Idles now. Set the timing at zero statically, and it was right there with the timing light. Valves were fine. Took her for a spin up and down the road mostly in second, and backfires. Shifting fine, ran fine, brought her back and timing had slipped to almost 6 degrees before TDC or zero, brought her back to TDC. Might have a slight exhaust leak. Will go over it with the wrench before any more running. But so far so good.
neal
My Fourth Engine Build
- ruckman101
- Lord God King Bwana
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Re: My Fourth Engine Build
The slipper has no teeth.
- Amskeptic
- IAC "Help Desk"
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Re: My Fourth Engine Build
Do I get to drive her later this summer . . . . . . pleeeeze? Pleeeeeze? Pleeeeeze?ruckman101 wrote:Idles now. Set the timing at zero statically, and it was right there with the timing light. Valves were fine. Took her for a spin up and down the road mostly in second, and backfires. Shifting fine, ran fine, brought her back and timing had slipped to almost 6 degrees before TDC or zero, brought her back to TDC. Might have a slight exhaust leak. Will go over it with the wrench before any more running. But so far so good.
neal
( ) FINE! I didn't want to ANYWAY
( ) Thank-you!
Colin
BobD - 78 Bus . . . 112,730 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles
- ruckman101
- Lord God King Bwana
- Location: Up next to a volcano.
- Contact:
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Re: My Fourth Engine Build
But of course. No need to ask. A given.Amskeptic wrote:Do I get to drive her later this summer . . . . . . pleeeeze? Pleeeeeze? Pleeeeeze?
( ) FINE! I didn't want to ANYWAY
( X ) Thank-you!
Colin
neal
The slipper has no teeth.
- ruckman101
- Lord God King Bwana
- Location: Up next to a volcano.
- Contact:
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Re: My Fourth Engine Build
Just an update. As I had to take the rebuilt transaxle back to the builder (still popping out of fourth), and I had 300 miles of break-in run time on the engine, I took the opportunity to re-torque the nuts on the head bolts. I went all out, removing fan, tin, intake manifold etc. to get to the top four on each side. The bolts on the cylinder one/two side took very little if not none at all, the three/four side was another story. All of them snugged up quite a bit. I probably got 60 degrees of rotation out of most of them. Glad I made the effort. Exhaust tightened a smidge, but otherwise things were good. Hopefully the transaxle will be ready Monday.
neal
neal
The slipper has no teeth.
-
- Addicted!
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Re: My Fourth Engine Build
hmmm hes making me envious, head retorquing...
good call there while you had it out!
good call there while you had it out!
1975 003 Auto Westy L90D
repair!!!!aug2015
Jan/16 Bumped mixture a few notches richer. finally developing HP.
1.8L/LJet/Pertron DVDA+PertronixCompufire 42/36Ham Heads/AA 93mm pistons/barrels.Porsc.Swiv.Adjusters/CromoSteel pushrds/ Web 9550Cam/55cc chmbr.,035 squish,8.6:1CR/German Supply VWCanadaReman Rods/Schadek 26mmPump/vdo dualOP8/10#low sender/Quart Deep Sump
Backdate Htr bxs,reflanged 914 4into1. Two and three eighths inch collector,magniflow*muffler
repair!!!!aug2015
Jan/16 Bumped mixture a few notches richer. finally developing HP.
1.8L/LJet/Pertron DVDA+PertronixCompufire 42/36Ham Heads/AA 93mm pistons/barrels.Porsc.Swiv.Adjusters/CromoSteel pushrds/ Web 9550Cam/55cc chmbr.,035 squish,8.6:1CR/German Supply VWCanadaReman Rods/Schadek 26mmPump/vdo dualOP8/10#low sender/Quart Deep Sump
Backdate Htr bxs,reflanged 914 4into1. Two and three eighths inch collector,magniflow*muffler
- hercdriver
- Getting Hooked!
- Location: Beaver, PA
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Re: My Fourth Engine Build
Neal,ruckman101 wrote:I took the opportunity to re-torque the nuts on the head bolts. All of them snugged up quite a bit. Exhaust tightened a smidge,
neal
Do you think the backfire was from the exhaust or another source? I'm asking because I have an occasional backfire during deceleration that I'm trying to figure out.
Dave
66 Beetle
75 Westy
Remember that there is nothing stable in human affairs; therefore avoid undue elation in prosperity, or undue depression in adversity. -Socrates
75 Westy
Remember that there is nothing stable in human affairs; therefore avoid undue elation in prosperity, or undue depression in adversity. -Socrates
- ruckman101
- Lord God King Bwana
- Location: Up next to a volcano.
- Contact:
- Status: Offline
Re: My Fourth Engine Build
It's an occasional pop on decel. I think it's at the exhaust. The old engine did the same thing. I'm starting to think I might be running rich, and getting an incomplete burn that ignites in the exhaust. The popping ceases if I give it a touch of accelerator pedal during decel. Entirely speculation at this point. I did nothing with the carburetor beyond taking it off, wiping it clean and putting it back on. I have a friend with an oxygen sensor, EM3 or something that I would like to borrow and apply to the task of adjusting the carb. The engine does run cool, which also makes me suspect a rich mixture.
neal
neal
The slipper has no teeth.