13bbuggy

iTrader: (2)

I finally got my new motor swapped into my buggy and I looked at the timing pulley to set it and there are 6 or 7 notches where there should only be 2. One of them looked yellow, so I set it on that one and went to start it and got nothing. On my last motor when I put the distributor in (it's a S4 running a dizzy instead of a CAS) I looked at the rotor position through my exhaust port on the motor I was ulling it from that I knew was set correctly and made sure the next motor was at roughly the same position, then sure enought the timing marks lined up. I tried the same thing with this one but the rotor was oposite of where it was on the previous 2 engines, so I pulled the dizzy and put the engine where it was on the others and dropped it back in and was able to get it started, but the marks are way off and nowhere near the pin. When I started it will only run above 3000 RPM's, othewise it dies. I think the timing could still be off a bit, but don't know how to get it fixed. This is a mixture of years from what I've been able to find so it's hard to know what year the pulley is from, or if it is correct. The engine is an S4, the front cover is S5, and the water pump is off an early 13b (not sure when).

13bbuggy

iTrader: (2)

A quick update, I messed around with the timing a bit more after work and was able to get it where it will start and will run close to idle, but it still requires a little throttle to keep it going. I have adjusted the idle mixture screws and the idle screw on my Dellorto but then my starter went out so I'll have to wait til tomorrow to check it again ( I put another starter in but my wife says since there are young kids in the neighborhood I can't start it after 8). I did try setting the timing by the marks again and still nothing, then I went by the exhaust rotor position again and it fired right up and runs smooth, the marks are about 1/4 turn past the timing pin where I have it right now and that's where it will run. I did actually get it to start once with it close to lined up but it ran like crap and started backfiring in the high RPM's so I moved it again and it revved nicely again.

13bbuggy

iTrader: (2)

After reading around some more I was able to find how to find tdc by looking through the inspection cover and lining up the automatic counterweight on the right side ( for those with it in a car it would be the drivers side). After doing this there was a bolt by the timing pin and I removed all 4 bolts and pulled the pulley off and lined up the marks at the top and reattached it and all the holes lined up, so I know the pulley must be from a pre 1986 model since after that they would only bolt on in one position. Of course my starter decided to go bad so I couldn't try it to see. I pucked up the new starter tonight and will give it a try in the next day or two.

Manny_Apex

iTrader: (1)

Maannn nobody replying ey? Well good luck bud.

Aaron Cake

iTrader: (1)

Easiest way to find TDC is to remove the front hub and then line up the eccentric key to point to 9 o'clock. Just be aware of the torrington bearings while you do this.

13bbuggy

iTrader: (2)

Ok, new update. I hae been searching on here trying to find an answer for my new found problems but have yet to find one. When it's cold it will start with a good helping of petal pumping before I try it. It will only idle with it advanced a good bit and at 1300-1500 RPM and does have a hesitation off idle, but not above 3500 RPM (I need to look at the idle jets for that from what I've found). When Iget it all warmed up it won't idle at all, it just dies and won't start again unless i pull start it (then it fires right up but will still only run when I keep it revved up above 2000 RPM). I run a dellorto 48 DHLA with a RB intake. I hope to get some responses here so I don't have to start a new thread on it. Also, when I pull the plugs they're dry but it starts up if I pull them and turn it over with the fuel pump off to clear the engine out (so it acts like it flooded but doesn't appear to be).

13bbuggy

iTrader: (2)

I have no idea what the history is of the motor in there, and whether it's been ported or not. All I know is that it has been rebuilt at some point and is pieced together from about 3 different series of motors. I never had problems getting it to idle with the old motor and haven't done anything with the carburetor other than remove it from the old motor and bolt it on to this one. In another thread I just found someone said something about a vacuum leak on their manifold, could this be my problem, and if so where would I look for it to fix it? When I installed it I used one of the metal gaskets (like three of them riveted together) but nothing else. Please help if you can, I am going to work on it tomorrow after work and am supposed to be taking it out to the dunes Saturday if I can get it to start consistently and idle.

13bbuggy

iTrader: (2)

I just realized my timing isn't advanced a lot, it's retarded right now by a lot, would that cause the problems I have indicated? I will re-stab the distributor tomorrow and see what that does, but if anyone has any other ideas then please let me know.

13bbuggy

iTrader: (2)

I took the buggy out for the day Saturday to try to tune it and had 1 great ride, then lost an apex seal somehow. I am not off to a great start with Rotaries, but the few good rides I've had between engine swaps were enough to keep me coming back for more. Not sure what happened, or why it just blew a seal like that, but what ever it was it has made me rethink things and now I've decided to buy a motor from a company and run it the way it was intended (fuel injected and turboed). If anyone has a line on a S4 or newer engine in good shape that's fuel injected and turbo then drop me a line. I'm looking to spend less than $1200 if possible and am just looking for something stockish (nothing crazy I'd just like to make 200-250hp by the time I'm done).