Got my engine all back together and it looks great.
I want to put the fan shrouds on for better air flow.
But, they are really "ugly" with the crinkle coating.
Probably there for absorbing sound.
What should I do?
Clean off the coating and paint them gloss black?
What has everyone else done?
I also want to remove the sheet metal plate on the back of the fan housing that blocks half of the opening, so I have better air flow.
I won't have a heater so I dont see what this plate is for?
Thanks
Lyle
Fan Shrouds
-
woodwizard
- Posts: 0
- Joined: Sat Aug 21, 2010 7:08 am
Re: Fan Shrouds
I cleaned mine up, only removing the loose "ugly"..... painted the inside flat black and sprayed the outside with cold galvinizing. IMHO, looks good with a clean aluminum block.
As for the plate on the back of the fan housing, the Japs put it there for a reason....
with the early model being about 2/3 the size of the one on a '72.
It may be there to help direct the air more for cold climate driving - but I left it on.
Dan
As for the plate on the back of the fan housing, the Japs put it there for a reason....
with the early model being about 2/3 the size of the one on a '72.
It may be there to help direct the air more for cold climate driving - but I left it on.
Dan
--- On
Thu, 9/2/10, lyletrudell
wrote:
> From: lyletrudell
> Subject: [anzhonda600owners] Fan Shrouds
> To: anzhonda600owners@yahoogroups.com
> Date: Thursday, September 2, 2010, 7:37 PM
> Got my engine all back together and it looks great.
> I want to put the fan shrouds on for better air flow.
> But, they are really "ugly" with the crinkle coating.
> Probably there for absorbing sound.
> What should I do?
> Clean off the coating and paint them gloss black?
> What has everyone else done?
> I also want to remove the sheet metal plate on the back of the fan housing that blocks half of the opening, so I have better air flow.
> I won't have a heater so I dont see what this plate is for?
> Thanks
> Lyle
-
lyletrudell
- Posts: 56
- Joined: Wed Apr 14, 2010 12:54 pm
Re: Fan Shrouds
Hi Dan, I will remove the ugly stuff like you did, the aluminum fins look so good I hate to cover them, but I know the shrouds are really important for cooling.
I think silver or black would look good against the aluminum fins.
I will remove the plate that blocks the fan exit, I see no reason to restrict air flow except for controlling heat.
I don't need heat so off it comes!
Thanks for the reply.
Lyle
I think silver or black would look good against the aluminum fins.
I will remove the plate that blocks the fan exit, I see no reason to restrict air flow except for controlling heat.
I don't need heat so off it comes!
Thanks for the reply.
Lyle
--- In
anzhonda600owners@yahoogroups.com
, WoodWizard 33 wrote:
> I cleaned mine up, only removing the loose "ugly"..... painted the inside flat black and sprayed the outside with cold galvinizing. IMHO, looks good with a clean aluminum block.
> As for the plate on the back of the fan housing, the Japs put it there for a reason....
> with the early model being about 2/3 the size of the one on a '72.
> It may be there to help direct the air more for cold climate driving - but I left it on.
> Dan
> --- On Thu, 9/2/10, lyletrudell wrote:
> From: lyletrudell
> Subject: [anzhonda600owners] Fan Shrouds
> To:
anzhonda600owners@yahoogroups.com
> Date: Thursday, September 2, 2010, 7:37 PM
> Got my engine all back together and it looks great.
> I want to put the fan shrouds on for better air flow.
> But, they are really "ugly" with the crinkle coating.
> Probably there for absorbing sound.
> What should I do?
> Clean off the coating and paint them gloss black?
> What has everyone else done?
> I also want to remove the sheet metal plate on the back of the fan housing that blocks half of the opening, so I have better air flow.
> I won't have a heater so I dont see what this plate is for?
> Thanks
> Lyle
Re: Fan Shrouds
�
Hi Dan;
The shrouds are there to assist in cooling, a smooth surface does not cool as well as a rough one. All are needed. The rubber on the cylinder and head fins keeps the noise from fin vibration down. The plate on the back of the fan housing deflects engine heat away from the master cylinder and into the heat riser attached to the air box horn, and the larger deflector on the April 1971 and on deflects a greater amount.
You can purchase 1/4 inch neoprene to cut for the fins and larger thicknesses for the wedge type dampers. It really does help.
And to get the roughness painted back on the shrouds, use truck bet liner, goes on with a roller.
Bill
Hi Dan;
The shrouds are there to assist in cooling, a smooth surface does not cool as well as a rough one. All are needed. The rubber on the cylinder and head fins keeps the noise from fin vibration down. The plate on the back of the fan housing deflects engine heat away from the master cylinder and into the heat riser attached to the air box horn, and the larger deflector on the April 1971 and on deflects a greater amount.
You can purchase 1/4 inch neoprene to cut for the fins and larger thicknesses for the wedge type dampers. It really does help.
And to get the roughness painted back on the shrouds, use truck bet liner, goes on with a roller.
Bill
Re: Fan Shrouds
Hey Bill, you make it sound like the engineers who designed the cars,actually knew what they were doing!
-
lyletrudell
- Posts: 56
- Joined: Wed Apr 14, 2010 12:54 pm
Re: Fan Shrouds
Yes, for a 40+ year old design it was ahead of it's time.
But, The Honda engineers have come along way since then and materials have improved. Fire wall insulation and high temp coatings are much better now, under hood temps are really high today.
Honda was trying to get the car to be pretty good in all climates.
I just want to make it a better "hot weather only" car.
In racing HP loss from under hood heat is a big problem in the south!
Need to get the heat out of the engine compartment.
Good air flow past the fins, and the shrouds dissipating heat quickly. Shrouds made of aluminum or steel with a ceramic coating would be best.
The header pipes with a ceramic coating also.
Nothing holding heat and nothing blocking air flow.
The rear of the hood being vented would be great but I don't want to chop it up.
A cold air intake setup is also a big improvement over the Honda air cleaner. Pulling cooler air from the front grille is better for power when it's hot.
I want to keep my coupe mostly stock, because they are so rare, but I want to enjoy driving it in the Florida heat.
I want to keep it cheap also.
Thoughts?
Lyle
But, The Honda engineers have come along way since then and materials have improved. Fire wall insulation and high temp coatings are much better now, under hood temps are really high today.
Honda was trying to get the car to be pretty good in all climates.
I just want to make it a better "hot weather only" car.
In racing HP loss from under hood heat is a big problem in the south!
Need to get the heat out of the engine compartment.
Good air flow past the fins, and the shrouds dissipating heat quickly. Shrouds made of aluminum or steel with a ceramic coating would be best.
The header pipes with a ceramic coating also.
Nothing holding heat and nothing blocking air flow.
The rear of the hood being vented would be great but I don't want to chop it up.
A cold air intake setup is also a big improvement over the Honda air cleaner. Pulling cooler air from the front grille is better for power when it's hot.
I want to keep my coupe mostly stock, because they are so rare, but I want to enjoy driving it in the Florida heat.
I want to keep it cheap also.
Thoughts?
Lyle
--- In
anzhonda600owners@yahoogroups.com
, brad fenn wrote:
> Hey Bill, you make it sound like the engineers who designed the cars,actually
> knew what they were doing!
> From: "billmyong@..."
> To:
anzhonda600owners@yahoogroups.com
> Sent: Fri, September 3, 2010 2:28:24 AM
> Subject: RE: [anzhonda600owners] Fan Shrouds
>
> Hi Dan;
> The shrouds are there to assist in cooling, a smooth surface does not cool
> as well as a rough one. All are needed. The rubber on the cylinder and head
> fins keeps the noise from fin vibration down. The plate on the back of the fan
> housing deflects engine heat away from the master cylinder and into the heat
> riser attached to the air box horn, and the larger deflector on the April 1971
> and on deflects a greater amount.
> You can purchase 1/4 inch neoprene to cut for the fins and larger
> thicknesses for the wedge type dampers. It really does help.
> And to get the roughness painted back on the shrouds, use truck bet liner,
> goes on with a roller.
> Bill
> -----Original Message-----
> From:
anzhonda600owners@yahoogroups.com
> [mailto:
anzhonda600owners@yahoogroups.com
]On Behalf Of WoodWizard 33
> Sent: Thursday, September 02, 2010 5:02 PM
> To:
anzhonda600owners@yahoogroups.com
> Subject: Re: [anzhonda600owners] Fan Shrouds
> >I cleaned mine up, only removing the loose "ugly"..... painted the
> >inside flat black and sprayed the outside with cold galvinizing. IMHO,
> >looks good with a clean aluminum block.
> >As for the plate on the back of the fan housing, the Japs put it there
> >for a reason....
> >with the early model being about 2/3 the size of the one on a '72.
> >It may be there to help direct the air more for cold climate driving -
> >but I left it on.
> >Dan
> >--- On Thu, 9/2/10, lyletrudell wrote:
> >>From: lyletrudell
> >>Subject: [anzhonda600owners] Fan Shrouds
> >>To:
anzhonda600owners@yahoogroups.com
> >>Date: Thursday, September 2, 2010, 7:37 PM
> >>Got my engine all back together and it looks great.
> >>I want to put the fan shrouds on for better air flow.
> >>But, they are really "ugly" with the crinkle coating.
> >>Probably there for absorbing sound.
> >>What should I do?
> >>Clean off the coating and paint them gloss black?
> >>What has everyone else done?
> >>I also want to remove the sheet metal plate on the back of the fan
> >>housing that blocks half of the opening, so I have better air flow.
> >>I won't have a heater so I dont see what this plate is
> >>for?
> >>Thanks
> >>Lyle