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  #341  
Old 12-17-2020, 02:56 AM
Fargoman Fargoman is offline
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I've had situations where it's dozens.

I've fitted 2litre engines in cars that came with 550cc engines and that is a task.

A quart in a pint bottle? No a gallon in a pint bottle.
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  #342  
Old 12-18-2020, 03:56 PM
Sprint Relic Sprint Relic is offline
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Wouldn't it be lovely to make a decision about 1 thing that didn't require 5 level chess thinking ? It's exhausting.
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  #343  
Old 12-21-2020, 12:07 PM
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heinke heinke is offline
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Post Engine/transaxle Fitment to Chassis (cont.)

I started on the most actionable item on the engine fitment plan, which is to make the rear cross member removable. That way, I can make additional trial fitments with the benefit of a straight forward drop-in. I used 1 ¼ by 1 ¼” angle that’s ¼” thick for brackets and lots of 5/16” grade 8 bolts. The most nervous part in this type undertaking is when I break out the saw and cut through a nice, solid welded in chassis member.





The forward most bracket goes frame rail to frame rail for maximum strength. Four angle brackets in total were needed to make the cross member removable. While I was at it, I added some extra bolt-in bracing for the rear bulkhead. This wasn’t needed for making the cross member removable but should add some bonus strength into the chassis.

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  #344  
Old 01-09-2021, 01:29 PM
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heinke heinke is offline
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Quote:
Originally Posted by Superleggera View Post
Definitely share a picture (or a few) of the transaxle bolted to the Coyote engine as a standalone assembly if possible to showcase for visual reference.

This would NOT fit in an actual Miura but your iteration has a much better chance than the original.
Per Mark's request, here's a picture of the transaxle mounted to the Coyote engine. This picture was taken before the final drive component mounting was redone to provide a different angle for final drive case and thus locate the CV joints between the frame rails. In other words, this picture serves as a "before" picture and I will post "after" pictures in a separate posting.

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  #345  
Old 01-09-2021, 03:23 PM
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heinke heinke is offline
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Post Engine/transaxle Fitment to Chassis (cont.)

It’s been a busy week on the Miura project and as a result there was a lot accomplished. I made a trip to San Diego, Ca (a 7+ hour drive from where I live) to visit Pete Aardema and Kevin Braun with the objective to make the changes necessary so the Coyote and transaxle combination will fit properly in the Miura chassis. The two outstanding fitment issues were the damper pulley hitting the frame rail and CV/axles hitting the frame rail.

The Coyote damper pulley is made to run a two serpentine belt system. My approach to making it fit was to convert it to a single belt by parting off the outer half of the damper. Pete chucked it up in a lathe and quickly made the alteration.



With the narrowed damper pulley, there is now about ½” clearance between it and the frame rail.



The water pump used the outer belt so that needs to be addressed. As you can see in the picture above, there is also a lack of clearance between the thermostat housing and the roll bar upright. The thermostat housing is mounted directly to the water pump. My intention is to replace the belt driven water pump with an electric water pump. This should eliminate need for a water pump drive belt and with an electronic controller the need for a thermostat. I think I’ve found a good product to do this but am still trying to verify that it will work in this application given the 8 plus feet of tubing between the radiator and engine.

Now onto the much more complicated transaxle modification to rotate the final drive case. Here’s a before picture showing the main clearance issue when final drive is rotated to the desired position. Notice the ear sticking out from middle case that hits differential housing and mounting bolts.



Unfortunately I was so busy doing other things that I forgot to take progress pictures of Kevin Braun doing the machining operations. It included CNC machining away metal on the transmission middle case to provide clearance for the newly angled final drive case, counter sinking some fasteners, drilling holes for new alignment dowels between the cases, and drilling/tapping new holes for mounting bolts. The prior holes that protruded into the middle case were filled to prevent oil leakage. Because of Kevin’s expertise and deep precision machining talents, he was able to get it done in about a day.

To prove to ourselves that the CV would have the needed clearance, the engine and transaxle was test fit into the chassis.







In addition to the above, we were also able to make a clutch shaft pilot bushing, dial-in the bell housing, positively located the clutch shaft to prevent rubbing on the transfer case, add dowel pins for positive pressure plate alignment and adapt a starter for mounting on the opposite side of the engine.



On the Coyote engine, Ford locates the starter on the passenger side of the engine. We were able to move it to drivers side of the engine block by enlarging an existing hole in the block to accept a Hitachi gear reduction starter. This starter is commonly used as an aftermarket replacement on many different engines by utilizing different adapter plates. We machined up a special adapter plate that uses 2 bell housing mount bolts extended though the threaded block holes and a third bolt tapped directly into engine block to mount the starter. We hooked it up to a battery and the starter engaged the ring gear fine and easily spun the engine over.

Well it was very much worth the 2 days of driving and 2 days of work to get all this done. My special thanks and acknowledgement goes out to Pete Aardema and Kevin Braun for helping me with this project and contributing stuff that goes way beyond my abilities.
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  #346  
Old 01-09-2021, 04:10 PM
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123pugsy 123pugsy is offline
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Very cool.


How about changing spark plugs? A challenge?
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my project:
http://www.allmetalshaping.com/showthread.php?t=154
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  #347  
Old 01-09-2021, 05:03 PM
Chris_Hamilton Chris_Hamilton is online now
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Amazing stuff! You are a very smart guy. This is all very high level engineering. Wow!
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  #348  
Old 01-10-2021, 04:33 AM
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Gojeep Gojeep is offline
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So great to see it all getting resolved.
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  #349  
Old 01-13-2021, 12:17 PM
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heinke heinke is offline
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Quote:
Originally Posted by 123pugsy View Post
Very cool.


How about changing spark plugs? A challenge?
Changing spark plugs will be easy. Might be one of the only things that will be easy given all the tight clearances in this engine bay. Given the Coyote 4 valve per cylinder heads, the spark plugs are located in the middle top like a hemi head. In other words, they are located in the middle of the valve covers which have wide open clearance.
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  #350  
Old 01-13-2021, 12:19 PM
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heinke heinke is offline
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Quote:
Originally Posted by Chris_Hamilton View Post
Amazing stuff! You are a very smart guy. This is all very high level engineering. Wow!
Quote:
Originally Posted by Gojeep View Post
So great to see it all getting resolved.
Thanks Chris and Marcus.
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