The Mazda R series diesel engine information thread - Page 3 - Mazda MX-6 Forum
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post #31 of 70 (permalink) Old 11-30-13, 16:59 Thread Starter

 
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You would need to convert it back to how it was when the R2 was in there.

I am not sure what the fuel economy of the R2 is like having never had a vehicle with one installed. I would expect similar to the RF.
The RF turbo seems to have better fuel economy than either and some more power so would be a better choice if you are going to the effort of the engine swap.

84 626 sedan FE SOHC turbo - Sold, no time to finish
84 626 sedan RF diesel - Sold, no time to work on it.
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post #32 of 70 (permalink) Old 12-1-13, 12:46
 
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I also wanna buy RF T but I'm little afraid about turbo internal condition . I mean its on luck I could get a better condition turbo or worn.
R2 . RF and RFT all engine prices are same even their condition looks good but who knows what's inside.

All engines are black top but is it possible to know that are they early ones or late models
One more question does R2 and RF share same connecting rods and crank

Also elaborate thermostat valve position I can't recognise in your previous posts on 1 page please mark with red circle
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post #33 of 70 (permalink) Old 12-1-13, 15:58 Thread Starter

 
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Yes, this is always the risk buying used engines.

RF & R2 have a different stroke length so use different rods and crank.

Its hard for me to add that edit now, but the photo showing the R2 from the alternator side, you can see the thermostat housing poking out in front of the timing cover.

Later models it is near #1 injector.

Whether the motor is worn or not will have less to do with its age and more how well it was treated.

You can gauge an idea of how worn a turbo is by lateral shaft play.
I know the HT10-9 works hard on these motors so will wear on high mileage models.
The blades should not touch the housing, also look for traces of oil in the compressor and exhaust housings.

The pics of mine show no oil, but it did have a lot of shaft play - still useable but worn.
You can buy rebuild kits for them, but they can be hard to find.

84 626 sedan FE SOHC turbo - Sold, no time to finish
84 626 sedan RF diesel - Sold, no time to work on it.
06 Mazda 6 MPS (Mazdaspeed) new fun car no mods yet
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post #34 of 70 (permalink) Old 12-4-13, 10:13
 
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Any power difference between early and later R2 engine and do they both have same injectors ?
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post #36 of 70 (permalink) Old 12-4-13, 17:07 Thread Starter

 
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The figures for the Mazda versions are believable and are similar to those I have seen before for the R2.
The Kia versions seem be detuned compared with the Mazda, this might have something to do with the emissions standards of where they were to be sold.

The later R2 engine also had an electronic spill valve in the IP, this might be how Mazda was able to get reasonable power and still meet the emission standard of the day. I don't know whether the Kia version of the motor used an IP with an electronically controlled spill valve or whether it was 100% mechanical.

The injectors in a diesel engine such as this don't have anything to do with how much power is made. Most of the variations will be to do with the injector pump fuel curve & timing and a little bit about the valve timing.

84 626 sedan FE SOHC turbo - Sold, no time to finish
84 626 sedan RF diesel - Sold, no time to work on it.
06 Mazda 6 MPS (Mazdaspeed) new fun car no mods yet
07 Mazda 6 MZR-CD 6sp manual - new DD
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post #37 of 70 (permalink) Old 12-24-13, 15:20
 
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Today I was in market and I bought a Mazda R2 .
RF and RT were available but I decided to buy R2 , there were some silver top too but not in good condition.
It's early model engine and in good condition.
chief please tell me where is engine number on block and R2 is clearly written on front plastic cover
Its midnight here so I can't capture photos I'll post tomorrow
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post #38 of 70 (permalink) Old 12-26-13, 5:03 Thread Starter

 
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should be below #1 injector

84 626 sedan FE SOHC turbo - Sold, no time to finish
84 626 sedan RF diesel - Sold, no time to work on it.
06 Mazda 6 MPS (Mazdaspeed) new fun car no mods yet
07 Mazda 6 MZR-CD 6sp manual - new DD
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post #39 of 70 (permalink) Old 12-26-13, 14:16
 
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Here are the photos
Its dirty but internal condition is superb and compression tested


















Last edited by zaib75; 12-27-13 at 14:34.
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post #40 of 70 (permalink) Old 12-27-13, 8:23
 
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Quote:
Originally Posted by zaib75 View Post
Here are the photos
Its dirty but internal condition is superb and compression tested

That's an interesting intake manifold.

Jeff ~ 1995 PGT ZE-T MSnS-E v3 (317whp @ 8.5psi / 275whp @ 5.5psi)
PARTING A LOT OF 2g and 1g STUFF
FS: Borla for sale.
FS: Clear headlight covers, headlight, fog, tail, gauge cluster
90 PGT MTX with 97k original miles!
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post #41 of 70 (permalink) Old 1-16-14, 5:27
 
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i successfully swapped engine and much satisfied with its performance. the engine condition is superb i have done more than 2k km and it didn't decreased a single drop of engine oil

But still had doubt regarding its power....it 64hp, 71 hp or 78hp and after spending some hours i found R2 max power

its the 1st link showing 79 hp its a bongo van
MAZDA Bongo Van (3 seats) 2.2D (79Hp) technical data. Power. Torque. Fuel tank capacity. Fuel consumption. Load capacity.
japanese manufacturers uses (Pferdestärke PS) metric horsepower which is equal to 735.5 watts after converting into hp its approx 77.85 hp

in this link read 2nd post
Mazda B-Series (B2200/B2500) - Page 183

check this link too
Mazda E2200 2.2 D funicular DA 3 Teupen 26 meters 1999 Other vans/trucks up to 7,5t Photo and Specs


these too
1996 Kia Sportage 2.2 Diesel De Luxe fuel economy review (model for Europe Belgium)

http://www.automobile-catalog.com/ca...esel_2-dr.html

Asia Motors Rocsta 2.2 Diesel Hardtop 1993 - 1999 Car Specs and Technical Auto Data Specifications and Fuel Consumption and MPG

from this page you can get piston size info
Mazda Industrial & Mazda Marine Diesel Engine Parts - Parts Supply Corporation - EngNet

R2 engine bore,stroke ,con,rod, crank and all parts specs
www.engineservices.co.nz/Mazda%2012.pdf

Mazda E2200 service manual
http://eboero.free.fr/lkqsdhqlsk_RT_...blications.pdf

Mazda 626 manuals links
Index of /ftp-uploads/Mazda/626
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post #42 of 70 (permalink) Old 1-16-14, 6:45 Thread Starter

 
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Good work, its always good when a plan comes together.

Whatever you do make sure there are no coolant leaks otherwise air in the cylinder head cooling passages will result in its quick death.

84 626 sedan FE SOHC turbo - Sold, no time to finish
84 626 sedan RF diesel - Sold, no time to work on it.
06 Mazda 6 MPS (Mazdaspeed) new fun car no mods yet
07 Mazda 6 MZR-CD 6sp manual - new DD
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post #43 of 70 (permalink) Old 1-16-14, 14:21
 
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Chief do you have tach in your 626 and if please tell about its connections
I have tach season on pump but its not working with cluster panel
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post #44 of 70 (permalink) Old 1-18-14, 1:13 Thread Starter

 
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The tacho on my 626 connects to the sensor in the injection pump.

There is not much more to it than that.
Maybe your sensor is faulty on the replacement engine.

Alternately did the gauge cluster get modified for the previous engine that was in there ?

84 626 sedan FE SOHC turbo - Sold, no time to finish
84 626 sedan RF diesel - Sold, no time to work on it.
06 Mazda 6 MPS (Mazdaspeed) new fun car no mods yet
07 Mazda 6 MZR-CD 6sp manual - new DD
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post #45 of 70 (permalink) Old 1-18-14, 10:29
 
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I just wanna sure that tachometer directly connects to ip sensor leads
I mean is there any device between them or not.
and my tachometer was working on petrol engine and I'm sure it's modified but now it's headache for me to run on diesel
I have a plan to get tachometer internal circuit board from any other diesel vehicle and the second part is to replace tach sensor if it didn't worked
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