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Engine Specific Info and Questions => IDI Engine => Topic started by: NintendoKD on May 25, 2010, 10:42:04 pm

Title: noob/stupid question?
Post by: NintendoKD on May 25, 2010, 10:42:04 pm

perhaps this should be in the faq, but I am curious as I am rebuilding my 1.5.  Is is necessary to ream the holes in the head-gasket to the actual size of the ones in the block?  Yeah I know, I should be banned for asking, but I just have to know if this is necessary, I worry about stuff like this.

thanks,

Kevin

Title: Re: noob/stupid question?
Post by: 745 turbogreasel on May 25, 2010, 11:22:33 pm

They are designed like that to control the rate of coolant flow.

Title: Re: noob/stupid question?
Post by: DCC on May 26, 2010, 01:18:57 am

As 745 turbogreasel said, it's to control the coolant flow. There's a flow rate where heat can be transfered efficiently from our (sometimes very) hot cilinders to the coolant. If it flows faster, it may not absorb that much heat.

By the way, there's no thing such as a "stupid question".  ;)

Title: Re: noob/stupid question?
Post by: mstephenson on May 26, 2010, 09:06:37 pm

No such thang as stupid questions.  I didn't know why they were different sizes.  Always good learning here.

Title: Re: noob/stupid question?
Post by: Rabbit79 on May 31, 2010, 09:56:06 am

I remember an instructor in the Navy telling me many years ago that the only stupid question is the one you don't ask, and that has stuck with me for 20 some years.