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so with the REW engines on perpetual backorder, if I were to place an order and process it with a CC, that then updates for payment authorization every 18 days or so thereafter. The rep was telling me they’ve had a large number of instances where if the reauthorization doesn’t go through, the order is cancelled. and then you have to place the order again and as a result are at the back of the waiting list line again.
because there are several threads on here of people having issues with having placed a new engine order and are then waiting a year or more. With said shops also exhibiting certain behavior that would suggest they may be having financial issues. So if they order the engine and their payment authorization fails die to bad or exceeded credit then back to the end of the line they go. Yet in the case of some of these shops, they have a notice on the front page that once a payment is made there’s no refund available i.e. you can’t cancel the order and get your money back.
So it’s not just engines that are on backorder, but major engine parts as well. I had placed an order with Motorsports for front & center REW iron side plates and then called to see if there was an ETA because they’re both on backorder. The rep told me they have orders waiting for 70 center plates and 23 front plates. Wow …
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so with the REW engines on perpetual backorder, if I were to place an order and process it with a CC, that then updates for payment authorization every 18 days or so thereafter. The rep was telling me they’ve had a large number of instances where if the reauthorization doesn’t go through, the order is cancelled. and then you have to place the order again and as a result are at the back of the waiting list line again.
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you're running into a Mazda Motorsports issue. Perpetual backorder means that Mazda USA do not have any in stock. a few years ago Mazda USA did order them for stock, but they stopped (probably because people want to buy them).
at the dealership level you order the thing, since they don't have any, it goes on back order, you get a sales order and an ETA, and you wait. When it shows up, it just gets shipped to the dealership.
dealership doesn't need to do the CC reauthorization thing, they just get billed when its on the way.
So it’s not just engines that are on backorder, but major engine parts as well. I had placed an order with Motorsports for front & center REW iron side plates and then called to see if there was an ETA because they’re both on backorder. The rep told me they have orders waiting for 70 center plates and 23 front plates. Wow …
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Sounds like I should crack my 60,000mile original engine to sell the side plates if they arent too worn.
new are out there for sale by various sources, but it’s $300+ more for the pair than the Motorsports price and my need isn’t immediate.
I’m reluctant to trust Amayama, RHD only just listed that price after I submitted it the other day; you can buy them online now less than that per the first sentence of my post above.
I understand that about the dealership invoicing as well. I specifically was referencing rotary etc. mechanical shops. Without getting into vendor names already published elsewhere, some people have been waiting longer for an engine than they should be. One of which supposedly filed for bankruptcy recently. If that shop is charging to a CC it could be part of the problem.
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I should get into Mazda greymarket importing since the company to dealer relationship is so bad.
its been done before. we used to buy gray market (or is it grey?) stuff at the dealership basically your market is:
1) you pay less in customs/fees etc and can beat Mazda USA's price.
2) you're buying the genuine part. sometimes Mazda USA buys a non genuine part and re-boxes it, anything with a 9u or 9a part number. it was this weird situation where if you wanted the genuine part you couldn't get it from Mazda
if you remember how big of a deal the Japanese oil filters were, that was the tip of the iceberg.
we did, of course investigate engine parts, but the guy needed a business case to bring them in. (its potential sales AND the difference in price between USA and wherever they are buying stuff, if they can't do it cheaper there is very little point), we did end up with something, i think rotor oil seals, but i could be wrong
both are on the PDC shelf, but I don’t believe that Mazda plays it that way. They cost $xxx to make and then they set a profit percentage above that. Hence my question.
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for s6 they got tricky and marked each housing with a colour dot near the spark plugs to be seen externally during statuary emissions testings [ without removing the inlet manifolds to see the F & R for front and rear ] they also very slightly moved one of the exhaust studs in one of those housings ( intended to stop you using two front or two rear housings together in a rebuild ) -- though i bet few people realise this one and just file out the differences
I had never noticed the exhaust stud difference, but I never put stock FD exhaust manifold on a non stock engine either.
The source "bumpstart" seems to have technical knowledge as witnessed below-
and another footnote,, another issue that few take note of is that mazda revised the inner trochoid dimensions every time they revised the apex seal dimensions from 6 mm to 3mm ,, from 3 mm to 2mm,, from 2mm FD to renesis 2 mm the housing inner trochoid dimensions shrank ( ie the inner of the housing got tighter ) -- this is to offset the differences in clearances that the different seals make to the housing edge when laying down at the maximum 26 degree inclination angle ie,, a 6mm seal motor will have a wider inner trochoid in its housing to account for the 3mm that is outside of the seal center line
naturally,, a 3mm seal has only 1.5mm outside its centre line,, and must have a "tighter" inner trochoid dimension to be applying the same sealing force when at 26 degrees --and the same again come the 2mm seals -- and in accordance in trying to still obtain the necessary minimum .015" clearance to the housing the rotor flanks are similarly better toleranced ( thinner ) as the years progress
simply,, at higher rpms and boosts ( heat loads ) older rotors can and do clash with the later housings unless clearanced and in vichy versy,, later rotors installed in earlier housings will have lesser sealing pressure when the rotor seal is in its inclined maximum 26 degree angle
so would it be incorrect to use two of the lower cost front housings? It seem not other than having to possibly to grind a few spots for fitment purposes based on those links?
Two front 13B-REW rotor housings will work the same for you.
Someone needing stock FD emissions system to work as intended by Mazda would have to use a hand drill and drill a hole in one of two places.
Either From the acv cavity diagonally into the exhaust sleeve area (stock arrangement) OR less scary straight through the acv cavity webbing so the existing acv cavity to exhaust sleeve area passage is used.
This is because the acv cavities in the rotor housing are fed by the center side housing (iron), so the system has lateral symetry (mirror image).
another weird thing; the newest MT rear iron plate part no. N3G1-10-C50 also isn’t coming up on the US parts, but the old part no. N3YC-10-C50 is shown in stock at the IC PDC
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01-27-23, 11:03 AM
