Disassembling viscous fan

[MattF]

Woo hoo!! page 24.

Not any longer. It's neater to group minor variations of the subject
under this thread rather than starting a fresh topic each time there's a
brainstorm. If I did that, I'd have swamped the other sections by now.

With the shroud, trying to decide whether to skirt it with additional sheet
to cover the core completely, or do as below, (the Toyota one half way
down), and use brackets to extend across the rad but without extending
the actual shrouding. Opinions?

http://www.flex-a-lite.com/auto/html/black-magic.html

[BUSHWHACKER]

I would leave the sides open to allow air flow when the engine/fan is off.

[MattF]

I would leave the sides open to allow air flow when the engine/fan is off.

Glad I asked. I'd never considered that bit.

[mud skipper]

well boyos its done

i have blown another £160 with Toyota and bought a new viscous fan unit, btw my fan is already a 7 blader and its date stamped 1997 so is not original,

any way all is cool, i fitted the fan this morning, test drove the vectra dinner time (piece of cr@p) and tested fan out this afternoon, 11/2 mile 1in5 hill with brakes on for last 200 yards to force it to overheat and still only a slight movement on the gauge, going to stockport next weeend with caravan so that will be the ultimate test, before with the kenlowe the hill would invoke overheat three quarters of the way up=a result

[MattF]

Glad to hear you've got it sorted John. Doesn't speak volumes for the other fan.
I'd definitely be on the phone to them come Monday.

[mud skipper]

watch this space
i will be ringing them on MONDAY
i want my money back, its a pity i cannt get reimmbersment for all the time and hassle, only if i lived accross the pond, there i would be awarded a new car.(4 gen please)

[mud skipper]

MattF you been a busy boy 1000+ posts and most of them on this thread lol


anyway guys and girls a big diolch yn fawr from me to you for your help and from keeping me on the surf and narrow, it maybe old and it maybe a japanesse reject but i love her (guess who is having a celebratery drnik
john

[MattF]

MattF you been a busy boy 1000+ posts and most of them on this thread lol

Bugger. Reached post whore status and didn't even notice till you mentioned it.
I've made it.

anyway guys and girls a big diolch yn fawr from me to you for your help and from keeping me on the surf and narrow, it maybe old and it maybe a japanesse reject but i love her (guess who is having a celebratery drnik
john

I bet the big grin whilst driving here has reappeared too.

[MattF]

watch this space
i will be ringing them on MONDAY
i want my money back, its a pity i cannt get reimmbersment for all the time and hassle, only if i lived accross the pond, there i would be awarded a new car.(4 gen please)

Good to hear. After all the hassle you've had, they can hardly argue the toss
about it being a suitable replacement for cooling the Surf. Not much consolation,
but at least it'll be a good archive reference for anybody thinking of taking the
same path in the future.

[MattF]

Wanting another bit of advice, if I may chaps. Been scr*pyard delving again
today, and managed to get hold of a dual 12" puller fan assembly. (Out of a
Jaguar, no less). One of the blades has a small piece nicked out of it, a v
shape less than an inch wide. Would it be best to repair it with a bit of fibreglass,
or just leave it as is? Apart from that and a slight dent in the rear of one of the
motor housings, it's in lovely nick. Anyhow, getting back to the point, , which
of the following two options would you suggest to be preferable?

1) Use the last fan assembly I picked up which has about a 14-15" single fan,
with a shroud that will cover approximately 2/3 to 3/4 of the radiator.

2) Use this latest dual 12" fan assembly which has a shroud assembly which
is a gnats larger than the radiator.

Both of them require some minor modding. Adding extended brackets onto
the first unit to get it to span to the rad shroud mounting points, or slightly
extending the rad shroud mounting points to get this latest unit to fit. Also,
does the engine tend to move about much in the engine bay during running?
Just wondering, as this Jag unit won't leave much clearance between itself
and the pulley, so wondered if I'm liable to hear crunching. Which option
would you suggest would be the better to try?

Thanks once again.

[BUSHWHACKER]

[QUOTE=MattF] Also, does the engine tend to move about much in the engine bay during running? QUOTE]



Yep, thats why there is a flexible hose from the air filter housing to the engine.
If you can, try and mount the fan to one side of the rad like the standard Toyota one. When driving at motorway speeds, the natural airflow will most likely be greater than what the electric fan will produce.
Also, I noticed you have two massive spotlights in front of your grille, these may affect airflow through the rad.

[MattF]

Cheers Vince. The Jag shroud idea had already gone out of the window
as I'd failed to take the bottom pulley and rad tube/hose into account. It
won't fit. So, gone back to idea one, which is what you suggested above.
Going to mount the fan shroud into the corner of the rad where the top
hose is, which will leave a few inch gap between the end of the shroud
and the other side of the rad, and roughly the same gap at the bottom.
Have also been at the yard again today, , and got a handful of temp
switches off some Toyota Corolla's, (I think), the 16V petrols that only have
an electric fan, to use as the fan switch. Until I get chance to test one, I'm
assuming these switches will kick out at roughly thermostat temp due to
the engines being electric fan cooled. I'll just have to make up an inline
hose adaptor for the top hose to fit it in, seeing as I used the spare 'stat
housing hole for a temp sensor.

Have whipped the viscous and shroud off this evening, so I've no choice
but to knock on with it now. With those spots, BTW, I removed those
yonks since. Couldn't do with the annoying rattle.

[MattF]

Another couple of questions.

1) Does anyone know what a minimum safe clearance would be between
the front of the water pump & studs and the rear of the electric fan, to avoid
any possible problems with engine movement?

2) Does anyone know of any car parts suppliers within South Yorkshire
that sell those alloy hose couplers with a mounting nut in for a thermostat?


The mounting frame for this fan is getting close to fitting tests, so hopefully
I'll know tomorrow if it will actually fit in the engine bay. The measurements
say it should, but my luck never tends to run smoothly.

On another tangent, , did you get in touch with Kenlowe over that fan, John?
If so, did you have any joy with them? I hope things are still running smoothly
on the temperature front.

[BUSHWHACKER]

[QUOTE=MattF] Does anyone know of any car parts suppliers within South Yorkshire that sell those alloy hose couplers with a mounting nut in for a thermostat? QUOTE]


D'you mean like these?

http://www.mgf.ultimatemg.com/group2...ifications.htm

[MattF]

D'you mean like these?

http://www.mgf.ultimatemg.com/group2...ifications.htm

Pretty much. It wouldn't need to have the remote part though, just a straight
hose coupler that you can mount the thermostat into would be fine. How you
manage to find some of this stuff amazes me, Vince. Must admit, the one
on the link above does look blo*dy sexy.

Edit: I'll rephrase. Got all googly eyed at the sight of purple alloy. Just looked
again at that page. By thermostat, I meant fan temp switch, not the actual
thermostat, which I think the one above is for?