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craggle
21-02-12, 02:26 PM
Hi Chaps

Has anyone got a spare set of Rover V8, SD1 or 3.9 / 4.2 head bolts and washers lying around in the garage?

I'm building a 4.6 Rover at the minute and don't want to use the correct, one use only stretch bolts as I don't trust them to be done up to an even torque and the "Customer" doesn't need the £160 expense of a set of ARP studs.

The heads are 10 bolt versions so all I need is the 6 longer bolts (3.9" long) and 14 slightly shorter ones. (2.7" long)

I can send a cheque or Paypal to cover the cost plus postage.

Cheers

Craig.

Sidecarbod
21-02-12, 06:24 PM
Try JRV8 ;)

aaronjb
21-02-12, 06:34 PM
I have 3/4 of a set in the garage if that's any use to you ;) 4 of them are holding the 428 to the engine stand, though.. :lol:

tommy-boy
21-02-12, 07:00 PM
I'll take a deeks in my bolt box in next day or so. I'm sure I have a full set from a 3.5 RV8 SD1 block that I stripped for parts and pieces.. I used the block for a coffee table and the heads are still sat under my bench. If I recall they wernt in to good condition, but I'll try to remember to get them out. I still need to post off a water pump for another member on here... Keep forgetting. Ops. Lol

craggle
21-02-12, 07:04 PM
Cheers all,

I do intend to send an email to Jim but wasn't sure if he'd have used or new bolts. We are trying to build on a budget and a new set of bolts is almost as much as a stud kit, hence my hope that there is loads of used sets lying about in garages.

If I need them Aaron I'll send you a PM and if you do find a set Tommy, Let me know and I'll take them off your hands. :)

Thanks

Craig.

Sidecarbod
21-02-12, 07:40 PM
I'm 100% sure that Jim will have second hand bolts available and I'm 110% that he will charge you a fair price. Mind you if someone will give you them for free I doubt that Jim can match that price!

craggle
21-02-12, 07:45 PM
I'll send Jim a message tomorrow then and have a think if there is anything else I need to buy at the same time. :)

While I'm here does anyone know if the SD1 clutch is 9" or 9.5" diameter?

Craig.

Sidecarbod
21-02-12, 07:50 PM
I'll send Jim a message tomorrow then and have a think if there is anything else I need to buy at the same time. :)

While I'm here does anyone know if the SD1 clutch is 9" or 9.5" diameter?

Craig.

9.5" I believe. If you want a decent clutch for your 4.6 don't fit a standard SD1 pressure plate, you could fit one from an LDV van or an uprated AP one.

craggle
21-02-12, 07:57 PM
Well, It's a 4.6 that is getting an SD1 flywheel with a Land Rover, 4 cylinder clutch plate and SD1 clutch cover. It's bit of a miss match of parts to mate it up to a Land Rover 4 speed gearbox with manual overdrive. Hope the box holds together!

I knew it was a Land Rover clutch plate but they vary between 9" for the petrol and 9.5" for the diesel versions. Guess it's a Diesel plate I need then.

Cheers

Craig.

craggle
21-02-12, 08:15 PM
I remember now, It's the splines that make the difference on the gearbox input shaft. The Land Rover box only has 10 splines on it and the SD1 input shaft is a lot finer than that, Hence the reason for the Land Rover clutch plate.

It was a long time ago I changed it from a little 4 cylinder to the V8 engine. :)

Craig.

tommy-boy
22-02-12, 10:14 AM
How are these puppy's??http://i98.photobucket.com/albums/l242/escort-23/e76c61cd.jpgFrom the top.6 x 3.914 x 2.7The 6 bolts below are mine! Your not having them. LolAny good?

craggle
22-02-12, 10:18 AM
Ohhhhh, They look spot on, Complete with washers too. :)

I'll send you a PM but could you post them? I can pay by Paypal or send a cheque to cover the postage and what you want for the bolts.

Cheers

Craig.

tommy-boy
22-02-12, 11:15 AM
PM back mate.

You some sort of bloody astronaut or something. Whenever people send me there address i atomaticly Google street view it to get a look (and because i'm a nebby git) it looks like some crazy made space center... probing little green men i presume? LOL

russell_ram2
22-02-12, 11:56 AM
Craig,

Just a point, but if you're only going to torque them up in the (very) old fashioned way then there is absolutely no risk in re-using the new type stretch head bolts. You will get them no where near yield using std torque levels.

The victorian torque wrench method is much more likely to result in 'not to be trusted to be done up to an even torque' than the modern 'torque plus angle' service version of the pretty standard computer controlled yield tightening of fixings that is used worldwide in manufacturing these days. That's why it is used - for consistancy.

HTH

Russ

Sidecarbod
22-02-12, 12:12 PM
Some bloke on the V8 forum did run a test on a load of stretch bolts, the results were not good, I can not remember what the test was!

The bolts in question were all from ebay, the point being that Rover stretch bolts may well be fine but dodgy bolts from ebay well not be so good!

robinj66
22-02-12, 12:15 PM
Hi Russell
I'm soon (hopefully) to be in a similar position to Craig. I too was intending to try and find a set of "non-stretch" bolts. If it's ok to re-use the newer "stretch" bolts then I will use them. I assume you are talking about the 3 stage (?) tightening sequence used on EG, the SD1 engines but what do you mean when you say it is likely to result in 'not to be trusted to be done up to an even torque' . Do you mean that non-professional torque wrenches are likely to be less accurate or just that the manufacturers decided we (home mechanics) are all cack-handed and therefore less likely to be able to achieve the necessary torque settings.

Sorry if I'm missing something obvious (it's almost time for my afternoon nap:) )

Confused:confused:
Robin

JonnyT
22-02-12, 12:21 PM
I've bought a set of ARP head studs I think (its been a while and can't remember what I have and haven't bought!) but I have a full set from a 3.5 going if anyone wants to PM me. I've no idea what they have been through in their life and the engine had done 120k miles.

Free to a good home though.

craggle
22-02-12, 12:42 PM
You some sort of bloody astronaut or something. Whenever people send me there address i atomaticly Google street view it to get a look (and because i'm a nebby git) it looks like some crazy made space center... probing little green men i presume? LOL

Ha, Yes, I work for University College London designing scientific instruments for ground based experiments and space flight experiments too. It sounds a lot more glamorous than it is though, I'm really just a CAD user! :)

Got the PM, I can do a bank transfer easy enough once you let me know the postage and I'll bung a bit on top for the bolts.

Cheers

Craig.

craggle
22-02-12, 12:52 PM
I have tried using a new set of stretch type bolts before and they were sold as OE parts but where they came from, who knows.

I was less than confident in doing them up though. I followed the Land Rover instructions and torqued them all up to 15lbs/ft or whatever the loading was then turned them the required angle using a protractor on the socket extension.
Some bolts turned the 90° really easily and didn't feel tight and others were impossible to turn the full amount. I just wasn't convinced that they were all done up to the right loading so ended up torquing them up instead using the SD1 figures. Haven't leaked yet although the vehicle in question is now sold.

Out of choice I'd be fitting ARP studs as I did when I rebuilt a friends TVR 4.0 engine. Those were lovely quality and I was 100% convinced they were done up evenly and correctly. I still have the outer 8 studs and nuts lying about though as they weren't needed.

The big end bolts in the 4.0 and 4.6 engines are also torqued to 15lbs/ft then turned 80°. They feel fine though and I'm quite happy doing those.

I'll use the SD1 bolts to the SD1 torque loadings I think and that should keep it in place I hope.

Craig.

tonym
22-02-12, 12:56 PM
I've used stretch bolts many times and never had any problems with doing them up or any leakage. I did only ever use genuine LR bolts though HTH

craggle
22-02-12, 12:57 PM
Robin

The problem with a torque loading is and always has been, that the correct torque depends on so many factors. A rough cut thread in the block or on the bolt can cause more friction than a smooth cut one and oil makes a huge difference. Torquing the same bolt dry and greased up is a completely different thing.

I can see why most people use the angle method now, it is a more accurate means of getting a load applied to a bolt and it does away with the need for special tools that should be calibrated occasionally but the one time I tried the Rover stretch type, head bolts I was less convinced they were correct, Maybe I just got shit ones?

Craig.

Sidecarbod
22-02-12, 02:21 PM
I've bought a set of ARP head studs I think (its been a while and can't remember what I have and haven't bought!) but I have a full set from a 3.5 going if anyone wants to PM me. I've no idea what they have been through in their life and the engine had done 120k miles.

Free to a good home though.

I'll take them off your hands! To be honest mate you should not give them away, they are a good kit of kit!

Sidecarbod
22-02-12, 02:26 PM
Hi Russell
I'm soon (hopefully) to be in a similar position to Craig. I too was intending to try and find a set of "non-stretch" bolts. If it's ok to re-use the newer "stretch" bolts then I will use them. I assume you are talking about the 3 stage (?) tightening sequence used on EG, the SD1 engines but what do you mean when you say it is likely to result in 'not to be trusted to be done up to an even torque' . Do you mean that non-professional torque wrenches are likely to be less accurate or just that the manufacturers decided we (home mechanics) are all cack-handed and therefore less likely to be able to achieve the necessary torque settings.

Sorry if I'm missing something obvious (it's almost time for my afternoon nap:) )

Confused:confused:
Robin


I don't think that you can re-use stretch bolts, you could use new ones and just torque them to 68ftlbs or whatever it is for a Rover. Once you use them as intended they will have yielded. Mind you this may have then work hardened them so you could use them as normal bolts, maybe just not as stretch bolts again. I'll get me hat!

Russ will answer this for sure.

robinj66
23-02-12, 09:46 AM
I don't think that you can re-use stretch bolts, you could use new ones and just torque them to 68ftlbs or whatever it is for a Rover. Once you use them as intended they will have yielded.

That was my understanding - hence my confusion

tommy-boy
27-02-12, 07:24 PM
Have you got these yet mate?

was sent standed parcle but i dont trust the divys!

craggle
27-02-12, 07:38 PM
Hi Tommy

Sorry for the delay, I've been away from work for a while and just got back home after a training course so they should be at work waiting for me tomorrow when I get in I guess.
I got your PM with bank details too, I'll transfer some cash your way tomorrow too if that's okay. :)

Thanks again

Craig.