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Start of another new project http://forum.triumphdolomite.co.uk/viewtopic.php?t=28355 |
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Author: | tony g [ Tue Jan 06, 2015 12:41 pm ] |
Post subject: | Re: Start of another new project |
When are you going to do a Stag engine to this spec?[/quote] When the sprint heads fit Tony |
Author: | soe8m [ Tue Jan 06, 2015 2:44 pm ] |
Post subject: | Re: Start of another new project |
Quote: Two questions: Don't you think that headed note paper is showing off a tad? When are you going to do a Stag engine to this spec? Attachment: IMG_4697.JPG [ 37.94 KiB | Viewed 1924 times ] Quote: When are you going to do a Stag engine to this spec?
When the sprint heads fit Tony[/quote] No need when you have a few of these in stock: Attachment: Autocar Photo 7.jpg [ 109.91 KiB | Viewed 1924 times ] |
Author: | tony g [ Tue Jan 06, 2015 4:24 pm ] |
Post subject: | Re: Start of another new project |
Should sound nice Tony |
Author: | soe8m [ Wed Jan 07, 2015 11:28 pm ] |
Post subject: | Re: Start of another new project |
Finished the head tonight. Made some dowels on the inlet side and m10 helicoils on the outlet side. I'm using m10 studs with copper locknuts on the manifold. This way you can tighten and retighten the manifold easy without the threads damaged in the alu head. Attachment: IMG_4710.jpg [ 311.27 KiB | Viewed 1890 times ] Attachment: IMG_4705.jpg [ 233.11 KiB | Viewed 1890 times ] Attachment: DSC00563.jpg [ 750.43 KiB | Viewed 1890 times ] |
Author: | soe8m [ Wed Jan 07, 2015 11:31 pm ] |
Post subject: | Re: Start of another new project |
Assembling some shiny new parts. As the collets are very inexpensive you can replace them. They do wear. You can test them by pulling lightly on the springseat and it has to clamp. When it falls down most of the time the collets are worn. Attachment: IMG_4713.jpg [ 305.36 KiB | Viewed 1890 times ] |
Author: | soe8m [ Wed Jan 07, 2015 11:34 pm ] |
Post subject: | Re: Start of another new project |
I de-tr7nized the manifold because i do not have egr. Attachment: IMG_4715.jpg [ 82.51 KiB | Viewed 1890 times ] Jeroen Attachment: IMG_4717.jpg [ 491.02 KiB | Viewed 1890 times ] |
Author: | straylight [ Thu Jan 08, 2015 4:28 am ] |
Post subject: | Re: Start of another new project |
this is beautiful info Jeroen, thanks for taking the time to document how it all goes together and the reasons why. stu |
Author: | Edin Dundee [ Thu Jan 08, 2015 6:51 am ] |
Post subject: | Re: Start of another new project |
Jeroen, is that rubber between the carb and the manifold? |
Author: | soe8m [ Thu Jan 08, 2015 9:33 am ] |
Post subject: | Re: Start of another new project |
It is tryfitting. There are no pistons in the engine yet. I did order a club alloy one. This is the std rubber one for the hs6 type. Jeroen |
Author: | trackerjack [ Thu Jan 08, 2015 10:58 pm ] |
Post subject: | Re: Start of another new project |
Does your lovely wife (I know she is as we met the poor lass ) mind you building engines in the family kitchen? |
Author: | soe8m [ Thu Jan 08, 2015 11:15 pm ] |
Post subject: | Re: Start of another new project |
That isn't such a good idea because the backdoor of the house is locating in the kitchen Jeroen |
Author: | soe8m [ Thu Jan 29, 2015 11:21 pm ] |
Post subject: | Re: Start of another new project |
Tonight was cranckshaft night. It all started with a freshly balanced combi of a cranckshaft of another engine, my "old" lightened flywheel and a new saab clutch cover. I wanted to re use the cranckshaft what was originally in the engine so i didn't need to have all balanced but there was too much wear on that one. Attachment: IMG_4903.jpg [ 47.32 KiB | Viewed 1788 times ] First you use some scotts brite to remove all the marks and residu's of old baked oil. Then you have to lap the journals to have the smooth shiny surface. That is with a sort of canvas grinding band but very fine. You can tear it of a roll to journal width. Attachment: IMG_4905.jpg [ 422.51 KiB | Viewed 1788 times ] Attachment: IMG_4909.jpg [ 65.06 KiB | Viewed 1788 times ] |
Author: | soe8m [ Thu Jan 29, 2015 11:41 pm ] |
Post subject: | Re: Start of another new project |
Fitting the ARP main bearing studs. Not all engines but a few have the bearingcap bolt bores not inline with the threaded hole in the engineblock. Using original bolts which are a bit thinner and have still a threaded in the lower area of the cap all is well but the ARP studs are slightly thicker and have a non threaded part in the lower area of the bearingcap is does matter. Cap number 4 and 5 you had to tap with a plastic hammer to fit, the rest did just slide over. In the picture you can see that the bore on one side is not inline and that there is a marginal gap between the side of the cap and the engineblock. The cap is on one side pushed to the inside. If the cranckshaft was fitted in this engine it would not have turned by hand. The same happenend at the other (blue) sprint engine of the "new project". From then by every engine i do drill the holes of all the caps 0,5mm bigger and the problem is solved. All the caps because the ones who feel ok you cannot check if the stud is free in the hole or is slightly toughing the edge. Attachment: IMG_4902.jpg [ 301.81 KiB | Viewed 1785 times ] |
Author: | soe8m [ Thu Jan 29, 2015 11:46 pm ] |
Post subject: | Re: Start of another new project |
Measuring the bearing play is easy. For the journals i use a micrometer to start with but when all is fitted plastigauge is ok. It is a soft plastic strip what you do fit between the journal and bearing. Tighten ands it's compressed. How much it is compressed you can read waht the play is. Journal number 5 has the most play and is about 0,04-0,045mm. Triumph has a line somewhere in the big book that say's that the play should be 0,02 till 0,06mm. New ones did have around 0,03 so this cranckshaft is a good one. Attachment: IMG_4910.jpg [ 212.13 KiB | Viewed 1785 times ] |
Author: | Howard81 [ Fri Jan 30, 2015 12:52 am ] |
Post subject: | Re: Start of another new project |
Oh so that's how plastigauge works! Excellent write up, very interesting indeed |
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