Tappet adjustment

Chris Cole · Post by **Chris Cole** » Mon Mar 31, 2008 10:59 am

I have just re-adjuted my tappets and had to juggle with three spanners and a set of feelers. Has anyone made a special tool / know of an easier method of holding the push rod nut to release one of my four hands?
I usually use the just-turn-the-push-rod method for the gap setting, but you still need three hands for the spanners.

Leo Bolter · Post by **Leo Bolter** » Mon Mar 31, 2008 11:45 am

Chris.

I have posted a Javelin/Jupiter Tappet Adjusting Tool dimensioned drawing in my section of the Gallery.

at:
https://jowettnet/forum/download/file.p ... &mode=view Edited 14 Jan 2010 (New URL)

TOPIC

Chris Cole · Post by **Chris Cole** » Mon Mar 31, 2008 1:02 pm

Leo, many thanks, I managed to download your second reference as a word document. What thickness steel did you use please? And is the hole in the bottom corner just to hang the tool up? I was thinking of using gauge plate as the steel.

Leo Bolter · Post by **Leo Bolter** » Mon Mar 31, 2008 8:14 pm

Chris.

Mine's 3/16" (5mm) thick and suits the width of the hexagons on the pushrods perfectly okay.

Yes, the extra hole's for hanging on my toolboard . . and as a bonus ones finger and thumb seems to gravitate to the hole (as it's large) when putting it in position when in use. The hole's also helpful to aid grip as ones digits are usually well and truly oily at that time!

By the way, did you have problems with the first "link"? For some reason I found it was not allowing the final phase (downloading) most of the time . . then it would allow it! With the next try it was being naughty again !! That's why the second link was included.

Leo

Chris Cole · Post by **Chris Cole** » Tue Apr 01, 2008 9:49 am

Leo,
Many thanks; I will use 5 mm or 6 mm gauge plate. I guessed the hole was not functional, though as you say it makes a grip point!
The gallery picture did not 'come up' - I was logged in. The Word was very quick and I saved this on my C drive. Thanks again.

Robin Fairservice · Post by **Robin Fairservice** » Sat Apr 12, 2008 11:50 pm

I have my spare engine in the car now, but its running needs some improvement. It appears that I haven't set the tappets quite right and need to do some adjustment. I have one of the little gizmo's previously mentioned that was made for me from a detail in "Flat Four" the NZ club magazine. I originally set them with the engine out of the car and with all of the hydraulic tappets collapsed. Now how do I do this with the tappets pumped up, and should there be any clearance at the valves at all? My mechanic friend says do them up tight (zero clearance) and tighten up 2 turns. This is from his experience with Chevrolet and Harley Davidson engines.

Leo Bolter · Post by **Leo Bolter** » Sun Apr 13, 2008 5:20 am

Hi Robin.

I have an early Javelin Workshop Manual and have scanned the relevant page to give you the information that you want.

If to go to:

http://60.234.149.204/Leo/Forum_Files/J ... ervice.doc

you'll find it.

Please bear in mind that the comments that I have added are merely based on my thoughts . . . I have not actually carried out what I'm suggesting, in practice!! . . . although I did once own a PB Javelin in my youth, it never needed this work done.

Over to you . . . watch out for flying screwdrivers . .

Regards, Leo

Robin Fairservice · Post by **Robin Fairservice** » Sun Apr 13, 2008 4:09 pm

Thanks Leo. I also have the orginal maintenance manual and your comments are what I was looking for. Odd that a Maintenace manual would tell you how to rebuild,but not how to maintain.

Leo Bolter · Post by **Leo Bolter** » Wed Jan 13, 2010 4:56 am

Leo Bolter wrote:Chris.

I have posted a Javelin/Jupiter Tappet Adjusting Tool dimensioned drawing in my section of the Gallery.

at:

TOPIC

Or at:

http://60.234.149.204/Leo/Forum_Files/J ... t_Tool.doc

I hope this is of some help.

Leo

rob needs · Post by **rob needs** » Wed Jan 13, 2010 3:03 pm

Leo,when i try to look at this doc in the gallery,all i get is a load of numbers and some writing?

Leo Bolter · Post by **Leo Bolter** » Thu Jan 14, 2010 3:31 am

Hello Rob.

I'm sorry you have had the problem as you have mentioned above.
As it's a Gallery download I'm not sure that I can help. Perhaps Keith can advise . . .

When I did a test of downloading the .doc file via the Gallery a few minutes ago, I found the dimension lines and text of the measurements popped up very quickly . . . the actual underlying image that the dimensions are pertaining to took quite a few seconds to arrive. That may your problem.

Anyway, so as to help with the immediate need to view the document I have made a image of the information that is within the doc and inserted it here. See below.

Cheers, Leo

rob needs · Post by **rob needs** » Thu Jan 14, 2010 10:40 am

Cheers Leo,thats sorted it out.

TedAllen · Post by **TedAllen** » Fri Jan 22, 2010 11:53 pm

I made a cruder version a few years ago, but it works well.
A 3/4 inch square mild steel bar, about a foot long, slotted across one end and an inch or so of a cheap ' cut-off ' spanner welded in at right angles.
It's long enough to hold the adjusters from the front of the car, saving your hands from getting in the way of each other, and blocking your view.
It's also heavy enough to stay on the hexagon by itself.

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