pushrod adjustments

[chacha]

Glad to hear you're back on the road -- shame it cost so much, but the bike you can't ride is the most expensive of all!

 

[stinger1]

Hey Lee, thought it was only me out of us 2 that has had nothing but grief ! going down 2 Andy soon 2 have some restrister work done, glad urs ok now.

 

[MARV]

well I got the bike back Saturday - now £730 lighter. New gaskets to give piston to head clearance - dropped compression a bit but bike is nicer to ride. Tranny completely broken down and checked and all in perfect working order - thank Christ for that. Rear wheel respaced and entire drive line realigned to include resetting the swing arm. New rings and pistons re cross hatched. Rear bolt on the clutch actuator cover was being pulled out so insert put in along with longer bolts to stop the flexing. Gallons of loctite on the tranny mounting bolts cus they keep coming loose and fucking shit up.

Bike definitely runs a lot smoother now and you can get on the gas without a shit load of juddering and the belt is tracking much better on the trans pulley. All I need to do now is try to make a couple of new side covers and I might be able to enjoy riding the dog again. Fingers crossed.

Wonder what caused the piston to head contact?
I understand the thicker head gasket for clearance but why the contact?
Maybe piston bore on the wrist pin?
Or you always had contact.

What did you originally cut off heads and jugs?

 

[lee]

I don't really know Sul. He did say it could be down to gasket inconsistencies and I do know that my cylinder studs were being pulled out of the case so that had to be addressed so whether that had a knock on effect I don't know and I'm not knowledgeable enough to say much more. He checked the main bearings and they were OK - he thought it might have been that at first because I was only getting contact in one cylinder. I think the thicker gaskets (only 10 thou thicker) are in there for insurance as much as anything else. I think this engine was either not built quite as it should have been or it was abused before I got it because the usual S&S quality doesn't quite seem to be there. When I had the jugs done the heads were left alone - no shaving off the heads. From memory we took 40 thou off the cylinders.

Actually, for the amount work done, £730 is pretty good I think. He practically took half the bike apart and rebuilt it.

Oh, and in case anyone is interested, i asked him about running it in after having the new rings and cross hatching done and I believe the exact words were "thrash the tits off it". Hopefully I won't get as much blow by now.

 

[MARV]

yea strange that you had contact with only .040 off the jugs.

think BD made the jugs .055 taller then TDC

i cut same off the jugs plus .060 off the heads.

sure it wasnt valve to piston contact?

 

[BadBrad]

sure it wasnt valve to piston contact?

I'm thinking the same thing Marv. Lee, I see you have the '05. Do you have the TP rocker boxes? Not that having them would be the cause, but did you notice any excessive wear on the valve guides or isses with the springs? I had a screw come loose inside the rocker box, lodge beside one of the valve springs and kept the valve slightly open causing me to have low compression in that cylinder. If the valve had gotten stuck while a little more open, then it would have conctacted the piston. Just strange that you had that happen. Oh, BTW, what does L750 convert to in USD?

 

[lee]

I don't think it was piston to valve contact from what I've been told. I have S&S boxes Brad and no excessive guide wear that I'm aware of. One of those things I guess. Onwards and upwards.

Brad - £750 is around $1,200 but you can't compare. 750 is 750