cooling tins

[mikey52]

what holds the cooling tins that mount under cylinder heads secure? I am using the larger Type 3 tins....do they just snap in and stay put?

[[email protected]]

yes.

[FASTERFRED]

MIKEY...I have always had problems getting them to fit with what we might call securely....Atleast there was always a question whether or not they would come loose and start working on the push rod tubes...The after market stuff seems to be way off....Now, I always wire them in place for the extra security and tighter fit.... ....I put some small holes in the tin in four places and wire accross/around the cylinders between each two of the holes....I do the wiring part AFTER the heads are on and torqued so you don't pull them out of line when tightening the wiring...Just get it snug, not like your working rebar... ...Also helps if you grind out the holes/grooves that fit around the cylinder studs to get a better "hooking action."....I am sure some may have a problem with this setup, but it works for me... ...The Lizard...

[mikey52]

Thanks, my uncle was telling me he wired em in too....but I wasnt sure abt it. Sounds like a good idea...so you drill the lower tin and stretch wire under/across?
Mike

[myolbug]

just use the stock tins. The type three, if I recall correctly, so called super cool tins, will cause you engine to run hotter. Are you running a type three? If not, then just use the regular ones. They fit right because they are for your engine. And, they do work better.
_________________
"To my mind it is wholly irresponsible to go into the world incapable of preventing violence, injury, crime, and death. How feeble is the mindset to accept defenselessness. How unnatural. How cheap. How cowardly. How pathetic." Ted Nugent

[FASTERFRED]

Mikey...MYOLBUG has a good point...There has always been controversey as to the use of the Type 3 tin (super cool tin) on the Type 1 engine...If you look under the type 1 with all the orginal tin in place, then invision the type 3 in there too (less the square piece the super tin replaces), it looks like the 3 tin duplicates a lot of the type 1 tin....Run hotter or cooler, I don't know for sure, but I am sure someone has done something on it... ...Maybe the Type 3 cooling system/fan puts out more CFM and therefore can overcome what looks like the increased restriction the cool tin may cause?...It is a little surprising that the tin doesn't fit a Type 1, yet fits a type 3, as I always thought the cylinder/case/head set up was the same on both engines, so why shouldn't it fit?....Maybe there is something going on there I don't see....As far as the wiring them in place, I go over the top of the cylinders and between a set of fins in two places accross from the outer notches that are suppose to hold them to the studs.... ...The Lizard...

[mikey52]

Guys, this is all good advice....I wish I had not used the type 3 tinns ...but too late..they are in ....motor is installed, should i remove them ? ...if wiring them is possible after motor instal I guess I should do this??? thanks for the experience....what should I do at this point?

Mikey

[vdubyah73]

From what i understand type 3 tins are used to deflect air from the crank mounted fan, type 1 tins are used to deflect air from an alt. or gen. mounted fan. Jake Raby has done research on this maybe he'll pop in and share his findings. I've also seen a post somwhere a while back that someone posted what looked like a VWoA service bulletin saying not to do it. Wish I could find it again, I search for it every time this topic comes up but no luck.
Bill

[FASTERFRED]

Mike....I believe there are quite a lot of VW's running out there with the Type 3 cylinder tin that are not having a cooling problem, so I wouldn't make it a problem before it is one....If you have them in there now, run it thru break in and awhile after keeping an eye on the temp with say a Berg oil dip stick sensor....If the temps start running too high for you, first check everything else that may be causing the overheat/high heat (timing, carburation, gaskets, valve lash and all that other stuff) before taking the engine out and replacing the tin.....Suppose you could get the old tin out of there by using the after market collapsible push rod tubes, but the drivers side lowest tin would be difficult to get it's front mounting screws out...Don't believe you could wire the tin in place now, but you might find a way....Again, just keep an eye on it to see if it has shifted down on the push rod tubes...Don't let it drive you nuts....Have fun with it, that's what you built it for.... ...The Lizard...