sep 26, 2019 8:12 am
Forum: Engines Area
Topic: 3.9 later intermin Serp Engine project
Replies: 5
Views: 196

Re: 3.9 later intermin Serp Engine project

I'm running just and alternator and water pump on a serp setup and I repositioned the standard tensioner.

I posted some pictures in this thread:

viewtopic.php?f=12&t=15309&p=117028#p117028

Done over 8k miles on this setup with no issues.
by richyb66
Tue Apr 16, 2019 4:29 pm
Forum: Engines Area
Topic: Alternator and Tension Pulley assembly problem. can you Help?
Replies: 3
Views: 188

Re: Alternator and Tension Pulley assembly problem. can you Help?

You really want a sprung tensioner with a multi vee belt. Alternator should be mounted solid. What is the black plastic pulley top right driving? I used the standard 4.6 sprung tensioner and moved it from underneath the alternator (where it clashed with the steering shaft and moved it to the front o...
by richyb66
Thu Apr 11, 2019 11:50 am
Forum: Drivetrain & Transmission Area
Topic: LT77 Identification - again
Replies: 1
Views: 220

Re: LT77 Identification - again

LDV400 if it's the same as the one mentioned in the 4th post here:

viewtopic.php?t=7540

if it is, then the low 1st gear should be easy to establish and might determine it's suitability for what you're using it.
by richyb66
Wed Feb 27, 2019 12:34 pm
Forum: Drivetrain & Transmission Area
Topic: Lt77 from a jaguar details?
Replies: 2
Views: 245

Re: Lt77 from a jaguar details?

It could be but isn't there a suffix letter at the end of the number? That would give a better indication of what the internals are. Ratios could well be different to SD1 but knowing BL, they probably aren't.
by richyb66
Mon Dec 10, 2018 4:20 pm
Forum: Drivetrain & Transmission Area
Topic: Rover SD1 Clutch Slave Fitting
Replies: 7
Views: 635

Re: Rover SD1 Clutch Slave Fitting

I'm amazed anyone at rover in the 70's knew what a metric thread was. When I fitted my helix clutch last winter I had to swap the SD1 Master Cylinder for a bigger bore Defender V8 one because you couldn't physically press the clutch pedal. The inlet sizes were different so I ended up getting a new h...
by richyb66
Mon Dec 10, 2018 9:11 am
Forum: Drivetrain & Transmission Area
Topic: Rover SD1 Clutch Slave Fitting
Replies: 7
Views: 635

Re: Rover SD1 Clutch Slave Fitting

Pretty sure it's 7/16" UNF
by richyb66
Tue Oct 30, 2018 7:54 am
Forum: Drivetrain & Transmission Area
Topic: LT77 R380 parts interchange?
Replies: 2
Views: 438

Re: LT77 R380 parts interchange?

In a work no, R380 is heavier duty so the gears are wider and the bearings are bigger. Unless the R380 was in a pretty shocking state I think you'd struggle to find an LT77 in better conditions. I'm running an R380 now and I've rebuilt a few LT77's which can be challenging because a lot of LT77 bits...
by richyb66
Wed Sep 26, 2018 10:17 am
Forum: Drivetrain & Transmission Area
Topic: T56 to RV8 conversion.
Replies: 27
Views: 2701

Re: T56 to RV8 conversion.

The box does look huge but then strength generally doesn't come in small packages. If you've got the space to fit it and the determination to do it, it's got to be a worthwhile swap.
by richyb66
Wed Aug 01, 2018 7:56 am
Forum: Drivetrain & Transmission Area
Topic: Gearbox ID
Replies: 1
Views: 276

Re: Gearbox ID

CL prefix indicates it's a TR7 5 speed box. I've rebuilt a few LT77 boxes including TR7 and SD1 versions and haven't noticed any difference internally between them (other than speedo drive ratios). My suspicion is that Leyland Transmission (LT) supplied the same boxes to both the Rover and Triumph d...
by richyb66
Sun Feb 04, 2018 12:58 pm
Forum: Drivetrain & Transmission Area
Topic: LT77 to R380 swap
Replies: 5
Views: 623

Re: LT77 to R380 swap

Rear tyre diameter is on the limit with 205/50 15's so not really on option.

Diff ratio change would be a last resort, the choices for 7.5" diff are far more limited and I'm not prepared to go down to 7" and have to swap driveshafts as well.
by richyb66
Sun Jan 21, 2018 10:33 pm
Forum: Drivetrain & Transmission Area
Topic: LT77 to R380 swap
Replies: 5
Views: 623

Re: LT77 to R380 swap

Yes, I've cut and shut a remote linkage 25mm and it works fine.
by richyb66
Sat Jan 13, 2018 12:54 pm
Forum: Drivetrain & Transmission Area
Topic: LT77 to R380 swap
Replies: 5
Views: 623

LT77 to R380 swap

I'm currently running a suffix C LT77 behind a 4.6 RV8 in my Robin Hood kit car. I rebuilt the box myself with new bearings, synchros and oil pump and it's been fine for around 4K miles. The only real issue it that it's rather low geared in 5th (0.83:1) because I'm running A 3.64 7.5" Cosworth Scorp...
by richyb66
Sat Jan 13, 2018 12:36 pm
Forum: Please Tell Us About Yourself
Topic: Hello
Replies: 2
Views: 338

Hello

Hi Richard here. I've got a Rover 4.6 in my Robin Hood 2B kit car. Running Piper 270 cam on standard injection and Emerald ECU. Currently running an LT77 which is soon to be uprated to an R380

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