prop width between auto and manual??? help

[ric325i]

jaffro just called me asking if the auto pror in thinner than a manual prop???

he has a convertible which he is doing a m30 conv on and he is cutting his prop down to shorten it (i dont think im the best person to ask)

he wants to keep the centre bearing from the e34 as the e30 one is dead but does is the auto prop any different???

he says the prop from the e34 can slide over the e30 auto prop its that narrow!

any advice???

he is not on line thats why im asking for him

[jaffro]

cheers ric im bk now. its driveing me mad i just want to give up on it

[ric325i]

dont even think about it boy! it will be an easy fix if you need a manual prop!

just means we may need to make a trip to chris-w? i could do with a few things so it would be good.

just think of teh power whwn your done!!!! and you know how good they sound

[jaffro]

chris w not got 1 lol i already rang him a asked

[ric325i]

he doesnt have a manual prop!!! oh dear.

there will be a way.

if we dont get an answer here then i can measure mine before i come round your tomorrow - if your going?
or just tx the size but i would like to know if there is a difference.

chris w not got 1 lol i already rang him a asked

did he say there is a difference between auto and manual?

[jaffro]

he said there different length

[ric325i]

some one needs to tell him its about the girth.

[jaffro]

lol i did

[Chris-W]

Carl talked about very little else whilst on the phone, but refused to measure his existing shaft for me.

[jaffro]

oo im blushing haha il measure it now a post up

[jaffro]

e34 circumfrence 8 inches. e30 6.5 inches

[jaffro]

think il just have 2 get a 325 prop a start again

[johnl320]

Guys I'm about to butcher an e34 prop and e30 prop for my m30 conversion. The centre bearing from both are the same part number. The front half of the props are both the same diameter.
So why not cut the front flange off the e34 and get it welded on to the e30 one at the right length?
Yes the rear section is thinner than the e34 but there are plenty of high powered 2.7/ 2.8 and turbo creations running around with no poblems using the same prop.

Just a thought.

john

[jaffro]

its the front section on mine thats thinner mate the backs the same diameter as the e34.

[johnl320]

I'll take a piccy of mine tomorrow. its off a 318i manual 1988. Plenty of them dead in the scrapyard.what is yours off?

john

[jaffro]

mines off my 320 auto. i just found a thread about a homemade prop a a guy says he's useing a bogo 325 prop???

[johnl320]

Better find a manual then mate, that suprises me the auto one being thinner front section but fatter rear. You'll have to check if the centre bearing off the e34 fits the cab. My car is pre facelift so it won't cos the distance between the two mounting holes is different. Cabs shells are odd ( mostly prefacelift) so you need to measure that

john

[jaffro]

the centre bearing is the same thank god.

[johnl320]

I'll be sticking a new centre bearing on prior to it going away to get balanced. Luckily for me I can get it cut and welded at work, just can't get it balanced but at least I've managed to keep the cost down a little.
Why not put up a post in the wanted section for the front half of a manual prop. I got mine from Spadge ( the E34 one ) for twenty quid or something.

john

[jaffro]

ive just managed to get one thank god. hopefully pick it up sunday

[johnl320]

[beardymat]

that`ll be the one on my back garden then

thing is ive just checked part no.s on real oem and a 320 (which this one is) has a different part no to a 325 prop. will this be any use to carl as i dont want to waste his time

[johnl320]

Should be okay, its a different part number because the 325 one is shorter due to it having a bigger gearbox than the 320. Lenght isn't too important as its getting cut down anyway. Its all about the girth

john