VWDiesel.net The IDI, TDI, and mTDI source.

Engine Specific Info and Questions => IDI Engine => Topic started by: lews9146 on April 25, 2008, 05:52:58 pm

Title: Any AAZ experts here?
Post by: lews9146 on April 25, 2008, 05:52:58 pm

First let me say hello. My 2nd post but more to floow I'm sure.

I bought a 1.9 AAZ engine for a swap into a Mazda RX7. I must admit I have no experience with VW motors but tons of questions. Is there a place on this site to have the dumb questions answered without doing endless searches?

thanks

lewis

Title: Any AAZ experts here?
Post by: Vincent Waldon on April 25, 2008, 06:15:59 pm

You'll probably find you'll get the best discussions going if you ask specific questions: meaning that you've done a whack of reading first to get up to speed and figure out the general stuff.

I can also recommend that your very first batch of reading be:

(http://i197.photobucket.com/albums/aa85/vwaldon/moses_bentley.jpg)

The Bentley service manual has great pictures and descriptions of just about everything involved in caring for the VW diesel engine.

Title: Any AAZ experts here?
Post by: lews9146 on April 25, 2008, 06:23:00 pm

any idea of where to find this manual?

lewis

Title: Any AAZ experts here?
Post by: Vincent Waldon on April 25, 2008, 06:26:05 pm

Here's one source:

http://www.amazon.com/Volkswagen-Jetta-Golf-GTI-1993-1999/dp/0837603668/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1209173066&sr=8-1


Excellent bathroom reading.  

Opps... did I say that out loud ??!!  :roll:

Title: Any AAZ experts here?
Post by: flapjack on April 25, 2008, 08:13:48 pm

what rx 7 are you putting the diesel into?
post some pics!

Title: Any AAZ experts here?
Post by: subsonic on April 25, 2008, 08:20:26 pm

Just excellent work there Vince.  I must say I am impressed :lol:

Title: Any AAZ experts here?
Post by: Vincent Waldon on April 25, 2008, 08:26:49 pm

Can't take credit... there's an occasional gem over on the Vortex ;-)

Title: Any AAZ experts here?
Post by: lews9146 on April 26, 2008, 03:34:32 am

I'm putting the motor into a 1988 convertible. I use it for commuting but it only gets 19-20 mpg! thats the best even when brand new. How do I post pics on this site? I took a few during the the test fit last Sunday. I'm working with a machinist right now to make the adapter plate for motor/tranny and to machind the Mazda fly wheel to bolt to the VW crank.
I intend to use the Mazda tranny to avoid moving things and fabricating when I could just right a check:)

lewis

Title: Any AAZ experts here?
Post by: RabbitJockey on April 26, 2008, 05:27:27 am

haha thats great i love rx7s, my friend has an 85 i believe thing is fast as hell and its not even a turbo.  he has all kinds of mods on it

Title: Any AAZ experts here?
Post by: lews9146 on April 26, 2008, 08:15:54 am

You can make the N/A cars really fast but mileage will suffer. the rotary motor is 1.3 liters and still only gets 19-20 mpg. If I can get 35-40 and still have 125 hp I'll be happy as ****

lewis


Will this manual tell me if the AAZ motors came without p/s and what to do to put tension on the water pump belt?

is the turbo on the AAZ motor variable or constant pitch?

what about the crank pulley that I hear breaks?

thanks

Title: Any AAZ experts here?
Post by: g-spec on April 26, 2008, 08:40:24 am

I tihnk all AAZ motors came with p/s...but it can easily be removed.
The turbo on the aaz is a fixed pitch turbo but there are ways of adapting a variable turbo onto it!!!!
As for the crank pulley...yes it is the weakest point of the motor but it can be fixed in several ways:
1) take out crank and machine it to accept the TDI style gear
2) install some dowel pins thru the pulley into the crank
3) change the timming belt and use a new pulley and bolt, also inspect the crank for damage.

Title: Any AAZ experts here?
Post by: lews9146 on April 26, 2008, 12:01:07 pm

thanks for the tips on the crank pulley. Now to find the threads for dowel pins and pulley replacement. as for removing the p/s pump, any idea if VW had a high mount tensioner for the water pump belt?

lewis

Title: Any AAZ experts here?
Post by: lews9146 on May 03, 2008, 06:20:51 pm

are these dowel pin holes there or will I need to drill them?

lewis

Title: Any AAZ experts here?
Post by: jimfoo on May 03, 2008, 09:05:04 pm

Nope, have to be drilled.

Title: Any AAZ experts here?
Post by: lews9146 on May 04, 2008, 03:52:29 am

Thanks Jimfoo. Can I drill them without removing the crank? Do you know what exactly happens to the crank pulley? I mean what does it look like when it's going bad? Supposedly the pulley had been replaced by the previous owner. How would I tell?

thanks

lewis

Title: Any AAZ experts here?
Post by: jimfoo on May 04, 2008, 08:46:49 am

This (http://vwdiesel.net/phpBB/viewtopic.php?t=13828) should answer most if not all your questions. When the crank and/or pulley are going bad, you will see where the metal is deforming and should feel quite a bit of slop if you hold the unbolted pulley on the crank.