camerondownunder88 Posted February 4, 2011 Report Share Posted February 4, 2011 Hi, Today went to fit a plastic fan to my KE15 (fan from KE20) ANd the blades hit the front pulley on the 5K harmonic ballencer so can't fit on. Can I remove this and fit a stock single row pulley and would it be ok? Just don't want my crank to snap so any one who has done this id love info and how did it go etc? Also anyone out there got pictures of KE1X engine bays of engine fans on them? Cheers Cameron Quote Link to comment Share on other sites More sharing options...
SLO-030 Posted February 4, 2011 Report Share Posted February 4, 2011 How much does it hit by? Quote Link to comment Share on other sites More sharing options...
camerondownunder88 Posted February 4, 2011 Author Report Share Posted February 4, 2011 Hi, Fan over laps bottom pulley by about half width. If you look down blade back of it is in line with deepest part of belt area where it runs. Cameron Quote Link to comment Share on other sites More sharing options...
SLO-030 Posted February 4, 2011 Report Share Posted February 4, 2011 Clearance the fan maybe? The fan pulls air thru so no problems with it trying to move back toward the pulley. Quote Link to comment Share on other sites More sharing options...
Evan G Posted February 4, 2011 Report Share Posted February 4, 2011 stupid question but are you still running the metal spacer between the fan pulley and fan? Quote Link to comment Share on other sites More sharing options...
philbey Posted February 4, 2011 Report Share Posted February 4, 2011 Ke10 pumps run a shorter neck than all other k engines, that's why its hitting. Cam You won't snap a crank, if you had it rebuilt and had it balanced you will be fine. Quote Link to comment Share on other sites More sharing options...
camerondownunder88 Posted February 5, 2011 Author Report Share Posted February 5, 2011 Hi, As Philbey pointed out KE10 a short shaft pump and all the longer shaft pumps will hit the radator so thats the issue. But KE1X with aircon ran a twin row pulley so ill have to look into how that was set up. But I got a KE70 4K item out shed today it is 130mm dia 5K item I use is 140mm dia so should be able to keep current fan belt. Also engine I was told was rebuilt was a home job done poor so yeah not sure on ballance. Biggest worry I now have is as fan is pulling air in to car blades bend fowards so they could hit the radator at high RPM :( So ill have to watch for this. Shall let you all know hos I get along fitting the KE70 4K pulley. Cheers Cameron Quote Link to comment Share on other sites More sharing options...
philbey Posted February 5, 2011 Report Share Posted February 5, 2011 Cam IIRC the actual fan/pump pulley on the KE10 was much smaller diameter than the one on the 5K, my guess is that the original air con KE10s just ran equal diameter pulleys, rather than the 5K with 2 different diameter pulleys. Remember as you get to higher revs, the centrifugal force will counteract the tendency for the blade to pull outward due to air pressure. Quote Link to comment Share on other sites More sharing options...
Bamboo Posted February 5, 2011 Report Share Posted February 5, 2011 (edited) I haven't played with 5ks but 3&4ks don't have a harmonic balancer. They have a crank pulley. I imagine it's the same with a 5k. Difference? A harmonic balancer has a rubber ring between the fan belt ring and the inner circle that bolts to the crank. It's used to absorb some of the harmonics (twist) in the crank, hence the name. Seen mostly in 6 and V8 engines. 4cyls don't usually use 'em, 'cause the crank isn't long enough to warrant it. Yes, there are exceptions. But I believe the small capacity K motors wouldn't require it. So, changing crank pulleys shouldn't be a problem. If you were concerned, get the crank pulley balanced. Boo Edited February 5, 2011 by Bamboo Quote Link to comment Share on other sites More sharing options...
SLO-030 Posted February 5, 2011 Report Share Posted February 5, 2011 5K's Do actually have a harmonic ballancer, inner and outter seperated by about 3-4mm of rubber dampener. Quote Link to comment Share on other sites More sharing options...
Bamboo Posted February 5, 2011 Report Share Posted February 5, 2011 5K's Do actually have a harmonic ballancer, inner and outter seperated by about 3-4mm of rubber dampener. Cool. On that advice, you can't interchange. Boo Quote Link to comment Share on other sites More sharing options...
Rolou Posted February 5, 2011 Report Share Posted February 5, 2011 5K's Do actually have a harmonic ballancer, inner and outter seperated by about 3-4mm of rubber dampener. hi cameron be careful changing balancers as the timing marks are in a different place 4k 5k if using a 5k timing case cheers lou Quote Link to comment Share on other sites More sharing options...
jono1986 Posted February 5, 2011 Report Share Posted February 5, 2011 Is there enough room to run a thermo fan? Quote Link to comment Share on other sites More sharing options...
philbey Posted February 5, 2011 Report Share Posted February 5, 2011 No room for a thermo. And yes, watch out for the different pulley/timing cover combo, you should be able to mark the pulley with a new timing mark though if you don't have a 3k one. Quote Link to comment Share on other sites More sharing options...
camerondownunder88 Posted February 5, 2011 Author Report Share Posted February 5, 2011 Hi, So many replies..lol Yes all 5K have a harmonic ballencer I have seen soem run with out it but not sure if they have lasted. But today I got a 4K-C one Yes I did adjust the timing mark :) Polished it up poped it on went for a spin got engine warm hit 6grand no issues didnt go to 8 not yet ;) So all in all should be good. I do imagine but this Jap 5K was well made unlike many V8 and V6 motors so harmonics should be pretty low. Also thermo no room :( ALso I have a stock KE10 aircon system I want to fit so can't put thermo in front of radator as I need that space so was only suck through an option and I had 42mm from radaitor face to engine so looked in MANY thermo fan books thinnest I saw was 45mm at a cost of $500 US. SO ill keep you posted if my engine explodes but worked and DAM the KE15 stays cool now :) Cheers Cameron Quote Link to comment Share on other sites More sharing options...
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