TR4/4A The Yellow Fan on a TR4

[KVH]

Does the yellow plastic 8 blade fan make tuning and working on the engine more difficult--like in turning the engine over?

Is the benefit to the cooling material enough to bother with?

 

[TR4nut]

I don't think it makes it any more difficult to work on the engine - but if you are used to putting a socket on the dog bolt to turn the engine then yes that is more difficult, if not impossible with the yellow fan.

For me, I have absolutely no regrets to switching to the yellow fan. My metal fan was out of balance, wobbled, and was noisy at idle. I also saw improvement in engine temp after switching the fan out which was a big help in the Texas summers.

 

[tdskip]

Timely exchange guys (for me anyway) since I was about to do the same thing with the newly rebuild TR4A engine. Thanks for info!

 

[MDCanaday]

Get the yellow tr7 fan with 13 blades, fits better and pulls more air,and you dont have to reverse it to put it on.
MC(mad dog)

 

[Geo Hahn]

I always push on the top of a front wheel (gearbox in 4th) to move the engine on the TR4 -- grabbing the fan can be tough on the knuckles.

Local owner Craig S (red TR4) has the yellow fan and is usually at our Tuesday coffee session (arrives about 9:00 - Grant & Swan) if you get a chance to catch him for an opinion on it's effectiveness. I would say that the mere fact that he has one is a pretty good recommendation.