What to do with my engine....

[TobyB]

Quote

 retorqued cylinder head (all over, some too tight and too loose)

Prepare yourself for the possibility of it needing a new gasket.  Every time I've disturbed a 

10+year old head gasket, it's eventually given up the ghost.  Not in an evil way- usually, just

a small external coolant leak.  Sometimes internal.  The coolant passage sealant fails.

 

As to your remaining vibration, your description sounds a lot like what happens when the straps

holding the friction surface to the bell of the pressure plate fracture.  They allow the friction

plate to off- center itself, and 3500 seems to be a resonant.

There are 2 types- axial and radial- and the axial straps, which are more common on the 215,

just don't like being double- clutched.  Or getting old.

 

Me, I KNOW I'd learn the ins and outs of the EFI, and then stick a turbo on it.

But I admit that I have... issues...

 

fwiw,

t

 

Edited December 22, 2023 by TobyB

[d.hitchcock]

"I even see a hose coming off the end of the fuel rail going.... nowhere (probably a pressure vent) and it's really impossible for me to know what's what and how to diagnose this is it's fuel... "

There shouldn't be a hose just hanging off the fuel rail. If it's not spraying fuel around, then I'm guessing that is the vacuum feed for the fuel pressure regulator (assuming there is an FPR on the rail).

EFI isn't as daunting as it seems at first, but I feel your pain for having to sort out issues with a one-off nonstock set up.

[jimk]

3 hours ago, d.hitchcock said:

"I even see a hose coming off the end of the fuel rail going.... nowhere (probably a pressure vent) and it's really impossible for me to know what's what and how to diagnose this is it's fuel... "

There shouldn't be a hose just hanging off the fuel rail. If it's not spraying fuel around, then I'm guessing that is the vacuum feed for the fuel pressure regulator (assuming there is an FPR on the rail).

EFI isn't as daunting as it seems at first, but I feel your pain for having to sort out issues with a one-off nonstock set up.

It can be from the pressure regulator for manifold pressure compensation.  If so, it would normally connected to a nipple on the manifold.