99 civic si stock alternator to crank belt size?

[spidermancivic]

im trying to put the car back to stock. anyone remember what the stock oem crank to alternator belt size?

also, there is no tensioner on the alternator belt when it is back to stock...............right? just put the alternator on the stock alt bracket and tighten? so what about the upper bracket?

[JRCivic]

The upper bracket is slotted so that you can swing the alternator toward the firewall to tighten the belt.

I believe the OE belt size is 785mm.

[spidermancivic]

hmmmmmmmmmmm,

ok, already picked up the upper and lower alternator brackets from a b18a for $10. guess ill just have to buy the OE pulley for my b16a2 from honda, unless someone can cough one up for me [img]smile.gif[/img]

[spidermancivic]

hey jim,

im getting different results from people about b series alternator pulleys and brackets.

people are saying the USDM and JDM B-series alternator pulleys and top/bottom brackets are not interchangable. Ive searched this board and ive heard the opposite. Is this true?

more specifically, will the jdm b18c, b16a, b18a, or b17a1 pulleys and brackets fit my usdm b16a2?

PS: the top bracket is the slotted bracket that moves the alternator back and forth?

[img]confused.gif[/img]

<font color="#a62a2a" size="1">[ May 09, 2005 12:20 AM: Message edited by: spidermancivic ]</font>

[JRCivic]

Some JDM, Euro, and Australian model alternators have a smaller diameter shaft than the USDM versions... which means you simply have to use the pulley that came with it. OE pulleys may not interchange between alternators. The good news is that ALL "B" series alternators fit ALL "B" series upper and lower bracketry... the only change may be the bolt/fastener type that must be used on the upper bracket. The cast brackets use a 8mm bolt with a "L" shaped tab welded to the manifold side. The stamped steel (gold colored) brackets use a threaded stud with a hex style shank in the middle. Both use a 8mm flange nut on the belt side to tighten things up.