Manky Monkey Motors

Technical Section => Trike Tech => Topic started by: Manky Monkey on May 13, 2011, 01:13:29 PM



Title: Reliant engine bolts
Post by: Manky Monkey on May 13, 2011, 01:13:29 PM
Someone recently asked what sized bolts are used on Reliant engines. Can't find the thread now, but while perusing our extensive filing system, (a big heap of paperwork in the spare bedroom), this morning, I came across this list, sent to me a few years ago by Mr Flap when we were ordering parts for his orange "Flapster" trike.
Thought it might be of use to fellow Reliant triketeers.

Timing cover

Bolts
1/4" unc x 2"   2 off
1/4" unc x 3/4"   5 off
Nyloc nuts
1/4" unc   2 off

Cylinder head  

Nuts
3/8" unf   6 off

Gearbox

Top plate      1/4" unc x 3/4"   8 off
Top gearbox to engine      5/16" unc x 3"   2 off

Thermostat housing

1/4" unc x 3/4"   3 off

Distributor clamp

1/4" unc x 1/2"   1 off

Carburettor to inlet manifold

5/16" unc x 1/2"   2 off

Inlet & exhaust manifolds etc

5/16" unc


Title: Re: Reliant engine bolts
Post by: Manky Monkey on May 13, 2011, 01:17:29 PM
If you know any more, such as the rest of the gearbox to engine bolts, rocker cover nuts etc, we'll add them to the list.


Title: Re: Reliant engine bolts
Post by: nabsim on May 16, 2011, 12:40:18 PM
It was me asked on someones thread asking about bolts for a bike engine. Thanks for that Andy, will get some stailness ones ordered up for reliant trike. I am crap with imperial threads, shouldn't be cos it was imperial when I was doing my apprenticeship bu thad nowt to do with them for 40 years inbetween :)


Title: Re: Reliant engine bolts
Post by: Manky Monkey on May 16, 2011, 09:55:50 PM
Metric measuring & decimal money came in while I was in secondary school, so I learnt kinda half n half. Even now, when I measure something I'll write it down half in Imperial, half in Metric  -2 5/16" x 15mm etc!


Title: Re: Reliant engine bolts
Post by: nabsim on May 17, 2011, 12:47:48 PM
Cant remember exact year it came in, it was after I started work in 68 but not that many years probably71ish? You still at secondary school eh youngster? :)

We only used imperial at the machine shop I was apprenticed in and I am almost certain it was the same on day release at Brooklands. For the last gawd knows how many years I have used both though and not really a problem, its the Whitworth fine and coarse and BA and everything else that stumps me.


Title: Re: Reliant engine bolts
Post by: Manky Monkey on May 17, 2011, 11:08:51 PM
I left school in '78.  :)


Title: Re: Reliant engine bolts
Post by: nabsim on May 18, 2011, 12:50:45 PM
Bloody eck, you is young then, or did you stop on. Left at 15 in my day


Title: Re: Reliant engine bolts
Post by: Manky Monkey on May 18, 2011, 10:29:28 PM
 ;D I am but a mere slip of a lad.


Title: Re: Reliant engine bolts
Post by: nabsim on May 19, 2011, 12:36:57 PM
hmmmmmmmmmmmm, may be younger but mere slip??? ;)


Title: Re: Reliant engine bolts
Post by: trikerpete on September 26, 2011, 07:20:25 PM
Hi
    Does anyone know the sizes/threads on the eight studs/nuts that hold the diff housing together?
More to the point...where I can get a set from?
Cheers
 8)


Title: Re: Reliant engine bolts
Post by: steve brock on October 03, 2011, 07:25:39 PM
Cylinder head bolts can they be nyloc stainless???


Title: Re: Reliant engine bolts
Post by: trikerpete on October 04, 2011, 08:55:29 AM
Cylinder head bolts can they be nyloc stainless???

Not sure I'd use nylocs, possibly the nylon could soften with heat.


Title: Re: Reliant engine bolts
Post by: spanners on October 04, 2011, 09:47:56 AM
DONT USE NYLOCS ON HEAD STUDS  well i wouldnt,,

you get what i would call a false feel when torqing down the head  as the nyloc bite,s the thread  giving the torque wrench a false feel


Title: Re: Reliant engine bolts
Post by: Manky Monkey on October 04, 2011, 09:52:45 AM
The cylinder head nuts came loose on my last Reliant trike & left me stranded at the side of the road one night. So I now torque them down then add a second nut on top to be sure. The second ones are dome nuts, which aslo hide the ends of the steel studs.


Title: Re: Reliant engine bolts
Post by: trikerpete on October 15, 2011, 06:37:50 PM
Hi
    Does anyone know the sizes/threads on the eight studs/nuts that hold the diff housing together?
More to the point...where I can get a set from?
Cheers
 8)

I ended up with 1&5/8" long x 5/16 UNC/UNF studs


Title: Re: Reliant engine bolts
Post by: trikerpete on October 15, 2011, 06:39:21 PM
Does anyone have the size/thread for the 2 nuts that hold the rear hubs onto the halfshafts?
Cheers


Title: Re: Reliant engine bolts
Post by: terry t on October 15, 2011, 06:50:36 PM
Does anyone have the size/thread for the 2 nuts that hold the rear hubs onto the halfshafts?
Cheers
Hi Pete there 5/8" unf nye locks


Title: Re: Reliant engine bolts
Post by: trikerpete on October 15, 2011, 07:00:32 PM
Thank you for that Terry :)
Hope all is ok with you.
Take care
 8)


Title: Re: Reliant engine bolts
Post by: archiebrown on January 09, 2012, 09:33:05 PM
Hi, I need to replace one of the oil sump bolts as the thread is stripped in the case. should I use a heli coil or tap out and replace with a bigger bolt please?
Either way does anyone know the size of the original and what I should replace it with please.
The engine is a Reliant 850 and I have a new sump and gasket on order.
Thanks Archie


Title: Re: Reliant engine bolts
Post by: one arm bandit on March 14, 2012, 08:44:30 PM
5/16 unf x3 cylinder head
5/16 unf x2 rocker cover ;)


Title: Re: Reliant engine bolts
Post by: one arm bandit on June 10, 2012, 08:56:15 PM
anyone know what size nut around the diff casing want to change to ss domes also the gear box top cover bolts?? thanks in advance ;)


Title: Re: Reliant engine bolts
Post by: spanners on June 10, 2012, 09:13:24 PM
anyone know what size nut around the diff casing want to change to ss domes also the gear box top cover bolts?? thanks in advance ;)
diff = 5/16 unf same as rocker cover if my memory serve,s me correctly,
g/box top i think is 1/4  but check if its fine thread ,,,if so  its unf again ,, if,, its coarse thread it could be unc,, sometimes when manufacturers tapped ally castings they went for a coarse thread as it wont strip as easy as a fine thread when in soft metal,,


Title: Re: Reliant engine bolts
Post by: one arm bandit on June 10, 2012, 09:23:31 PM
ok ile whip one out and check the thread thanks mike ;)


Title: Re: Reliant engine bolts
Post by: steven brock on December 13, 2012, 09:50:04 PM
Water pump, is that 5/16 unf also?


Title: Re: Reliant engine bolts
Post by: spanners on December 13, 2012, 10:51:49 PM
Water pump, is that 5/16 unf also?
the nuts are ,,


Title: Re: Reliant engine bolts
Post by: steven brock on January 14, 2013, 04:49:09 PM
Someone recently asked what sized bolts are used on Reliant engines. Can't find the thread now, but while perusing our extensive filing system, (a big heap of paperwork in the spare bedroom), this morning, I came across this list, sent to me a few years ago by Mr Flap when we were ordering parts for his orange "Flapster" trike.
Thought it might be of use to fellow Reliant triketeers.

Timing cover

Bolts
1/4" unc x 2"   2 off
1/4" unc x 3/4"   5 off
Nyloc nuts
1/4" unc   2 off

Cylinder head  

Nuts
3/8" unf   6 off

Gearbox

Top plate      1/4" unc x 3/4"   8 off
Top gearbox to engine      5/16" unc x 3"   2 off

Thermostat housing

1/4" unc x 3/4"   3 off

Distributor clamp

1/4" unc x 1/2"   1 off

Carburettor to inlet manifold

5/16" unc x 1/2"   2 off

Inlet & exhaust manifolds etc

5/16" unc

Do you know what thread the bobbins on the gearbox are 3/8 something ???


Title: Re: Reliant engine bolts
Post by: fifer on January 14, 2013, 08:57:27 PM
Front Engine mounting rubbers and gearbox rear mounting rubbers are the same at 3/8 UNF .
.
Maybe the new sections I am creating on my website might be of help , which include Reliant Workshop Manual containg info regarding threads and quantity ;
https://sites.google.com/site/fifersrelianthintsandtips/workshop-parts-manuals/workshop-owners-manuals-with-indexes


Gearbox Front mounting studs to engine plate are 5/16 UNC/UNF
.




Title: Re: Reliant engine bolts
Post by: steven brock on January 19, 2013, 09:51:04 AM
I got these nuts which are 3/8 20 tpi ! Which confused me, I think 3/8 unf is 24 or 26 tpi that's why I asked, I got new bobbins anyway and they came with nuts, hoorah.. Thanks fifer is a micro fishe available on line for the engine I wonder?


Title: Re: Reliant engine bolts
Post by: fifer on January 19, 2013, 07:40:33 PM
UNC/UNF sizes at ;

http://www.engineershandbook.com/Tables/uncunfthreadsperinch.htm


Quote
Thanks fifer is a micro fishe available on line for the engine I wonder?

Not as far as I know
Was it a parts list you were wanting ; If so available at

https://dl.dropboxusercontent.com/u/19393893/Reliant%20Rialto%20Parts%20Manual.pdf

.


Title: Re: Reliant engine bolts
Post by: IanH on June 26, 2014, 08:14:22 PM
Try namrick.co.uk they do all sorts.

Ian