Is there a flywheel cover that is to be installed on my 1989 XJS convertible 5.3l automatic transmission to cover the top and down the right and left side of the cast housing around the flywheel? I had the transmission rebuilt and when I received the car back and drove the car it makes a terrible banging noise that gets louder as the RPMs increase. The banging noise sounds like it is coming from under the passenger's right-hand side of the car. I am basically rebuilding the entire car. I am reinstalling the rebuilt differential, driveline and covers. When installing the two lower plates that cover the bottom of the flywheel. Looking at the flywheel towards the back of the car down the driveline tunnel, there are approximately 3 bolts at the edge of the flywheel casting that look like it had a cover plate to protect the teeth and center hole to the flywheel from dirt, gravel and water. There is no cover on the right-hand side of the flywheel casting behind the oil filter (see attached pictures). The left side of the flywheel has the starter bolted into two boltholes at the edge of the flywheel housing. I can’t see the top of the flywheel casting, but I think it is missing a cover on the top of the flywheel also. Attached is a cut-sheet of a ˝ round cover plate for a flywheel, part number C41664*. I think I am missing a cover plate that would cover the right, left sides and top of the flywheel.



Missing flywheel cover behind oil filter.


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The banging, if it seems to be onto the body, rather than the exhaust banging, is almost certainly because the gearbox mountings have not been installed properly, and as a consequence the propshaft is hitting the gearbox mounting. Most likely the rearmost one that has two bolts up in the tunnel.
See post 13 in this thread.
https://www.jaguarforums.com/forum/x...-refit-291205/
The cover fits as in this photo:

 

I agree with Greg.

See the attachment. it explains that mount clearly.

Also, your V12 must be "special", as all the ones I have dealt with have the oil filter on the LH side of the engine.
Car "speak" is ALWAYS sitting IN the car facing the Front. That's why Drivers/Passengers side also means squat, coz that depends which side the steering wheel is placed. NOT being too picky, but the wrong info can/will lead to the wrong answers, then people get upset.
Yep, I am OLD, some people call me the Fossil, life is GOOD.

 

My Jaguar is very "Special". My car may be the only one with the oil filter on the right-hand side, just kidding, I thought I may confuse some readers. I had said that, looking towards the back of the car from underneath, down the driveline tunnel. But you guys are always correct, the right-hand side and the left-hand side are still the same if you are under the car or sitting in the car. I took some good pictures, but I don't know how to add too may pictures due to the size. The transmission company project manager (PM) drove the car to price the work and there was no noise or issue. The company was to rebuild the transmission, remove the drive shaft replace universal joints, balance the drive shaft and replace all transmission mounts. When I received the car back, The company PM said that they balanced the drive shaft they said the universal joints were fine, and just greased them. The PM said that the IRS is falling out. I drove off with the car banning and rattling. I took the car back to the PM and asked if the mechanic drove the car to test their work. The PM said no, that the car is unsafe. They obviously drove the car to the front of the shop. I asked if it was safe to drive the car home, and he said yes?? I did find that the right-hand IRS supports were broken. The driveline had two new groves at the end where it bolts onto the differential. Would this installation cause the out of balance banging, and should the entire support system be replaced?

 

I don't see any problem with grooves other than unsightly marks, a lick of paint will fix that. The large hole behind oil filter should be fitted with the appropriate plug and the "unused" bolt holes appear to be bell housing bolt holes viewed from backside.
First check l would be making in search for knock would be on the over axle pipes, particularly as you stated the IRS is not secure, look for witness marks on the half-shaft uni shields.

 

Thank you for your information. The entire rear IRS and differential have been rebuilt all new bearing, seals, shocks, brakes, springs UJ, etc. powder coated paint, new IRS supports, main drive shaft has new Spicer universal joints, painted and balanced. I did not notice any scraping or rubbing on the exhaust shields. My main question now is should the transmission support be replaced. The transmission shop was to replace the support. Typically, how do the transmissions get removed and re-installed? It looks like the transmission support with the spring was cut out and welded back together. The pictures on my previous reply are after the transmission was rebuilt, and the car was bagging like hell under the RH passenger's seat. Everything has or will be rebuilt or replaced on the car. I don't want to have the car completed, go down the road the transmission or something is banging under the car.

 

Snaps wont open, life goes on,

My love/hate with that mount arrangement over too many years and cars that have had numerous Wimbats working onthem is:

The spacers between the mount arms and the body are 1) missing.
The spacers are in the wrong pace, so the angle of the dangle is NOT as Jaguar designed.
The Cotton Reel is NOT there. Too many of them in my time.
The "special" washer is NOT there.
The one and only spacer, below the special washer, fell out, and went wlak about, and is not there.
The rubber spring seat is missing.

If, and I mean IF, the car still has the stupid collision bracket fitted, it is assembled wrong, or partially assembled. I remove them, always, and move on. NO ill affects for too many years, me or the car.

Rear cradle to body mounts, are COMPRESSION mounts ONLY. SO a stupid shop raises the car and the cradle is "held" is place by these 4 mounts entering EXTENSION mode, NOT GOOD. The car sits like this until the trans goes back in, and back on the wheels. A week, maybe more. I had one, a S2 Daimler, that when I raised the car, slowly, to check these mounts, the car went UP, the wheels stayed ON the ground, Bugga. 4 new mounts, 4 hours later, good as new.

Exhaust clobbering things, YES, as common a Cold beer in any Pub. Lots of time needed to get that sucker right, lots of strange words also.

Sadly shops have NO idea, and rarely listen to anyone. No One touches my cars, "if I cannot fix it, it aint broken", and NO I am NOT special, just fussy, and been that way since the Mid 60's.

 

Grant,
I will see if I can get some assistance from the forum leaders as to how to make my attachments open. Thank you for pointing out the missing parts. I had told the shop that I wanted new a transmission mount parts. It looks like they did not install any new parts. By the pictures, the old mount was welded back together and missing a few parts, probably cut out the mount to remove the transmission. You are exactly correct, the shops think they everything about a jaguar XJS, how to perform their work and do not want any information. I gave the shop several documents on the transmission. The guy just looked at me like we know what we are doing, and he is putting his best and most experienced mechanic that has worked on XJS before on my car. The shop said they were backlogged. They had my car for 6 weeks, I don't know how long the car was on the lift, that could have torn apart the rear IRS mounts. When I look at the transmission, It looks like it is angled several degrees up? I also think the shop installed the drive shaft backwards. If I remember correctly, the gator and spline section was up towards the front of the car. I will double-check my pictures and the location of the two grooves worn into the drive line. According to the service training course No. 450 the XJS drive shaft are to be installed with the splines and rubber gator at the rear of the car. I will order all new parts for the mount and collision bracket.