HKSZ Posted May 26, 2012 Share Posted May 26, 2012 I'll back this up with some photos but had a bit of a snafu in the shed tonight making a front sumped L28 to a zed rear sump. Motor is a L28 f54/P90a that came out of a R30 skyline, some signs tell me this motor originally was a ZX motor ie the rear dipstick stem is still on the block, just folded over to close off and the current sump has a dipstick welded to the front bowl. I took the fr sump off and found a fr pickup at the front of the block and a second block off plate at the half point of the block. Easy I thought, use the block off plate on the front pickup point and fit a Zed pickup mid point with Zed sump pan. Problem is that front block off plate and its two bolts now foul the Zeds pan (not a problem with front sump coz thinner frame and deep bowl) What do I do here? would have to block it off but with what? maybe a welsh plug? Steve Quote Link to comment Share on other sites More sharing options...
HKSZ Posted May 27, 2012 Author Share Posted May 27, 2012 Here's the hole i have to fill 14 to 15mm Picture is of motor now with z pickup and a pic of the plate vs pan. Quote Link to comment Share on other sites More sharing options...
nizm0zed Posted May 27, 2012 Share Posted May 27, 2012 being on the pickup side of the pump, its low pressure, so a welch plug would be fine. Im sure someone will add to this, but thats what i'd do. Quote Link to comment Share on other sites More sharing options...
Scoota G Posted May 28, 2012 Share Posted May 28, 2012 Just shtick a cork in it (said with a lisp) Quote Link to comment Share on other sites More sharing options...
pauly_adams Posted May 28, 2012 Share Posted May 28, 2012 a big m16 tap and a m16 grub screw would fix your problems Quote Link to comment Share on other sites More sharing options...
nizm0zed Posted May 28, 2012 Share Posted May 28, 2012 a big m16 tap and a m16 grub screw would fix your problems indeed it would, and it'd be an excellent solution if the block were stripped bare. However, it appears in this situation that it would be almost impossible to ensure that 100% of the swarf from cutting the thread would be removed. Admittedly, the few traces that remain would likely be captures safely within the filter, however i would want to risk a complete motor on that assumption. Quote Link to comment Share on other sites More sharing options...
pauly_adams Posted May 28, 2012 Share Posted May 28, 2012 if you keep the block in the correct upright position and use grease insted of cutting fluid swarf would be quite contolable, the clean up with some brake cleaner and your done Quote Link to comment Share on other sites More sharing options...
dazzed Posted May 28, 2012 Share Posted May 28, 2012 Here's the hole i have to fill 14 to 15mm Picture is of motor now with z pickup and a pic of the plate vs pan. thats odd ot fouls on the sump, because if the main pick up oil gallery is straight or parrallel with the block and the distance from the sump bolts to the centre of each pick up gallery is the same distance wouldnt the pick up in the rear position foul on the sump also, i just did the same conversion except vice versa and didnt encounter this problem, i did however use a straight block off plate as shown in your pic yours has a booby shape. Quote Link to comment Share on other sites More sharing options...
dat2kman Posted May 28, 2012 Share Posted May 28, 2012 Use npt pipe thread and matching hex plug, with grease, keep tapping and test depth of plug, in order to obtain clearance, use loctite so it does not loosen with harmonic vibration etc. The other thing that can snap off due to age with harmonic vibration ( no you cant feel it) is the baffle plate holding the gauze pack in, going up into the block vent. FWIW, unscrew it, make a new one with a full width mount plate instead of the two tangs, and loctite in. Speaking from experience here! Quote Link to comment Share on other sites More sharing options...
DatPilot Posted May 29, 2012 Share Posted May 29, 2012 Im going to be converting an L28 for R30 skyline one day in the future... What will you be doing with the old sump and dipstick arrangement?? Could you take some pics for me? Quote Link to comment Share on other sites More sharing options...
HKSZ Posted May 31, 2012 Author Share Posted May 31, 2012 Would of liked to tap it just don't have one that large so got a 15mm welsh plug, which suprises me they make them that size and smaller. thats odd ot fouls on the sump, because if the main pick up oil gallery is straight or parrallel with the block and the distance from the sump bolts to the centre of each pick up gallery is the same distance wouldnt the pick up in the rear position foul on the sump also, i just did the same conversion except vice versa and didnt encounter this problem, i did however use a straight block off plate as shown in your pic yours has a booby shape. Yeah not just the plate fouls the two bolt heads do too. At that point of the z pan the rail is wider and flater that the rest of the pan, which should stop the welsh plug from ever backing out. I'll take a photo of old pan Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.