| Author | Message | ||
     Flatheadbill |
Hi.Doing some updates on my 2000 X1 and things aren't working out. I have installed a 1250 kit from NRHS. Along with this I added SE 536 cams and Jims hydrosolid 2 lifters. Better springs etc. Timed the cams as per instruction sheet and factory manual. All looked good until I turned the motor over and bent the exhaust pushrods and valves. Can anyone tell me what I have overlooked or ?? I'm not a rookie with bikes or motors but this makes me feel like one. Any positive input greatly appreciated. | ||
| Pash |
Did you allow the tappets to bleed down as you tightened the cylinder head bolts? | ||
| Rich |
Did you use adjustable pushrods? | ||
| Flatheadbill |
The pushrods are stock. 3 line on exhaust, 1 line on intake. Stock rocker setup used. I tried to tighten them slowly and evenly as per the sheet that came with them. How much" bleed down" time is actually required? | ||
| Alfau |
I feel your pain Bill. I'm not familiar with your mods and what is required. First thing came to my mind was pushrods, they need to go back exactly in the order they were removed. Also it's easy to be out one tooth with the cam timing. You'll need to consult your supplier about the need for adjustable pushrods? You would think they would have made you aware, since the opportunity to make extra sale would have put dollar signs in their eyes. Apparently lifters must be adjusted :- http://www.jimsusa.com/pdf/1820_IS.pdf NOTE: HydrosolidŽ II must be adjusted as a solid lifter in a cold motor only. If you are unfamiliar with solid lifter adjustment, seek professional help. Otherwise serious engine valve train damage will result. Hang in there, It's only time and money. | ||
| Alfau |
Solid lifters do not bleed down,they are not hydraulic they are solid. Guess the only way to adjust would be with adjustable pushrods. | ||
| Radon30 |
It's always a good idea to roll the motor by hand, to check for clearance issues, whenever I make such changes I clay my heads and pistons . If I would not have rolled my last build over I would have had a mess, the piston skirts hit at the bottom of stroke . Sorry to hear you had this issue. Alot of these kits are sold as bolt ons but always check for clearance . I know last thing you needed to hear. If I remember right it takes a lot to get The lifters to bleed down, I took my first set apart, to get the oil out so I didn't have to wait for the bleed down. But with your set up I think you need adjustable or custom length. Everyone knocks adjustable but I have never had an issue with them, I don't believe there's that much of a performance difference to buy custom over adjustable . | ||
| Willyboy386 |
Sounds as though you put the front exhaust cam on the rear, and vice versa ..... | ||
| Firemanjim |
Pretty sure the 536 cams are "drop in" which means adjustables are not needed. I would look again at cam timing, tubers have different cams and timing marks than the XB's. | ||
| Xl1200r |
Those hydrosolid II lifters require adjustable pushrods. I'd say that's at least 90% of your problem. How much" bleed down" time is actually required? If you can't spin the pushrod in place with your oily fingers, you need to wait longer. On a stock setup it shouldn't take longer than 10 minutes or so. | ||
| Flatheadbill |
Hi. Thanks for all the advice. I was under the opinion the Jims lifters were a drop in place no mess replacement for the originals. Not so . Adjustable pushrods it is. I'll let you know how it works out. Bill | ||
| Buelliedan |
Jims Powerglides are the "drop ins' you are thinking of not Hydrosolids. |
